| 摘要 |
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.
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