Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Telescopic device achieves both simultaneous unlocking of paired locking units and easy unlocking of one locking unit, and comprises: outer casings (8); insertion bodies (9); vertically-arranged rung members (6); locking mechanism (7); and operating means (93) having operating member (69). The locking mechanism comprises retention portion (11) of the insertion body and locking member (23) supported on the outer casing for engagement with and disengagement from the retention portion by separating-approaching motion. The locking member is interlocked to operating member (69) extending from the locking mechanism toward the upper rung member. The operating means has operating rod (96) for coupling the paired operating members for concurrent movements in unlocking direction. Each end of the operating rod and one operating member are fitted together so that, when manipulating one end of the operating rod in unlocking direction, the operating rod is inclined for movement of one operating member in unlocking direction.
Telescopic device achieves both simultaneous unlocking of paired locking units and easy unlocking of one locking unit, and comprises: outer casings (8); insertion bodies (9); vertically-arranged rung members (6); locking mechanism (7); and operating means (93) having operating member (69). The locking mechanism comprises retention portion (11) of the insertion body and locking member (23) supported on the outer casing for engagement with and disengagement from the retention portion by separating-approaching motion. The locking member is interlocked to operating member (69) extending from the locking mechanism toward the upper rung member. The operating means has operating rod (96) for coupling the paired operating members for concurrent movements in unlocking direction. Each end of the operating rod and one operating member are fitted together so that, when manipulating one end of the operating rod in unlocking direction, the operating rod is inclined for movement of one operating member in unlocking direction.