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(11) | EP 2 345 773 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Adjustable spine stair embodiment |
| (57) The invention relates to adjustable spine stair embodiments containing steps (70)
with or without rails, providing travel between at least two floors, platforms or
structures of vertical height between them indoor or outdoor part of any type of locations,
consisting of connection part (52) containing connection plates (53.1) connected to
the lower surface of the said steps (70) used for connection of the said steps (70)
as spine (50) and connection pipe (53.5) located under the said connection plate (53.1),
spines (50) containing pipe (51) connected to the said connection part (52) by means
of intermediate connection part (130), and it is characterized in that it consists
of connection plate duct (11) located on the said connection plate (53.1) providing
movement of the stair step (70) on the spine (50) in horizontal plane; connection
member (20) passing from the said duct (11) and connected to the step (70); upper
floor connection spine (10) mounted onto lower part of the top step (70) of the stair,
providing connection of step (70) to the spine (50) and the step (70) to the upper
floor (120)
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