Ladder Stabilizing Apparatus with Retractable Leg and Ground Anchor
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Solution Overview
Problem
Ladders tend to slip or topple on uneven or soft ground, increasing the risk of accidents and injuries due to inadequate engagement with the ground.
Innovation Solution
A ladder extension and spike device that attaches to the ladder, featuring a push plate to deploy extensions and spikes sequentially, providing equal load distribution and ground anchoring, along with a stabilizing apparatus including a rail mount, retractable leg, ground anchor, and foot pedal for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a ladder is used on uneven or soft ground, then the ladder can be deployed for use, but the ladder slips or topples due to inadequate engagement with the ground
Solution Approach 1:
The retractable leg is nested within the ladder structure, and the ground anchor is nested within the retractable leg. When deployed, these nested components extend outward to provide additional stabilization. The leg transitions from a retracted state (stored within the ladder) to an extended state (protruding to the ground), and the anchor transitions from retracted to extended (piercing the ground). This nesting principle allows the stabilization system to be compact during transport while providing full functionality when needed.
Solution Approach 2:
The ladder stabilization system transitions from a static structure to a dynamic one through the deployment of retractable legs and ground anchors. The legs can extend and retract based on ground conditions, and the anchors can be deployed to pierce the ground when needed. This dynamic capability allows the ladder to adapt to various terrain conditions (uneven ground, soft soil, sloped surfaces) while maintaining stability.
2Reliability
If a ladder extension device is added to adjust leg position, then load distribution is improved, but device complexity increases
Solution Approach 1:
The invention merges multiple functions into a single integrated device: the rail mount attaches to the ladder side rail, the retractable leg extends to adjust foot position, and the ground anchor pierces the ground for additional anchoring. These components work together as a unified system rather than separate devices, reducing overall complexity while achieving load distribution and stabilization goals.
Solution Approach 2:
The stabilization device performs multiple functions: it attaches to the ladder via rail mount, adjusts leg position through retractable mechanism, distributes load evenly across the ground, and provides anchoring through ground spikes. This multi-functionality eliminates the need for separate devices for each function, thereby managing complexity while improving reliability.
3Reliability
If ground anchors are deployed to secure ladder legs, then anchoring strength is improved, but ease of operation decreases
Solution Approach 1:
The ground anchor system is designed to be self-deploying through the foot pedal mechanism. When the user steps on the foot pedal, the anchor is automatically driven into the ground through mechanical force, eliminating the need for manual hammering or complex deployment procedures. The system serves itself by converting the user's weight into the driving force needed for anchoring.
Solution Approach 2:
The foot pedal acts as an intermediary between the user and the ground anchor. Instead of directly applying force to the anchor (which would be difficult and unsafe), the user applies force to the pedal, which then translates this force into the mechanical action needed to deploy the anchor. This intermediary mechanism simplifies operation while maintaining anchoring effectiveness.
Data Source
AI summary
A ladder stabilizing apparatus includes a mount attachable to a ladder side rail, a retractable leg translatable relative to the mount between leg retracted and foot planted positions, a leg lock movable between leg locked and unlocked positions, a retractable ground anchor translatable between anchor retracted and ground embedded positions, an anchor lock movable between anchor locked and unlocked positions, and a pedal downwardly actuatable from a raised position to a depressed position. Downward actuation of the foot pedal comprises the leg translating relative to the mount towards the foot planted position, and the ground anchor translating relative to the leg towards the ground embedded position. In leg locked position, the leg lock inhibits translation of the leg relative to the mount towards the leg retracted position. In the anchor locked position, the anchor lock inhibits translation of the ground anchor relative to the leg toward the anchor retracted position.