Abstract: A tube arrangement is described, said arrangement comprising: an inner tube and an outer tube telescopically slidable relative to each other; wherein the inner tube comprises, on an outer surface thereof, a longitudinal groove and a plurality of deformations having a predetermined shape; a sleeve fitted into the outer tube, at one of its ends; a fastening device configured to prevent sliding of the inner tube with respect to the outer tube, when said fastening device is at least partially engaged in one of said deformations; a slider and elastic means, wherein the slider cooperates with the fastening device under the action of the elastic means; and an actuating device operatively connected to the slider; wherein the longitudinal groove forms, at one end of the inner tube, a slide inclined towards the longitudinal axis of the inner tube for separating the inner tube from the outer tube.

Abstract: A telescopic extension, typically for an electric household appliance, comprises: an inner tube and an outer tube. The inner tube and the outer tube are slidable telescopically relative to one another. The inner tube comprises, on an outer surface thereof, a plurality of deformations of predetermined shape; a sleeve fitted inside the outer tube, at one of its ends; a constraining device configured to lock sliding of the inner tube with respect to the outer tube, when the constraining device is at least partially engaged in one of the deformations; a slider and elastic means, wherein the slider cooperates with the constraining device under the action of the elastic means; and an actuating device operatively connected to the slider. The slider comprises a guiding device for providing a guided movement between the slider and the constraining device.

Abstract: A telescopic extension, typically for an electric household appliance, is described, said telescopic extension comprising: an inner tube, an outer tube, wherein said inner tube and said outer tube are slidable telescopically relative to one another, wherein said inner tube comprises, on an outer surface thereof, a plurality of deformations of predetermined shape; a sleeve fitted inside said outer tube, at one of its ends; a constraining device configured to lock sliding of the inner tube with respect to the outer tube, when said constraining device is at least partially engaged in one of said deformations; a slider and elastic means, wherein said slider cooperates with said constraining device under the action of said elastic means; and an actuating device operatively connected to said slider, wherein said slider comprises a guiding device for providing a guided movement between said slider and said constraining device.

Abstract: A telescopic extension for a household appliance comprises: an inner tube and outer tube, with the inner and outer tubes being telescopically slidable with respect to each other A constraining device is configured so as to block sliding of the inner tube with respect to the outer tube An actuating device is operatively connected to a slider. The actuating device comprises a substantially cylindrical body fitted on at least part of the outer surface of the outer tube. The substantially cylindrical body comprises at least one opening positioned to expose a surface of the outer tube whereby grip of user on the substantially cylindrical body may also contact the exposed surface of the outer tube and lock the cylindrical body with respect to the outer tube.

Abstract: A telescopic extension, typically for a household appliance, is described, the extension comprising: a) an inner tube; b) an outer tube, wherein said inner and outer tubes are telescopically slidable with respect to each other, wherein said inner tube comprises deformations of predefined shape on its outer surface; c) a constraining device which is configured so as to block sliding of the inner tube with respect to the outer tube; d) a slider and elastic means, wherein said slider cooperates with said constraining device by means of said elastic means; and e) an actuating device operatively connected to said slider, wherein said actuating device extends over at least half the length of said outer tube, wherein said actuating device comprises a substantially cylindrical body fitted on at least part of the outer surface of said outer tube.