To provide staircase equipment capable of maintaining a constantly stable rest state without reference to a position to step on a stool.SOLUTION: Upper ends 22 and 32 of first and second frames are formed to be each extended to a position higher than a top board 50 and bent downward toward the top board 50, and connected to the top board 50 in different positions in a longitudinal direction from each other. Thereby, even when the proximity of a corner on the near side of a tread 40 during ascent/descent is stepped on, a constantly stable rest state can be maintained without reference to a position to step on a stool, while a depth side of the top board 50 is prevented from being flipped upward.SELECTED DRAWING: Figure 9
【課題】踏み台を踏む位置にかかわらず常に安定した立て掛け状態を保つことのできる階段装置を提供する。【解決手段】第1及び第2のフレームの上端部22,32をそれぞれ天板50よりも高い位置まで延設するとともに、天板50に向かって下方に屈曲するように形成し、互いに前後方向の異なった位置で天板50に連結するようにしたので、昇降する際に踏み板40の手前側の角付近を踏んだ場合でも、天板50の奥側が上方に跳ね上がることがなく、踏み台を踏む位置にかかわらず常に安定した立て掛け状態を保つことができる。【選択図】図9
STAIRCASE EQUIPMENT
階段装置
2021-05-20
Patent
Electronic Resource
Japanese
IPC: | B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / B64C AEROPLANES , Flugzeuge / E04F FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS , Ausbau von Bauwerken, z.B. Treppen, Fußböden |