Sliding Assembly with Cantilever for Notebook Positioning

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Solution Overview

Problem

Conventional sliding assemblies in notebook computers require lifting the device to adjust, making operation inconvenient, especially for users like the elderly or children, and the existing designs often lead to damage or wear of slide-proof components.

Innovation Solution

A sliding assembly with a cantilever and movable member that allows the slide-proof pad to retract into the casing when pressed, enabling the notebook computer to be supported higher and slid without lifting, using a combination of a cylinder, telescopic component, and elastic element for displacement and positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If rubber strips or pads with high friction coefficient are disposed on the bottom of the casing to prevent sliding, then the slide-proof function is improved, but the ease of movement is worsened and the pads may get damaged

Engineering Contradiction:
Improveslide-proof functionVSAvoidease of movement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent employs a dynamic sliding assembly that can change its state between locked and unlocked positions. The sliding member can be moved along the groove to transition between a first position (locked, high friction) and a second position (unlocked, low friction), allowing the system to adapt its friction characteristics based on operational needs. This resolves the contradiction by enabling both secure positioning and easy movement through state transition.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sliding assembly is segmented into distinct functional components: a sliding member, a groove, and a stopper. The sliding member can be positioned at different locations within the groove, with the stopper limiting the movement range. This segmentation allows the system to provide both high friction (when the sliding member is in the locked position) and low friction (when moved to the unlocked position), resolving the contradiction between slide-proof function and ease of movement.

Inventive Principle:
Principle #1Segmentation

2Temperature

If rubber strips or pads are used to support the notebook computer at a higher position, then the heat dissipation efficiency is improved, but the ease of adjustment is worsened as the user must lift the computer to adjust position

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidease of adjustment
Core Design Contradiction:
TemperatureVSEase of operation

Solution Approach 1:

The sliding assembly enables dynamic adjustment of the notebook computer's position without requiring lifting. The sliding member can be moved along the groove to unlock the pads from the table surface, allowing the computer to be adjusted horizontally while remaining supported at the elevated position. This dynamic mechanism resolves the contradiction by maintaining heat dissipation benefits while eliminating the need for lifting during position adjustment.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sliding member acts as an intermediary mechanism between the pads and the table surface. When the sliding member is in the locked position, the pads contact the table surface to provide friction and support. When the sliding member moves to the unlocked position, it mediates the release of the pads, allowing horizontal adjustment without lifting the entire computer. This intermediary mechanism resolves the contradiction between maintaining elevation for heat dissipation and enabling easy adjustment.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If a conventional sliding assembly with sector-shaped turning travel is used, then the sliding function is improved, but the device complexity increases and the internal space of the casing must be expanded

Engineering Contradiction:
Improvesliding functionVSAvoidinternal space requirement
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The sliding assembly is segmented into simple linear components: a sliding member that moves along a groove with a stopper. This linear segmentation replaces complex sector-shaped turning mechanisms, reducing the space required within the casing while maintaining the sliding function. The groove is disposed along the length of the bottom surface, allowing the sliding member to move in a straight line rather than requiring rotational movement, thus reducing device complexity and internal space requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of using a conventional sector-shaped turning travel mechanism that requires rotational movement, the patent inverts the approach by using linear sliding movement along the groove. The sliding member moves back and forth along the groove's length rather than rotating, which simplifies the mechanism and reduces the space required within the casing. This inversion of the movement paradigm resolves the contradiction between sliding function and device complexity.

Inventive Principle:
Principle #13The other way round (Inversion)

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 easy sliding and positioning of the notebook computer without lifting, reducing wear on components and improving usability by allowing the user to push the device to adjust its position without applying excessive force.

Implementation Method 1

a telescopic component, and elastic element for displacement and positioning

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a slide-proof pad is disposed on the cantilever, such that the cantilever has a blocked position where the slide-proof pad contacts with a plane

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS7898802B2Electronic device having sliding assembly
Publication Date: 2011.03.01 MICRO STAR INTERNATIONAL CO LTD
  • US7898802B2 patent drawing
  • US7898802B2 patent drawing
  • US7898802B2 patent drawing

AI summary

An electronic device having a sliding assembly is described. A cantilever having a slide-proof pad is disposed on a bottom surface of a casing, and a sliding assembly corresponding to the cantilever is disposed in the casing. When the casing is pressed, the sliding assembly extends outside the slide-proof pad through an elastic displacement of the cantilever, such that the sliding assembly supports the casing to a higher position, and the casing slides on and contacts with a plane through the sliding assembly; alternatively, the sliding assembly retracts into the slide-proof pad, such that the slide-proof pad contacts with the plane, and the casing does not slide freely on the plane through interference contact of the slide-proof pad.