Ladder Securing Device with Pivoting Clamp Arms
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Solution Overview
Problem
Conventional methods for securing ladders against surfaces are unreliable, often requiring additional manpower and the use of ropes, which can lead to instability and increased risk of falls, especially on uneven or sloped surfaces.
Innovation Solution
A ladder securing device with a brace, hose clamps, pivot blocks, and swivel pads that attach to a ladder and surface, allowing for stable positioning without manual holding or ropes, using a pulley and rope mechanism to secure the ladder to various surfaces like gutters, roofs, and scaffolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional methods use ropes to tie off the ladder, then the ladder can be secured without additional manpower, but the securing method becomes unreliable and dangerous
Solution Approach 1:
The device divides the securing function into separate components: a brace that attaches to the ladder, clamp arms that contact the surface, and a pulley system with rope for actuation. This segmentation allows each component to perform its specific function reliably, with the brace providing structural support and the clamp arms providing secure contact points.
Solution Approach 2:
The device introduces a mechanical intermediary system (brace and clamp arms) between the ladder and the surface, replacing the direct but unreliable rope-tying method. This intermediary mechanism translates simple rope tension into reliable clamping force through the pulley system, ensuring consistent ladder stabilization.
2Reliability
If additional individuals hold and stabilize the ladder, then the ladder remains stable during use, but additional manpower and cost are required
Solution Approach 1:
The device enables the ladder to self-stabilize through its own attached mechanism. The brace and clamp arms form a self-contained stabilization system that secures the ladder independently, eliminating the need for external personnel to manually hold or stabilize the ladder during use.
3Ease of operation
If ropes are used to secure the ladder, then the ladder can be tied off, but the method is unreliable and can lead to falls if ropes slip
Solution Approach 1:
The device uses a dynamic pulley system that allows the clamp arms to adjust and maintain contact with the surface as the ladder is positioned or as surfaces vary. This dynamic mechanism ensures continuous reliable contact rather than static rope tension that can slip or loosen.
Solution Approach 2:
The device changes the physical parameters of the securing mechanism from flexible rope tension to rigid mechanical clamping force. The clamp arms transmit force directly to the surface through their contact points, creating a more reliable connection that is less susceptible to slipping or failing under load.
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 device provides a safer, more reliable method for stabilizing ladders, eliminating the need for additional personnel and ropes, ensuring the ladder remains stable during use, thereby reducing the risk of accidents and injuries.
Implementation Method 1
a pulley disposed on the chamber and coupled to an elongated rope, wherein the rope can be eased off for pivotally moving the clamp arms enabling the upper clamp arm swivel pad and the lower clamp arm swivel pad to move towards each other
Data Source
AI summary
A ladder securing device configured to attach to a rung(s) of an extension ladder using a pair of clamps and including a pair of pivotal clamp arms for securing to a desired structure or surface to which the ladder is to be secured. The device includes a pulley connected to a rope, wherein the rope is eased off and pulled to pivotally move the clamp arms to secure to the structure. The clamp arms are connected to pivotal blocks and a plurality of torsional springs provide smooth and slow movement of the clamp arms. For providing additional support, a connecting rod connects the clamp arms and a fastener secures the clamp arms. The device allows a user to securely ascend and descend on the ladder without any additional support and thus prevents serious injury due to unstable ladders which ultimately can lead to falls.