| 摘要 |
1. Articulation device combined with a thin folding support (1), rigidifiable when unfolded, the said support comprising first folding grooves (2) and locking mechanisms set in action to make sure the rigidification of the said support (1) when unfolded characterized by the fact that the said locking mechanisms are consisting of disc shaped internal element (3) being an integral part of the said support (1), the said element including second folding and motion tracks and being set in motion by a small tongue (4) between a first position in which the said first and second folding lines are put in a line in such a way that they allow the folding of the said system and a second position in which the said first and second folding lines are displaced in such a way to rigidify the system when unfolded. |
