Abstract: The invention relates to an air volume flow and pushing force control device for a vacuum cleaner that has at least a motor, a dust receptacle and a suction nozzle, comprising a controller for controlling the motor power, a first sensor for detecting the air volume flow, which in conjunction with the controller forms a first control loop in order to maintain the air volume flow at a prescribed air volume flow value on the basis of the signal of the first sensor. The control device further comprises a second sensor for detecting a pushing force that is required for pushing the suction nozzle, and in conjunction with the controller, forms a second control loop in order to maintain the pushing force below a prescribed value on the basis of the signal of the second sensor, and a control loop selection device that activates one of the two control loops as a function of the signals of the two sensors.

Abstract: An actuating element mounted on an electrical appliance for pivotal movement about a pivoting axis in the switching direction of a switch, in order to switch a function of the electrical appliance by actuating the switch, and comprises a slide with an actuating surface that is guided along a slide path provided on the actuating element to adjust an operating parameter. An operating rocker/slide is provided enabling uniform forces introduced into the operating rocker during displacement of the slide. The actuating element includes the slide path and the pivoting axis extending substantially parallel to each other. The parallel orientation of the pivoting axis and the slide path enables the same length of lever arm to be obtained in relation to the pivoting axis of the actuating element, in each position of the slide, during the introduction of forces into the actuating surface of the slide.

Abstract: The invention relates to an air volume flow and pushing force control device for a vacuum cleaner that has at least a motor, a dust receptacle and a suction nozzle, comprising a controller for controlling the motor power, a first sensor for detecting the air volume flow, which in conjunction with the controller forms a first control loop in order to maintain the air volume flow at a prescribed air volume flow value on the basis of the signal of the first sensor. The control device further comprises a second sensor for detecting a pushing force that is required for pushing the suction nozzle, and in conjunction with the controller, forms a second control loop in order to maintain the pushing force below a prescribed value on the basis of the signal of the second sensor, and a control loop selection device that activates one of the two control loops as a function of the signals of the two sensors.

Abstract: A vacuum cleaner, comprising a housing, in which a dust chamber is embodied for housing a dust separator, which may be sealed by means of a dust chamber lid, mounted on the housing and a housing for accessory pieces which can be closed by the dust chamber lid. According to the invention, the contamination of the accessory pieces by dust from the dust chamber may be prevented, whilst maintaining easy access to the accessory pieces by means of the dust chamber lid, whereby the housing is embodied as an adjoining chamber, directly adjacent to the dust chamber which is separated from the dust chamber in a dust-tight manner by means of a separating wall. The above has the advantage of permitting a user to remove an accessory piece without getting dirty.

Abstract: A vacuum cleaner comprising a housing (1), in which a dust compartment (5), which can be closed by a dust compartment cover and is designed to receive a dust interceptor (6), and a fan compartment (7) for receiving a motor-driven fan unit (8) are configured. The vacuum cleaner also comprises a receiving compartment (16) for attachments (17), which extends below the dust compartment (5) and/or the fan compartment (7) and can be accessed by means of an opening (18) in the housing (1). The aim of the invention is to permit users to remove attachments (17) easily from the receiving compartment (16) that is located below the dust compartment (5) and the fan compartment (7). To achieve this, the opening(s) (18) is/are provided in a lateral wall (19) of the housing (1). This permits attachments (17) to be removed, without bringing the vacuum cleaner out of its normal operating position.

Abstract: A vacuum cleaner comprising a housing containing a housing part for receiving components of electrical appliances, and a dust compartment which can be closed by a dust compartment cover that is mounted in such a way that it can pivot between a position wherein the dust compartment is closed and a position wherein the dust compartment is opened. Said cover is provided with a socket for the electrical supply of additional appliances, said socket being connected to an electrical line leading out of the housing part. The aim of the invention is to ensure the operating safety of the inventive vacuum cleaner over a very long period of time. To this end, the housing is provided with a compartment for automatically inserting a section of the electrical line during the pivoting of the dust compartment cover from the opening position to the closing position.

