Reverse-Mounted Touchpad Assembly for Confined Space Ergonomics
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Solution Overview
Problem
Conventional laptop touchpads are centrally located, causing users to extend their arms laterally, leading to elbow interference and discomfort, especially in confined spaces like airplanes, where legroom is limited and neighboring space is restricted.
Innovation Solution
A modular assembly with a touchpad on one side and 'mouse buttons' on the reverse side, allowing users to operate cursor controls with their arm extended forward, reducing elbow intrusion and improving comfort in cramped environments by attaching to the laptop's display panel or base and providing power and communication options through cables or wireless interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the touchpad is centrally located on the laptop, then the laptop structure is simple and compact, but the user's elbows interfere with neighbors in adjacent seats when using the touchpad
Solution Approach 1:
The cursor control functionality is segmented into a separate modular assembly that can be detached from the main laptop body. This assembly includes the touchpad and buttons positioned to allow users to extend their arms forward rather than outward, eliminating elbow interference with neighbors while maintaining all essential cursor control functions.
Solution Approach 2:
A separate modular assembly acts as an intermediary between the user and the laptop's cursor control system. This intermediate device positions the touchpad and buttons at an optimal location for comfortable operation in confined spaces, while connecting to the laptop through communication ports or wireless interfaces.
2Ease of operation
If the touchpad and buttons are placed on the same side, then the device structure is simple, but the user cannot operate both controls simultaneously with one hand
Solution Approach 1:
The touchpad and buttons are positioned on opposite sides of the modular assembly, utilizing the third dimension (depth/thickness) of the device rather than only horizontal spacing. This allows the user's thumb and fingers to simultaneously access both controls from the same hand, improving operational efficiency without requiring excessive horizontal space.
Data Source
AI summary
An assembly for attachment to a portable computer is described including a touchpad and associated buttons where the touchpad is mounted on one surface of the assembly and the associated “mouse” buttons are mounted on the reverse surface, the two surfaces facing in substantially opposite directions. The buttons are mounted in close proximity to the reverse-mounted touchpad such that the user can operate both the touchpad and the buttons simultaneously with the thumb and one or more fingers of the same hand. In one embodiment, the touchpad faces away from the user and is operated by a finger that is not the user's thumb. In another embodiment, the touchpad faces the user and is operated by the user's thumb. For all embodiments, the associated “mouse buttons” are mounted facing in the reverse direction relative to the touchpad.