Sliding Key Mechanism With Elastic Interference Fastening

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Solution Overview

Problem

The existing sliding key mechanisms in electronic devices, such as notebook computers, face challenges in maintaining a secure and stable position due to component gaps, leading to seesaw and swaying issues, which degrade the user experience by compromising the tactile feedback and control precision.

Innovation Solution

A sliding key mechanism is designed with a main body fixed inside a housing slot, featuring a sliding actuator and elastic components that bend to contact the housing, along with a hook structure and rib structures for secure engagement, ensuring tight fastening and preventing movement errors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional sliding key mechanisms are used with component gaps, then the structure is simple and easy to manufacture, but the mechanism experiences seesaw and swaying movements resulting in poor tactile feedback

Engineering Contradiction:
Improvestability of sliding key mechanismVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The elastic components are designed to be bendable, transforming from a rigid structure to a dynamic one that can deform elastically. This allows the mechanism to adapt to the slot dimensions while maintaining tight fastening, eliminating seesaw and swaying movements without requiring overly complex structural designs

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The elastic components change their physical state from straight to bent when installed in the slot. This parameter change enables the components to generate elastic force that tightens the fastening of the sliding key mechanism, improving reliability while keeping the overall structure relatively simple

Inventive Principle:
Principle #35Parameter changes

2Reliability

If elastic components are added to bend and contact the housing, then tight fastening is achieved preventing seesaw and swaying, but the device complexity increases

Engineering Contradiction:
Improvefastening tightnessVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The elastic components are integrated with the main body of the sliding key mechanism, merging multiple functions into a unified structure. This combination achieves tight fastening through elastic deformation while avoiding the need for separate, additional fastening components, thus limiting the increase in device complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The elastic components automatically bend and contact the housing when the main body is installed in the slot, generating elastic force that tightens the fastening without requiring external adjustment or additional fastening mechanisms. This self-service characteristic achieves reliable fastening while minimizing structural complexity

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

This solution effectively prevents seesaw and swaying, enhancing the tactile feedback and control precision of the sliding switch by utilizing elastic interference for secure fastening within the housing, thereby improving the user experience.

Implementation Method 1

two elastic components connected to both ends of the main body respectively, and the two elastic components being bent when the main body is fixed inside the slot on the housing so that the two elastic components contact against the housing elastically

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS8158901B2Sliding key mechanism capable of being fastened tightly due to interference generated by elastic force and related electronic device
Publication Date: 2012.04.17 WISTRON CORP
  • US8158901B2 patent drawing
  • US8158901B2 patent drawing
  • US8158901B2 patent drawing

AI summary

The sliding key mechanism includes a main body fixed inside a slot on a housing, a sliding actuator connected to a side of the main body for containing a sliding head of a sliding switch, a key portion connected to the other side of the main body for driving the sliding actuator simultaneously when the key portion slides so that the sliding actuator slides the sliding head of the sliding switch, and two elastic components connected to both ends of the main body respectively, and the two elastic components being bent when the main body is fixed inside the slot on the housing so that the two elastic components contact against the housing elastically.