Abstract: An indoor dust collecting system includes an air conditioner having an indoor unit that generates an air current, a dust collector, and a controller for controlling the air current from the indoor unit. A moving body detector is provided to detect a moving body such as, for example, a person, a pet, a cleaning robot, and the like. The air current from the indoor unit is controlled by the controller based on the position of the indoor unit, the position of a spot of occurrence of dust detected by the moving body detector, and the position of the dust collector such that the air current from the indoor unit reaches the dust collector via the spot of occurrence of dust in order for the dust collector to effectively suck the dust.

Abstract: An indoor dust collecting system includes an air conditioner having an indoor unit that generates an air current, a dust collector, and a controller for controlling the air current from the indoor unit. A moving body detector is provided to detect a moving body such as, for example, a person, a pet, a cleaning robot, and the like. The air current from the indoor unit is controlled by the controller based on the position of the indoor unit, the position of a spot of occurrence of dust detected by the moving body detector, and the position of the dust collector such that the air current from the indoor unit reaches the dust collector via the spot of occurrence of dust in order for the dust collector to effectively suck the dust.

Abstract: A vacuum cleaner is disclosed, and this cleaner maintains sucking power at a high level while it resists lowering the suction force although it sucks dust. The vacuum cleaner includes a cylindrical dust collecting case which takes air in sucked by an electric air blower and including dust. The case includes a suction port through which the air including dust flows into the case along a tangent line, and a dust collector communicates with the port. A dust filter in the case is placed in an air-duct through which the case communicates with the electric air blower. This structure allows whirling airflow in the case to whirl continuously in the case, so that dust can be removed from the filter even if the dust attaches to the filter. As a result, sucking airflow can be always secured.

Abstract: A washer-dryer has an improved efficiency of drying; namely, the drying time is shortened and the unevenness of drying is alleviated. Furthermore, vibration during operations, especially during spin-drying, is reduced. An inner tub of approximately cylindrical shape rotating around a substantially vertical axis and for receiving a wash load is housed in an outer tub. The inner tub is provided with freely rotatable agitating means at the bottom part for agitating the wash load. A motor rotates the inner tub or the agitating means. The air to be supplied through a hot air supply channel into the inner tub is heated by heating means, which air is advanced by a drying air blower into the inner tub. Control means controls each of the washing, rinsing, spin-drying and drying processes by controlling respective operations of the motor, the heating means, the drying air blower, etc.

Abstract: In the present invention, winding units (19) as a stator (23) are fixedly mounted in a cylindrical housing (1). A rotor (29) is provided on vanes (26) for supplying wind. The rotor (29) is disposed to surround the stator (23), thereby forming a brushless motor (30) that provides a hair direr having low noise level and lighter construction. The rotor has a sufficiently larger dimension in a direction of flow of wind than the stator (23). The stator (23) and rotor (28) are positioned relative to each other such that the center of the stator (23) in the direction of flow of wind is at the same position as the center of the rotor (29) in the direction of flow of wind. Thus, even if the rotor (29) moves slightly in the direction of flow of wind when the rotor (29) is rotating, the torque will not change significantly.

Abstract: A washer-dryer has an improved efficiency of drying; namely, the drying time is shortened and the unevenness of drying is alleviated. Furthermore, vibration during operations, especially during spin-drying, is reduced. An inner tub of approximately cylindrical shape rotating around a substantially vertical axis and for receiving a wash load is housed in an outer tub. The inner tub is provided with freely rotatable agitating means at the bottom part for agitating the wash load. A motor rotates the inner tub or the agitating means. The air to be supplied through a hot air supply channel into the inner tub is heated by heating means, which air is advanced by a drying air blower into the inner tub. Control means controls each of the washing, rinsing, spin-drying and drying processes by controlling respective operations of the motor, the heating means, the drying air blower, etc.

Abstract: A washer-dryer having an improved efficiency of drying up; namely, the drying time is shortened and the unevenness of drying is alleviated. Furthermore, vibration during operations, especially during spin-drying, is reduced. An inner tub of approximately cylindrical shape rotating around a substantially vertical axis and receives a washing is housed in an outer tub. The inner tub is provided with freely rotatable agitating means at the bottom part for agitating the washing. A motor rotates the inner tub or the agitating means. The air to be supplied through a hot air supply channel into the inner tub is heated by heating means, which air is advanced by a drying air blower into the inner tub. Control means controls each of the washing, rinsing, spin-drying and drying processes by controlling respective operations of the motor, the heating means, the drying air blower, etc.

