Telescopic Frame Automatic Folding Mechanism

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Solution Overview

Problem

Existing foldable bicycles and electric vehicles have complex frame structures that are time-consuming and inconvenient to fold, requiring multiple parts and complex mechanisms.

Innovation Solution

A telescopic frame with symmetrically disposed guide rails on the front and rear frames, connected via a telescopic device that allows sliding and automatic folding without auxiliary parts, utilizing rib portions, guide rail grooves, sliding blocks, and roller mechanisms to reduce friction and ensure smooth operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a complex connecting mechanism with multiple parts is used to connect the front and rear frames, then the folding function is achieved, but the structure becomes complex and the folding process becomes time-consuming

Engineering Contradiction:
Improvefolding convenienceVSAvoidframe structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the guide rail and guide groove into a single integrated component rather than using separate connecting parts. The first guide rail is directly formed with the first guide groove, eliminating the need for additional auxiliary parts and simplifying the overall structure while maintaining the folding function.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The guide rail structure serves multiple functions simultaneously: it guides the sliding motion during folding, provides structural support, and enables the telescopic movement. This multi-functional design reduces the number of specialized components needed in the system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If multiple auxiliary parts are used to enable folding, then the folding function is achieved, but the operational time increases

Engineering Contradiction:
Improvefolding speedVSAvoidfolding time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

By combining the guiding and connecting functions into a single integrated guide rail structure, the patent eliminates the need for multiple auxiliary parts that would need to be sequentially engaged during folding, thereby reducing the overall folding time and improving operational efficiency.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of manufacture

If a simple frame structure is used, then the structure is easy to manufacture, but the automatic folding capability is lost

Engineering Contradiction:
Improveframe manufacturing simplicityVSAvoidautomatic folding capability
Core Design Contradiction:
Ease of manufactureVSExtent of automation

Solution Approach 1:

The patent integrates the automatic folding mechanism directly into the frame structure through the telescopic device and guide rail system, eliminating the need for complex external mechanisms. This allows the frame to maintain simplicity and ease of manufacture while achieving automatic folding capability.

Inventive Principle:
Principle #5Merging (Combining)

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 telescopic frame simplifies the folding process, enabling automatic folding and unfolding of the vehicle frames with reduced operational complexity and friction, making it more convenient and efficient.

Implementation Method 1

roller mechanisms to reduce friction and ensure smooth operation

Methodology Applied
Scientific EffectRolling friction: Roller

Data Source

PatentUS8978806B2Telescopic frame
Publication Date: 2015.03.17 GUANGDONG PRESTIGE TECHNOLOGY COMPANY LIMITED
  • US8978806B2 patent drawing
  • US8978806B2 patent drawing
  • US8978806B2 patent drawing

AI summary

A telescopic frame is disclosed, which is applicable to a foldable bicycle or foldable electric vehicle, and includes a front frame, a rear frame and a telescopic device. First guide rails are symmetrically disposed on two sides of the front frame, second guide rails are symmetrically disposed on two sides of the rear frame, and the first guide rails and the second guide rails are fitted together and slidably connected. The telescopic device is fixed on the rear frame, and an output end of the telescopic device is fixed on the front frame to drive the front frame to be unfolded or folded relative to the rear frame. The telescopic frame is simple in structure and capable of being automatically folded.