Touch Pad Corner Flush Alignment Adjustment Mechanism

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Solution Overview

Problem

The existing touch pads in electronic devices often have steps between their corners and the housing edges, which are perceived as low quality, aesthetically displeasing, and uncomfortable for users.

Innovation Solution

An adjustment mechanism that allows the corners of the touch pad to be selectively moved towards or away from the housing surface, making them substantially flush with the adjacent edge, thereby minimizing these steps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the touch pad is fixed rigidly to the housing, then the manufacturing process is simple, but steps are created between the touch pad corners and housing edges resulting in poor aesthetics and user comfort

Engineering Contradiction:
Improveflush alignment between touch pad corners and housing edgesVSAvoidadjustment mechanism complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The touch pad is made movable relative to the housing through an adjustment mechanism that allows corners to be selectively moved toward or away from the housing surface. This dynamic adjustment capability enables flush alignment while maintaining manufacturing simplicity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The adjustment mechanism is divided into multiple independent corner adjustments, allowing each corner of the touch pad to be adjusted separately. This segmentation enables precise control of each corner's position relative to the housing edges.

Inventive Principle:
Principle #1Segmentation

2Shape

If the touch pad corners are made flush with housing edges using adjustment mechanism, then aesthetic quality and user comfort improve, but device complexity increases

Engineering Contradiction:
Improveflush appearance of touch pad with housingVSAvoidadjustment mechanism structure
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The adjustment mechanism applies local quality changes by allowing selective adjustment of individual touch pad corners. Each corner can be independently positioned to achieve flush alignment with the housing edges, creating a locally optimized appearance.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The adjustment mechanism acts as an intermediary between the touch pad and housing, enabling precise positioning of the touch pad corners relative to the housing edges. This intermediary structure facilitates the flush appearance while managing the complexity through a dedicated adjustment system.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3218789B1Touch pad adjustment
Publication Date: 2020.04.29 HEWLETT PACKARD DEVELOPMENT COMPANY LP
  • EP3218789B1 patent drawingFigure 1
  • EP3218789B1 patent drawingFigure 2
  • EP3218789B1 patent drawingFigure 3

AI summary

Examples of adjustment of a touch pad are disclosed herein. One example includes a touch pad adjacent an edge of an opening defined by a housing of an electronic device and a bracket to secure a first side of the touch pad to the housing adjacent the edge. This example also includes an adjustment mechanism to selectively move a first corner and a second corner of the touch pad that are opposite the first side in either a direction toward or away from a front surface of the housing so that the first and second corners are substantially flush with the adjacent edge.