Adjustable Tablet Chair for Left- and Right-Handed Seating
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Solution Overview
Problem
Conventional tablet arm chairs are often designed for either right- or left-handed users, leading to inefficiencies in seating arrangements and excess unused chairs, as they lack adjustable features to accommodate both handedness and varying occupant sizes.
Innovation Solution
A chair design with a pivotally mounted tablet arm that can rotate 180° or more and a writing tablet that can move longitudinally, allowing for adjustable positioning to suit both right- and left-handed users, along with a seating element that can pivot for easy entry and exit, accommodating different sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the writing tablet is fixed on either the right or left side of the seat occupant, then the chair structure is simple, but it cannot accommodate both right-handed and left-handed occupants
Solution Approach 1:
The writing tablet is made dynamically adjustable through multiple degrees of freedom. The tablet arm pivots at the chair support structure to switch between left and right sides, while the tablet itself pivots relative to the tablet arm for longitudinal adjustment. This dynamic configuration allows a single chair to adapt to both right-handed and left-handed occupants, resolving the contradiction between versatility and structural simplicity.
2Adaptability or versatility
If the writing tablet is fixed in position, then the chair structure is simple, but it cannot accommodate various sized occupants
Solution Approach 1:
The tablet positioning system incorporates dynamic adjustment capabilities through pivoting connections. The tablet arm pivots relative to the chair support structure, and the writing tablet pivots relative to the tablet arm, enabling longitudinal movement toward and away from the occupant. This allows occupants of various sizes to adjust the tablet to their preferred position, achieving adaptability without requiring complex mechanical systems.
3Adaptability or versatility
If separate chairs are provided for right-handed and left-handed occupants, then each chair is optimized for its specific user, but the facility requires excessive number of chairs
Solution Approach 1:
The chair design implements universality by enabling a single chair to serve both right-handed and left-handed occupants through the adjustable writing tablet mechanism. The tablet arm can pivot to position the writing surface on either the left or right side of the occupant, allowing one chair to replace what would traditionally require two separate chairs, thereby reducing the total quantity of chairs needed in a facility.
4Ease of operation
If the tablet arm is fixed in position, then the manufacturing is simple, but the ease of operation for different users is reduced
Solution Approach 1:
The tablet arm mounting incorporates pivoting connections that provide dynamic positioning capability while maintaining manufacturing simplicity. The pivoting mechanism allows the tablet arm to rotate relative to the chair support structure and the tablet to rotate relative to the tablet arm, enabling easy adjustment for different users without requiring complex assembly procedures or specialized manufacturing processes.
Data Source
AI summary
A chair including a writing tablet that can be used with both a right handed and a left handed seat occupant. The chair includes a writing tablet that is supported on a tablet arm. The tablet arm is pivotable beneath the seating element of the chair such that the tablet arm can be positioned on either the right side or left side of the user. The writing tablet is pivotally mounted to the tablet arm such that the writing tablet can pivot toward and away from the seat occupant. The writing tablet is further movably mounted to the tablet arm such that the writing tablet can move toward and away from the seat occupant. The seating element of the chair is pivotably mounted to a support structure including chair legs and preferably caster wheels.