Modular Ladder Sections with Hook Suspension for Safe Installation
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Solution Overview
Problem
The installation of crinoline ladders is complex and hazardous due to their bulky size, weight, and the need for precise height adjustments, often requiring manual handling and assembly on-site, which can lead to equipment damage and safety risks for installers.
Innovation Solution
A modular assembly system featuring a first ladder section fixed to the host structure, with a suspension means using hooks to facilitate easier and safer installation by suspending subsequent sections from the upper section, eliminating the need for pre-assembled elements and reducing the need for precise on-site adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the ladder is assembled on the ground before installation, then the assembly can be prepared in advance, but the equipment is easily damaged and installers are exposed to falling risks during handling
Solution Approach 1:
The ladder is divided into multiple sections that can be assembled separately and connected during installation using connection elements, eliminating the need to assemble the entire ladder on the ground and reducing handling risks
Solution Approach 2:
Connection elements are pre-assembled on the ladder sections during manufacturing, so that during installation only the final connection operation is needed, combining advance preparation with on-site assembly safety
2Ease of operation
If the ladder sections are positioned successively from bottom to top, then the installation can be done systematically, but the ladder may not correspond to the exact height desired
Solution Approach 1:
The ladder height is made adjustable through telescopic uprights that can be extended or retracted to achieve the exact desired height, allowing systematic installation from bottom to top while maintaining height precision
Solution Approach 2:
The physical parameter of ladder height is made variable through telescopic mechanisms, enabling the ladder to adapt to different height requirements while being installed systematically section by section
3Productivity
If the installer connects ladder sections while supporting the weight of the module being installed, then the installation can proceed, but the operation is difficult and dangerous
Solution Approach 1:
A support device is introduced as an intermediary tool to hold the ladder section being installed, allowing the installer to connect sections without manually supporting the full weight, thus maintaining installation continuity while reducing difficulty and danger
Data Source
Figure 1
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AI summary
A ladder mounting assembly (13) for a ladder on a support structure (105) comprises: - at least one first ladder section (110a), - a bracket (145) for attaching a section to an upper end of the support structure, - at least one second ladder section (110b, 160), and - a suspension means (155) for a second section to another section comprising two hooks (325, 330), one hook being attached to the lower rung (120) of the upper section and one hook being attached to the upper rung (150) of the second section. Each ladder section comprises stiles connected by rungs (120, 150), and at least one suspension means (155) comprises a junction between the hooks with dimensions corresponding to the dimensions of the stiles of the ladder sections, said junction partially surrounding an upper stile of the upper ladder section and an stile of the lower ladder section.