| 摘要 |
<p>An information presenting device. The device is arranged to be capable of assuming a first configuration, in which the device is flattened for transport or storage, and of assuming a second configuration, in which the device is extended and hence self-supporting. The device comprises at least two panels 4, made of a rigid material, which are joined together along the respective edges of at least two of the panels such that the device, having assumed the second configuration, forms a hollow cylinder, and at least one locking member 6, arranged between said panels 4, for continuously adjustable locking of the device in said first or second configuration, the locking member 6 comprising a first part 8a and a second part 8b, the first part 8a being slidably connected to the second part 8b and the locking member 6 being self-locking by a friction band coupling formed between contact surfaces of the first part 8a and the second part 8b of the locking member 6.</p> |
