| 摘要 |
A tube shaft for a vacuum cleaner comprising upper and lower tube-shaped parts (11, 14) which by way of a link means (16) are pivotally connected to one another. The link means (16) is provided with a locking mechanism for locking the two tube-shaped parts in one or several angular positions with respect to one another. The tube shaft comprises an operating means (21) arranged at a distance from and above said link means (16). The operating means (21) is connectable to the locking mechanism for activating or deactivating the locking means.
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