A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a foldable staircase easily folded and unfolded, and having a compact folded state with good appearance.SOLUTION: In a foldable staircase, a stationary bridgeboard 2 with an upper oblique side formed in a footstep shape and fixed to a wall face, and a movable bridgeboard 3 with a lower oblique side formed in the footstep shape and rotatable are formed by connecting footstep-shaped horizontal parts with each other by multiple treads 4 having hinges 8 at both end sides. The movable bridgeboard 3 is lifted above the stationary bridgeboard 2 by the vertically standing treads 4 in a folded state and each tread 4 fits in a space while filling the space formed between the stationary bridgeboard 2 and the movable bridgeboard 3. Thus, all of the treads 4 and the movable bridgeboard 3 adhere on or approach the wall face and settle in a roughly flush state with the stationary bridgeboard 2. In an unfolding time, by rotating the movable bridgeboard 3 obliquely downward, a lower end side of the movable bridgeboard 3 abuts on a floor face to become an unfolded state, to thereby horizontally support all of the treads 4.SELECTED DRAWING: Figure 1
【課題】折畳み階段について、折畳み・拡開操作が容易であるとともに、折畳んだ状態がよりコンパクトで見栄えの良いものとする。【解決手段】上側斜辺が段形に形成され壁面に固定される固定ササラ桁２と、下側斜辺が段形に形成され回動動作をする可動ササラ桁３が、段形の水平部同士を両端側に蝶番８を設けた複数枚の踏板４で連結されてなり、折畳み状態で垂直に立った踏板４により可動ササラ桁３が固定ササラ板２の上方に持ち上げられて支持されるとともに、各踏板４が固定ササラ桁２と可動ササラ桁３の間に形成された空間を埋めながら収まるものとして、総ての踏板４と可動ササラ桁３が壁面に密着又は近接しながら固定ササラ桁２と略面一の状態となり、拡開時には可動ササラ桁３を斜め下方に回動させることで可動ササラ桁３の下端側が床面に当接して拡開状態となって総ての踏板４が水平に支持されるものとした。【選択図】図１
To provide a foldable staircase easily folded and unfolded, and having a compact folded state with good appearance.SOLUTION: In a foldable staircase, a stationary bridgeboard 2 with an upper oblique side formed in a footstep shape and fixed to a wall face, and a movable bridgeboard 3 with a lower oblique side formed in the footstep shape and rotatable are formed by connecting footstep-shaped horizontal parts with each other by multiple treads 4 having hinges 8 at both end sides. The movable bridgeboard 3 is lifted above the stationary bridgeboard 2 by the vertically standing treads 4 in a folded state and each tread 4 fits in a space while filling the space formed between the stationary bridgeboard 2 and the movable bridgeboard 3. Thus, all of the treads 4 and the movable bridgeboard 3 adhere on or approach the wall face and settle in a roughly flush state with the stationary bridgeboard 2. In an unfolding time, by rotating the movable bridgeboard 3 obliquely downward, a lower end side of the movable bridgeboard 3 abuts on a floor face to become an unfolded state, to thereby horizontally support all of the treads 4.SELECTED DRAWING: Figure 1
【課題】折畳み階段について、折畳み・拡開操作が容易であるとともに、折畳んだ状態がよりコンパクトで見栄えの良いものとする。【解決手段】上側斜辺が段形に形成され壁面に固定される固定ササラ桁２と、下側斜辺が段形に形成され回動動作をする可動ササラ桁３が、段形の水平部同士を両端側に蝶番８を設けた複数枚の踏板４で連結されてなり、折畳み状態で垂直に立った踏板４により可動ササラ桁３が固定ササラ板２の上方に持ち上げられて支持されるとともに、各踏板４が固定ササラ桁２と可動ササラ桁３の間に形成された空間を埋めながら収まるものとして、総ての踏板４と可動ササラ桁３が壁面に密着又は近接しながら固定ササラ桁２と略面一の状態となり、拡開時には可動ササラ桁３を斜め下方に回動させることで可動ササラ桁３の下端側が床面に当接して拡開状態となって総ての踏板４が水平に支持されるものとした。【選択図】図１
FOLDABLE STAIRCASE
折畳み階段
SUNAGA SEIJI (author)
2020-06-04
Patent
Electronic Resource
Japanese
IPC:
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden