Telescoping Pole Cramp Brake With Non-Marring Ground-Level Locking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional telescoping tube cramping brakes have pinch points and require users to stand on ladders to extend and lock the tubes, and they often cause wear and marring of the inner tube due to metallic components.
Innovation Solution
A vertically adjustable telescoping pole assembly with a cramp brake mechanism that eliminates pinch points and uses a composite nylon housing with an inner sleeve and tabs to secure the outer tube, allowing smooth operation and locking without fasteners that interfere with motion, and incorporates a non-marring brake mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional cramping brakes are used for telescoping tubes, then the locking mechanism provides secure locking, but it creates pinch points and requires users to stand on ladders to extend and lock the tubes
Solution Approach 1:
The brake mechanism is extracted from the traditional cramping brake design and repositioned to engage with the outer tube rather than the inner tube. This extraction eliminates the pinch points created by conventional cramping brakes that squeeze the inner tube, while maintaining secure locking functionality.
Solution Approach 2:
A brake shoe acts as an intermediary component between the brake mechanism and the outer tube. The brake shoe engages with a groove in the outer tube, providing a smooth non-marring locking surface that eliminates direct metal-to-metal contact and pinch points while maintaining secure locking.
2Reliability
If conventional metallic cramping brakes are used, then secure locking is achieved, but wear and marring of the inner tube occurs
Solution Approach 1:
The brake mechanism uses a composite construction with a nylon brake shoe instead of traditional all-metallic components. The nylon material provides a non-marring surface that prevents wear and damage to the outer tube while maintaining sufficient friction for secure locking. The composite material approach eliminates the wear and marring problems associated with conventional metallic cramping brakes.
3Strength
If fasteners are used to secure the brake mechanism to the outer tube, then the brake is firmly attached, but the fasteners interfere with the motion of the nested telescoping tubes
Solution Approach 1:
Fasteners are completely extracted from the brake mechanism design. Instead of using screws or other fastening elements that would interfere with tube motion, the brake mechanism is secured to the outer tube through interference fit and friction engagement, allowing smooth telescoping motion without any fasteners in the path of movement.
Solution Approach 2:
The brake mechanism secures itself to the outer tube through its own structural design. The brake body engages with the outer tube via a groove and friction fit, allowing the mechanism to attach and detach without external fasteners, maintaining both secure attachment and freedom of tube motion.
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
Enables smooth extension and collapse of telescoping poles from ground level without ladders, reduces wear on the inner tube, and provides a lightweight, robust locking mechanism.
Implementation Method 1
The cramp brake mechanism has a body that is secured to the outer pole of the pole assembly
Data Source
AI summary
A system with a vertically adjustable telescoping pole assembly and cramp brake mechanism includes a telescoping pole assembly with at least an outer pole and an inner pole. The pole assembly is movable bi-directionally between a closed position and an extended position. The cramp brake mechanism has a body that is secured to the outer pole of the pole assembly, and also includes a brake that releases while the pole assembly is moved to the extended position and engages when the assembly is not being moved.