Telescopic Pole Locking and Damping Mechanism for Stability Control

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Solution Overview

Problem

Existing telescopic pole assemblies lack effective mechanisms for simultaneous locking and damping, leading to spontaneous displacement and instability, particularly in utility units like cooler bars, which can result in accidents or damage.

Innovation Solution

A combined locking and damping mechanism featuring a housing with a locking stud chamber and a damping chamber, where locking studs and friction enhancing members are biased to project laterally and engage with the outer segment, providing secure locking and controlled movement by generating friction forces, preventing spontaneous displacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a telescopic pole assembly uses a simple locking mechanism without damping, then the device complexity is reduced, but the pole becomes unstable and prone to spontaneous displacement

Engineering Contradiction:

ImprovestabilityVSAvoidmechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the locking mechanism and damping mechanism into a single integrated assembly. The locking studs engage with locking openings to secure the telescopic pole, while friction enhancing members simultaneously provide damping by creating friction forces against the outer segment. This merging of functions into one mechanism maintains stability without proportionally increasing complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The housing structure serves multiple functions: it contains the locking studs for engagement, accommodates the friction enhancing members for damping, and provides structural support. This multi-functionality reduces the need for separate components, addressing the contradiction between reliability and complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If friction enhancing members are added to provide damping, then spontaneous displacement is prevented, but the device complexity increases

Engineering Contradiction:

ImprovestabilityVSAvoidmechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The damping function is merged with the locking mechanism by integrating friction enhancing members into the same housing that contains the locking studs. This combination allows the system to provide both locking and damping functions without requiring entirely separate mechanisms, thus limiting the increase in complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The friction enhancing members are nested within the housing structure alongside the locking studs. The damping chamber is integrated into the existing housing, allowing the damping components to be contained within the space already allocated for the locking mechanism, thereby minimizing additional complexity.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Reliability

If locking studs are biased to laterally project for secure locking, then the locking reliability is improved, but the ease of operation decreases due to requiring intentional effort to change positions

Engineering Contradiction:

Improvelocking reliabilityVSAvoidease of position change

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The locking studs are designed with biasing members that provide dynamic engagement - they are spring-loaded to automatically engage with locking openings when the telescopic pole is extended, ensuring reliable locking. However, the same biasing mechanism allows the studs to be easily disengaged by applying intentional force in the opposite direction, maintaining ease of operation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The biasing members automatically push the locking studs into engagement with the locking openings without requiring manual intervention. The system self-locks when extended, improving reliability while maintaining ease of operation because the user only needs to apply force to overcome the spring bias for disengagement.

Inventive Principle:

Principle #25Self-service

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 mechanism ensures secure locking and controlled expansion/contraction of telescopic tubular couples, preventing accidental collapse or sudden movements, thus enhancing safety and stability in utility units by requiring intentional effort to change positions.

Implementation Method 1

displacing the telescopic tubular couple between the open position and the closed position entails friction forces between the at least one friction enhancing member and the inside surface of the outer segment

Methodology Applied

Scientific EffectFriction: Friction