Pelvic Support Seat Linkage for Adaptive Ergonomic Seating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing seating furniture lacks the ability to automatically adapt the relative position of individual partial areas of the seat surface to different seating positions, compromising ergonomically correct support.
Innovation Solution
Incorporating a pelvic support element inclined relative to the seat plane, connected to the backrest via a hinge joint, allowing synchronized pivoting and sliding movements that adjust the seat surface and backrest for optimal ergonomic support without additional structural complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pelvic support element is added to divide the seat surface, then ergonomic support is improved, but device complexity increases
Solution Approach 1:
The seat surface is divided into a front seat area and a rear pelvic support area, allowing independent movement and positioning of each segment to adapt to different seating positions and body types
Solution Approach 2:
The pelvic support element is integrated with the backrest through a hinge joint, combining two functional elements into a unified structure that moves together while maintaining independent positioning capability
2Adaptability or versatility
If the pelvic support is connected to the backrest via hinge joint, then ergonomic adaptability is improved, but structural complexity increases
Solution Approach 1:
The hinge joint connects the pelvic support to the backrest, allowing dynamic adjustment and synchronized movement between the pelvic support and backrest as the user transitions between working and resting positions
Solution Approach 2:
The hinge joint serves multiple functions: it connects the pelvic support to the backrest, allows relative movement between them, and enables synchronized positioning to accommodate different body weights and preferences
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The item (1) has a pelvic support (9) placed in a rear region of a seat surface (6) and inclined in a front working position in relation to a plane of the seat surface, and a carrying frame (2) to carry the pelvic support and pivotably movable relative to a seat frame (5) and kinematically coupled to the seat frame. A thrust bearing (13) supports the carrying frame in a displaceable and pivotably movable manner, where a carrying element (11) carries the thrust bearing, and a joint (14) connects the carrying frame to the seat frame at a trailing end portion of the seat frame.