Rotating Sliding Chair Seat for Table Positioning Assistance
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Solution Overview
Problem
Individuals with reduced mobility face challenges in positioning themselves at a table due to the need for coordinated movement of the chair, which can be physically demanding and require assistance, especially for the elderly and disabled, leading to difficulties in accessing the table for tasks like eating.
Innovation Solution
A chair equipped with a base portion and a seat portion connected by independent movement mechanisms, allowing for rotational and sliding movements without moving the base, enabling users to position themselves at a table without shifting the chair, thereby reducing physical effort and need for assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the chair is designed with fixed base and seat portions, then the structural stability is improved, but the ease of operation deteriorates for individuals with reduced mobility
Solution Approach 1:
The chair is divided into distinct base portion and seat portion that can move independently relative to each other. The base portion remains stationary while the seat portion can rotate and slide, allowing individuals with reduced mobility to position themselves at the table without moving the entire chair structure.
Solution Approach 2:
The chair incorporates dynamic movement mechanisms including rotation capability and sliding capability that allow the seat portion to change position relative to the base portion. This enables the chair to adapt to different positioning needs while maintaining overall structural stability.
2Measurement precision
If the entire chair is moved to position the individual at the table, then the positioning accuracy is improved, but the force required deteriorates for individuals with reduced mobility
Solution Approach 1:
Instead of moving the entire chair, only the seat portion is moved to the desired position. The base portion remains stationary, and the seat portion can be rotated and slid independently to achieve precise positioning at the table with minimal force required from the user.
Solution Approach 2:
The movement mechanism acts as an intermediary between the user and the chair structure. It allows the user to apply minimal force to move only the seat portion while the base portion remains stable, achieving both positioning accuracy and force reduction.
3Ease of operation
If the chair allows independent rotation and sliding of the seat portion, then the ease of operation is improved, but the device complexity deteriorates
Solution Approach 1:
The chair is segmented into base and seat portions with distinct movement capabilities. The seat portion incorporates rotation and sliding mechanisms that can be activated independently, providing ease of operation while keeping the base portion simple and stable.
Solution Approach 2:
The chair incorporates dynamic movement mechanisms including rotation capability and sliding capability that allow the seat portion to change position relative to the base portion. This enables the chair to adapt to different positioning needs while maintaining overall structural stability.
Data Source
AI summary
There is disclosed a chair (10) for positioning an individual with respect to a reference location (5), such as a table. The chair (10) comprises a base portion (12) configured to be located on a support surface (6). A seat portion (16) is mounted to the base portion (12) and is configured to receive the individual thereon. A first mechanism (21) is configured to provide rotational movement of said seat portion (16) with respect to said base portion (12). A second mechanism (25) is configured to provide sliding lateral movement of the seat portion (16) with respect to said base portion (12). The first mechanism (21) and the second mechanism (25) are activated independently to facilitate movement of the individual from a first position that is located remote from the reference location (5) to a second position that is located adjacent said reference location (5) without the need for movement of the base portion (12) with respect to the support surface.