Abstract: There are provided an outer tub suspended elastically in an enclosure, an inner tub for containing clothes supported rotatably within the outer tub, and a rotary impeller held rotatably on an inner bottom portion of the inner tub. The inner tub and/or the rotary impeller are driven by a motor. A drying blower delivers air into the inner tub, and a heater heats the air delivered by the blower unit. A controller controls operation of the motor, the drying blower, the heater, and the like, thereby controlling each process of washing, rinsing, hydro-extraction, and drying. In the hydro-extraction process, the controller drives the inner tub while also driving the drying blower to maintain delivery of air into the inner tub.

Abstract: In the present invention, winding units (19) as a stator (23) are fixedly mounted in a cylindrical housing (1). A rotor (29) is provided on vanes (26) for supplying wind. The rotor (29) is disposed to surround the stator (23), thereby forming a brushless motor (30) that provides a hair direr having low noise level and lighter construction. The rotor has a sufficiently larger dimension in a direction of flow of wind than the stator (23). The stator (23) and rotor (28) are positioned relative to each other such that the center of the stator (23) in the direction of flow of wind is at the same position as the center of the rotor (29) in the direction of flow of wind. Thus, even if the rotor (29) moves slightly in the direction of flow of wind when the rotor (29) is rotating, the torque will not change significantly.

Abstract: An upright vacuum cleaner includes a main body, a floor nozzle unit, and a float plate or float unit. The main body has a motor fan for generating a suction force and a dust-collection chamber for collecting dust. The motor fan provides the suction force to the dust collection chamber. The floor nozzle unit is disposed under the main body. The floor nozzle unit has an inlet port connected to the dust-collection chamber for attracting dust on a floor into the dust-collection chamber by the suction force of said motor fan. The float plate or float unit is disposed on a lower face of the floor nozzle unit. The float plate or float unit includes a floor opposing face where an outlet port is formed for spouting discharge air to the floor from the motor fan. The float face is located around the outlet port to receive a lifting force produced by pressure of the discharge air between the float face and the floor to be cleaned.

Abstract: An upright vacuum cleaner has a float unit (29A) for lifting the upright vacuum cleaner during cleaning by spouting discharge air to a floor to be cleaned. The float unit (29A) has a floor-opposing face having a discharge-air outlet port (31) for spouting the discharge air of a motor fan (21).

Abstract: An upright vacuum cleaner has a floating function for lifting the upright vacuum cleaner in a cleaning operation by spouting discharge air flow to a floor to be cleaned, and at least a suction-air inlet port for sucking air with dusts is arranged at an outer portion of a bottom face of a floor nozzle unit of the upright vacuum cleaner.

Abstract: An image processing apparatus for recording image data using an ink jet recording method comprises: an ink jet nozzle to eject an ink droplet and deposit onto a paper; a controller to control the ink jet nozzle so as to enable the recording interval when the ink droplet is deposited on the same position on the paper a plurality of times; a supply circuit to supply image data to the ink jet nozzle; and a distinction circuit to discriminate whether the input image data is a half tone image or a diagram image, wherein this controller controls the recording interval in accordance with the result of the discrimination. With this apparatus, by superposing the recording dots on the same position on the paper in accordance with the binary image data, gradations and graininess can be improved by a simple structure.

Abstract: A method for halftone image recording, wherein dots are formed using two or more concentrations of ink, to express different image densities. Each picture element may comprise a plurality of cells, different predetermined members and patterns of which are actually printed in, to express different gradations. Different such patterns may be used for each ink concentration. Several such patterns, using only thin ink, may, for example, be used to express lower densities, several others, using only thick ink, for high densities, and still others, using dots of thin ink and dots of thick ink, for intermediate densities. For color image recording, different concentrations and different members of concentrations can be used for different colors.

Abstract: The electric blower comprises an impeller of the centrifugal type driven by a motor, a diffuser having a plurality of divergent passages into which air flow discharged from said impeller flows, an air guide having a return passage subsequently directing said air flow from said divergent passages into the interior of said motor, and a casing housing therein said impeller, said diffuser and said air guide. Each guide wall of said air guide defining said return passage includes an inner guide wall section, an outer guide wall section and a space interposed between each inner guide wall section and the corresponding outer guide wall section, an opening being formed at the inner terminal end of each space.