Adjustable Armrest Table Attachment With Dovetail Width Locking
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Solution Overview
Problem
Existing adjustable attachments for sofa or chair armrests are either size-specific, require complex mechanisms, or need special tools and skills for adjustment, making them difficult to assemble and use.
Innovation Solution
An adjustable armrest attachment with a top element and track element featuring dovetail-shaped tenons and mortises for continuous width adjustment, allowing easy fitting on various armrests without tools, and a screw mechanism for locking and easy disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If adjustable mechanisms are added to fit different armrest widths, then adaptability is improved, but device complexity increases
Solution Approach 1:
The attachment device is divided into multiple adjustable components including a top element, track element, and vertical members that can independently move relative to each other. This segmentation allows each component to be adjusted separately to fit different armrest widths without requiring a complex overall mechanism.
Solution Approach 2:
The patent implements dynamic adjustability through movable vertical members that can slide along the track element and adjustable top element positioning. This allows the device to adapt to different armrest widths while maintaining relative simplicity through straightforward mechanical movements rather than complex mechanisms.
2Adaptability or versatility
If adjustment mechanisms are added to fit different armrest sizes, then adaptability is improved, but ease of operation deteriorates
Solution Approach 1:
The attachment device enables users to perform adjustments themselves without requiring special tools or skills. The vertical members can be manually positioned along the track and the top element can be adjusted to the desired width, allowing end-users to easily customize the fit for their specific armrest.
Solution Approach 2:
By dividing the adjustment function into separate, simple components (track element with grooves, movable vertical members, adjustable top element), each part can be easily manipulated independently, making the overall adjustment process simple and user-friendly.
3Adaptability or versatility
If complex mechanisms are used for adjustment, then adaptability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The device is constructed from separate, simple components (top element, track element, vertical members) that can be manufactured independently using basic manufacturing processes. This segmentation allows each component to be produced separately and then assembled, avoiding the need for complex manufacturing operations.
Solution Approach 2:
The patent achieves adaptability through simple geometric parameters such as the width of grooves in the track element and the positioning of vertical members, rather than through complex mechanisms. These parameter changes can be easily implemented during manufacturing to provide adjustability without increasing manufacturing complexity.
Data Source
AI summary
The present disclosure relates to a universal armrest attachment having a top element and a track element, wherein the top element includes a vertical member perpendicularly mounted to a table member, and a horizontal member, wherein the horizontal member comprises parallel mortises/grooves. The track element, on the other hand, comprises a second vertical member and a second horizontal member, wherein the second horizontal member comprises tenons/protrusions that cooperatively slide on the parallel mortises/grooves of the horizontal member of the top element such that distance between the vertical member of the top element and vertical member of the track element can be adjusted based on width of the armrest and then fixed using a screw or similar means, the mortises/grooves and tenons/protrusions being so configured to then wedge against each other, thereby securing the armrest attachment in place.