| 摘要 |
<p>A telescopic extension (1; 41) for a household appliance comprises an inner tube (2) tightly sliding in an outer tube (3), a sleeve (4; 44), a constraining element (5) between the inner tube (2) and the outer tube (3), a thrust element (6), and an actuator (7). In the extension (1; 41), a tubular end portion (9; 49) associated with the outer tube (3) has a relief (11) forming a niche (12). The sleeve (4; 44) is provided with a projection (15) which is inserted in the niche (12). The sleeve has a hollow (18) wherein the constraining element (5), thrust element (6), and a spring (21) are completely housed. The thrust element (6) is formed by a lengthened, flattened slider (28) provided with a narrow portion (20) having recesses. The actuator (7) has protruding wings (37) provided with inner small teeth (38) which are snap-on coupled with the recesses. (FIG. 1)</p> |
