A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Portable ladder with support device
The invention relates to an A-shaped frame ladder which comprises a first telescopic ladder assembly and a second telescopic ladder assembly, and the first telescopic ladder assembly and the second telescopic ladder assembly are connected in a hinged mode. The second ladder assembly pivots about a hinge axis relative to the first ladder assembly between a straight configuration and an A configuration. The second ladder assembly is hingedly connected to a support arm at a top end thereof such that the hinge axis is in line with the ladder post member of the second ladder assembly, and the hinge axis is spaced apart from the top crosspiece of the first ladder assembly in a longitudinal direction of the ladder assembly by a first pivot distance, the second ladder assembly has a first pivot distance and is spaced apart from a top crosspiece of the second ladder assembly by a second pivot distance, wherein the second pivot distance is less than the first pivot distance.
本发明涉及一种A型框架梯子，其包括第一伸缩式梯子组件和第二伸缩式梯子组件，所述第一伸缩式梯子组件和所述第二伸缩式梯子组件铰接地连接，使得所述第二梯子组件围绕铰链轴线相对于所述第一梯子组件在笔直构型与A构型之间枢转。所述第二梯子组件在其顶端处铰接地连接到支座臂，使得所述铰链轴线与所述第二梯子组件的所述梯柱构件成一直线，并且所述铰链轴线在所述梯子组件的纵向方向上相对于所述第一梯子组件的顶部横档间隔开第一枢转距离，并且相对于所述第二梯子组件的顶部横档间隔开第二枢转距离，其中所述第二枢转距离小于所述第一枢转距离。
Portable ladder with support device
The invention relates to an A-shaped frame ladder which comprises a first telescopic ladder assembly and a second telescopic ladder assembly, and the first telescopic ladder assembly and the second telescopic ladder assembly are connected in a hinged mode. The second ladder assembly pivots about a hinge axis relative to the first ladder assembly between a straight configuration and an A configuration. The second ladder assembly is hingedly connected to a support arm at a top end thereof such that the hinge axis is in line with the ladder post member of the second ladder assembly, and the hinge axis is spaced apart from the top crosspiece of the first ladder assembly in a longitudinal direction of the ladder assembly by a first pivot distance, the second ladder assembly has a first pivot distance and is spaced apart from a top crosspiece of the second ladder assembly by a second pivot distance, wherein the second pivot distance is less than the first pivot distance.
本发明涉及一种A型框架梯子，其包括第一伸缩式梯子组件和第二伸缩式梯子组件，所述第一伸缩式梯子组件和所述第二伸缩式梯子组件铰接地连接，使得所述第二梯子组件围绕铰链轴线相对于所述第一梯子组件在笔直构型与A构型之间枢转。所述第二梯子组件在其顶端处铰接地连接到支座臂，使得所述铰链轴线与所述第二梯子组件的所述梯柱构件成一直线，并且所述铰链轴线在所述梯子组件的纵向方向上相对于所述第一梯子组件的顶部横档间隔开第一枢转距离，并且相对于所述第二梯子组件的顶部横档间隔开第二枢转距离，其中所述第二枢转距离小于所述第一枢转距离。
Portable ladder with support device
具有支座装置的便携式梯子
LAMPE CHRISTOPHER B (author) / HEUVELD MICHIEL C (author)
2024-07-23
Patent
Electronic Resource
Chinese
IPC:
E06C
LADDERS
,
Leitern