Ladder Positioning Structure to Prevent Sliding and Tipping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Straight ladders are prone to unwanted movement, sliding, or dumping during use, posing safety hazards that require manual support to ensure stability.
Innovation Solution
A ladder design featuring a positioning structure with a connecting rod and positioning legs, including a positioning link and plate, which secures the ladder to surfaces, and a support structure with sliding and rotating components for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a straight ladder is used with a simple structure, then the ladder is cheap and easy to manufacture, but the ladder is prone to unwanted movement, sliding, or dumping during use, causing safety hazards
Solution Approach 1:
The ladder is divided into multiple functional segments: the main body (elongated support members with crossbars) and the positioning structure (positioning connecting rod, positioning legs, positioning links, and positioning plates). This segmentation allows each part to perform its specific function while maintaining overall simplicity and manufacturability.
Solution Approach 2:
The positioning structure acts as an intermediary mechanism between the ladder body and the support surface. The positioning links and plates serve as mediators that connect the ladder to the ground, preventing unwanted movement without complicating the main ladder structure.
2Reliability
If a positioning structure is added to prevent unwanted movement, then the ladder stability is improved, but the device complexity increases
Solution Approach 1:
The positioning links are designed to be rotatable, allowing the positioning structure to dynamically adapt to different support surfaces. The rotating rods enable the positioning plates to orient themselves at various angles, providing stability without requiring a complex fixed structure for every possible surface condition.
Solution Approach 2:
The positioning structure utilizes rotational movement to change the orientation parameters of the positioning plates relative to the support surface. This dynamic parameter adjustment allows the same simple structure to effectively stabilize the ladder against unwanted movement on different surfaces.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design ensures the ladder remains immovable and stable during use, preventing sliding and tipping, while being adaptable to various surfaces and cost-effective to produce.
Implementation Method 1
One end of the pair of rotating rods is rotatably connected with the other end of the fixed rod, and the other end of a pair of rotating rods is connected with the positioning plate. The pair of rotating rods can be rotatably connected with the positioning plate.
Data Source
AI summary
A ladder including a ladder body and a positioning structure. The positioning structure is connected at the top of the ladder body and comprises a positioning connecting rod a pair of positioning legs. The positioning connecting rod is connected to the main body of the ladder and the positioning legs are connected to both ends of the positioning connecting rod. The positioning legs may include positioning links and a positioning plate. The positioning links are connected between the positioning connecting rod and the positioning plate. The positioning plate is used to secure the ladder body to a surface. When in use, the top of the ladder body can be fixed at a high place by the positioning structure. In fixing one end, the entire is more secure thereby improving the safety during use.