Sliding Cover Elastic Assembly for Positioning Accuracy

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Solution Overview

Problem

Conventional sidekick-esque portable devices with sliding covers face issues due to a narrow span length, limiting their ability to accommodate devices with larger span lengths and experiencing positioning deviations from manual operation.

Innovation Solution

A portable electronic device design incorporating an elastic assembly with pogo pins or springs that assists in positioning the sliding cover, providing an auxiliary force to prevent unintentional movement and ensure accurate sliding between open and closed positions, thus accommodating devices with varying span lengths and reducing manual operation-induced deviations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If a conventional sliding mechanism with a narrow span length is used, then the device structure is simple, but the device cannot accommodate big span lengths and has limited applicability

Engineering Contradiction:
Improvespan lengthVSAvoidapplicability
Core Design Contradiction:
Length of moving objectVSAdaptability or versatility

Solution Approach 1:

The patent employs a dynamic sliding mechanism where the sliding cover can move between multiple positions (fully closed, partially open, fully open) along the longitudinal axis. This dynamic capability allows the device to adapt to different span lengths and usage scenarios, resolving the contradiction between fixed structure and adaptability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sliding cover is divided into multiple sections or panels that can move independently relative to each other. This segmentation allows the mechanism to accommodate larger span lengths by distributing the movement across multiple segments, thereby increasing applicability while maintaining structural simplicity

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If manual operation is used to position the sliding cover, then the device structure is simple, but positioning deviation occurs and positioning accuracy is poor

Engineering Contradiction:
Improvepositioning accuracyVSAvoidmechanism complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent incorporates positioning sensors or detection mechanisms that provide feedback on the sliding cover's position. This feedback system detects when the sliding cover reaches predetermined positions and triggers locking mechanisms or signals the control system, ensuring accurate positioning without requiring complex manual operation

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The sliding mechanism includes self-positioning features such as magnetic attractors, mechanical stops, or cam mechanisms that automatically guide the sliding cover to precise positions during movement. These self-service elements eliminate the need for complex external positioning systems while maintaining high positioning accuracy

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If an elastic assembly is added to assist positioning, then positioning accuracy improves, but the device complexity increases

Engineering Contradiction:
Improvepositioning accuracyVSAvoidmechanism complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent introduces an elastic assembly as an intermediary element between the sliding cover and the main body. This elastic component acts as a mediator that provides restoring force to return the sliding cover to its initial position and assists positioning through elastic deformation, achieving improved positioning accuracy while adding only a simple elastic element rather than a complex mechanism

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The elastic assembly utilizes changes in elastic parameters (such as spring constant or pre-compression force) to provide the necessary positioning assistance. By adjusting these parameters, the system achieves accurate positioning without requiring complex mechanical structures, as the elastic properties can be tuned to match the specific positioning requirements

Inventive Principle:
Principle #35Parameter changes

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 elastic assembly ensures stable and precise sliding operations, preventing unintentional movement and allowing for automatic positioning, thereby addressing the limitations of conventional mechanisms and accommodating devices with larger span lengths.

Implementation Method 1

an elastic assembly further comprises a plurality of pogo pins, a pin fixture, and a plurality of fixing components, wherein the pogo pins comprise retractable pistons whose lengths are compressible due to externally applied forces

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

Another embodiment of the invention comprises an elastic assembly, which comprises at least one spring, a spring fixture, and a plurality of fixing components, wherein the spring is compressible such that the spring length is adjustable according to the externally applied force

Methodology Applied
Scientific EffectSpring elasticity: Spring

Data Source

PatentUS7907982B2Portable electronic device
Publication Date: 2011.03.15 HTC CORP
  • US7907982B2 patent drawing
  • US7907982B2 patent drawing
  • US7907982B2 patent drawing

AI summary

A portable electronic device at least includes a main body, a sliding cover, and an elastic assembly. The main body includes at least one sliding rod package. The sliding cover is disposed on the main body and is slidable between a closed position and a full-open position, and at least comprises one sliding rod. The sliding rods are slidably inserted into the sliding rod packages. The elastic assembly is connected to both the main body and the sliding cover to control the sliding cover at the closed position or the full-open position.