Abstract: An actuating element mounted on an electrical appliance for pivotal movement about a pivoting axis in the switching direction of a switch, in order to switch a function of the electrical appliance by actuating the switch, and comprises a slide with an actuating surface that is guided along a slide path provided on the actuating element to adjust an operating parameter. An operating rocker/slide is provided enabling uniform forces introduced into the operating rocker during displacement of the slide. The actuating element includes the slide path and the pivoting axis extending substantially parallel to each other. The parallel orientation of the pivoting axis and the slide path enables the same length of lever arm to be obtained in relation to the pivoting axis of the actuating element, in each position of the slide, during the introduction of forces into the actuating surface of the slide.

Abstract: The invention relates to a vacuum cleaner comprising a housing and an exhaust opening that is fluidically connected to an overpressure side of a motor/blower unit, which is surrounded by an insulating capsule and which is placed inside a blower housing, via a duct that has a duct section, which is arranged while extending between the insulating capsule and the motor/blower housing. The aim of the invention is to obtain a fluidically optimized duct between the insulating capsule of the motor/blower unit and of a housing part with simple means whose production and assembly are cost-effective. To this end, the invention provides that at least one capsule part of the insulating capsule is joined to a housing part, particularly of the blower housing, while forming a single piece. The largely prevents the formation of perturbing edges due to assembly gaps, and the vacuum cleaner can be cost-effectively produced and assembled with a reduced variety of parts.

Abstract: A vacuum cleaner comprising a housing containing a housing part for receiving components of electrical appliances, and a dust compartment which can be closed by a dust compartment cover that is mounted in such a way that it can pivot between a position wherein the dust compartment is closed and a position wherein the dust compartment is opened. Said cover is provided with a socket for the electrical supply of additional appliances, said socket being connected to an electrical line leading out of the housing part. The aim of the invention is to ensure the operating safety of the inventive vacuum cleaner over a very long period of time. To this end, the housing is provided with a compartment for automatically inserting a section of the electrical line during the pivoting of the dust compartment cover from the opening position to the closing position.

Abstract: A filter stop for a vacuum cleaner contains a dust chamber that is closable with a lid and receives a dust bag with a reinforcement plate in a specific fitting position. The filter stop has a base plate that is movable between two stopping positions parallel to the direction in which the reinforcement plate of the dust bag is inserted into the dust chamber. The filter stop is also provided with a swiveling lever that can be brought into a position activating the vacuuming function of the vacuum cleaner by the reinforcement plate when the dust bag is correctly positioned. The swiveling lever is in a position preventing the vacuuming function from being activated when the dust bag is not correctly positioned. The filter stop can be brought into a stop position activating the vacuuming function exclusively when the swiveling lever is actuated by a shoulder of the reinforcement plate.

Abstract: A vacuum cleaner includes a housing and at least one running roller operatively connected to the housing. The roller has a hub, a running ring, a wall connecting the running ring and the hub. The wall has two side surfaces and a curved cross-section between the running ring and the hub. The roller has at least one reinforcing rib extending at least from one of the two side surfaces of the wall and being in contact with neither the hub nor the running ring in a non-loaded state of the running roller. The roller forms an elastic caster with a nave and a bearing race. The nave and the bearing race are connected to another by an S or Z-shaped curved wall. Ribs are provided for reinforcing the wall or the nave.

Abstract: A vacuum cleaner comprising a housing (1), in which a dust compartment (5), which can be closed by a dust compartment cover and is designed to receive a dust interceptor (6), and a fan compartment (7) for receiving a motor-driven fan unit (8) are configured. The vacuum cleaner also comprises a receiving compartment (16) for attachments (17), which extends below the dust compartment (5) and/or the fan compartment (7) and can be accessed by means of an opening (18) in the housing (1). The aim of the invention is to permit users to remove attachments (17) easily from the receiving compartment (16) that is located below the dust compartment (5) and the fan compartment (7). To achieve this, the opening(s) (18) is/are provided in a lateral wall (19) of the housing (1). This permits attachments (17) to be removed, without bringing the vacuum cleaner out of its normal operating position.

