PROBLEM TO BE SOLVED: To provide a truss for a passenger conveyor which can return to an original position when a compressive load is removed, while preventing buckling of a structural member.SOLUTION: A truss for a passenger conveyor comprises a plurality of beam materials including an upper beam 2, a lower beam 3, an oblique beam 5 and a jamb 4. At least one of reference beam materials is made to be a double structure comprising a hollow material 7 and an insertion rod 8 which are slidable. The reference beam material includes a compression spring 9 when receiving an axial force in a compression direction at normal load time, and includes a stopper 10 when receiving an axial force in a tensile direction. A related beam material having the jamb common to the reference beam material also includes the compression spring or the stopper in the same manner. Both ends of the upper beam and the lower beam include fixing parts respectively, and both ends of the oblique beam include rotation support parts.
【課題】構造部材が座屈することを防ぎつつ、圧縮荷重が除荷された場合には元の位置に復帰することができる、乗客コンベアのトラスの提供。【解決手段】上梁2、下梁3、斜め梁5、縦枠4を含む複数の梁材からなる乗客コンベアのトラスであって、少なくとも一つの基準梁材を、摺動可能な中空材7と挿入棒材8とからなる二重構造とし、基準梁材は、通常荷重時に圧縮方向の軸力を受ける場合には圧縮ばね9を備え、引張方向の軸力を受ける場合にはストッパー10を備えており、基準梁材と共通する縦梁を持つ関連梁材もまた、同様に圧縮ばねまたはストッパーを備えており、上梁および下梁のそれぞれの両端は固定部を備え、斜め梁の両端は回転支持部を備える。【選択図】図10
TRUSS FOR PASSENGER CONVEYOR
乗客コンベアのトラス
2015-08-13
Patent
Electronic Resource
Japanese
IPC: | B66B Aufzüge , ELEVATORS |