Lap Desk with Stepped Arm Support Surfaces for Adjustable Height
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Solution Overview
Problem
Existing arm resting lap desks lack adjustability in supporting height, failing to accommodate diverse user needs.
Innovation Solution
The lap desk features stepped supporting surfaces and removable platforms, allowing users to choose between different supporting surfaces and adjust to their needs, with one surface flush with the desk body and another for arm support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single fixed supporting surface is used, then the structure is simple, but it cannot accommodate different user needs for supporting height
Solution Approach 1:
The supporting platform is divided into multiple stepped surfaces at different heights. Each step creates a separate supporting surface, allowing users to select different heights based on their needs. This segmentation transforms a single fixed surface into multiple adjustable surfaces without requiring complex mechanical adjustment mechanisms.
Solution Approach 2:
Instead of providing adjustability through vertical movement in one dimension, the invention adds height variation by creating stepped surfaces that extend in the horizontal plane. This dimensional approach allows multiple supporting heights to be integrated into a single static platform structure.
2Adaptability or versatility
If removable supporting platforms are added, then user customization is improved, but manufacturing complexity increases
Solution Approach 1:
The supporting platform is designed as separable components that can be removed and reattached. This segmentation allows the platforms to be manufactured independently and assembled during production, simplifying the manufacturing process while enabling customization. Users can remove platforms to create different configurations or use them separately.
Solution Approach 2:
The removable platforms serve multiple functions: they provide arm support when attached, can be removed for customization or cleaning, and potentially used as separate components. This multi-functionality justifies the added manufacturing steps by providing versatile utility across different use cases.
Data Source
AI summary
An arm resting lap desk having a desk body and supporting legs; at least one side of the desk body has a supporting platform which is stepped to form a first supporting surface and a second supporting surface; the first supporting surface is positioned lower than the second supporting surface; the first supporting surface is flush with an upper surface of the desk body to form a first supporting plane. Two supporting surfaces are provided so that user can choose different supporting surfaces to support an arm according to different needs.