Abstract: A vacuum cleaner comprising a housing having an outer surface. A bumper strip projects outwardly from the housing and extends along the outer surface of the housing. A retaining element projects outwardly from the housing and extends along the outer surface of the housing adjacent the bumper strip. The retaining element overlaps the bumper strip. The bumper strip contacts the retaining element and is elastically deformable to slide with respect to the retaining element. The bumper strip forms a convex curved structure that bulges outwardly from the housing.

Abstract: A vacuum cleaner, comprising a housing, in which a dust chamber is embodied for housing a dust separator, which may be sealed by means of a dust chamber lid, mounted on the housing and a housing for accessory pieces which can be closed by the dust chamber lid. According to the invention, the contamination of the accessory pieces by dust from the dust chamber may be prevented, whilst maintaining easy access to the accessory pieces by means of the dust chamber lid, whereby the housing is embodied as an adjoining chamber, directly adjacent to the dust chamber which is separated from the dust chamber in a dust-tight manner by means of a separating wall. The above has the advantage of permitting a user to remove an accessory piece without getting dirty.

Abstract: A vacuum cleaner includes a housing and at least one running roller operatively connected to the housing. The roller has a hub, a running ring, a wall connecting the running ring and the hub. The wall has two side surfaces and a curved cross-section between the running ring and the hub. The roller has at least one reinforcing rib extending at least from one of the two side surfaces of the wall and being in contact with neither the hub nor the running ring in a non-loaded state of the running roller. The roller forms an elastic caster with a nave and a bearing race. The nave and the bearing race are connected to another by an S or Z-shaped curved wall. Ribs are provided for reinforcing the wall or the nave.

Abstract: A hydrodynamic coupling device is provided including a housing, a lock up clutch, a friction surface mechanism, a fluid duct and three connecting ducts. The lock up clutch has a clutch element arranged in the housing and may be pressed against the housing. The friction surface mechanism is arranged between the clutch element and the housing. The clutch element and the friction surface mechanism separate an interior of the hydrodynamic coupling device into a first fluid space and a second fluid space. The fluid duct means is in the friction surface mechanism and permits the working fluid to flow into and out of the first fluid space while preventing the working fluid from flowing out of the first fluid space into the second fluid space. The connecting ducts are in the fluid duct, with the first connecting duct is capable of permitting flow of the working fluid to the first fluid space, the second connecting duct is capable of permitting flow of the working fluid into and out of the second fluid space.

Abstract: A hydrodynamic coupling device having a housing which is, or can be, filled with hydraulic fluid, a turbine wheel which is rotatably arranged in the housing and is, or can be, connected to an output shaft for joint rotation, and a sliding bearing arrangement which the turbine wheel is rotatably mounted relative to the housing, and which has a hydraulic fluid channel arrangement for the passage of hydraulic fluid from radially outside to radially inside relative to the region of the output shaft, or vice versa.

Abstract: A hub arrangement for a hydrodynamic torque converter includes a first hub component forming a first hub area with a first connection area connectable with a converter housing of the torque converter, a second hub component forming a second hub area with a second connection area connectable with a lockup clutch of the torque converter, and a fluid channel arrangement having at least one fluid channel connecting a radial inner area of the hub arrangement with a radial outer area. The first hub component and the second hub component contact one another at least in some areas in surface regions thereof which are located opposite one another. A recess arrangement is arranged in at least one of the oppositely located surface regions of the first and second hub components for forming the fluid channel arrangement.

Abstract: A hydrodynamic torque converter includes a converter casing with a support connected on the drive side of the casing. The support includes a receptacle for receiving a connecting element for fastening the converter casing to a component of a drive. The receptacle is formed via an extrusion extending essentially at a right angle to the extension direction of the support and includes an annular collar surrounding a recess.

Abstract: A housing component for a hydrodynamic clutch device, especially a hydrodynamic torque converter, possesses a friction surface region for a converter lock-up clutch of the clutch device on a first side which is positionable for facing the interior of the clutch device. This housing component is formed by, at least in the region of the friction surface region, the reshaping of a metal component. On a second side of the housing component lying opposite to the first side a surface structuring is formed in a region corresponding to the friction surface region by reshaping of the metal component to form the friction surface region.