Load support structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing load support structures in seating systems face challenges such as high construction complexity and cost, leading to heavy and unhealthy posture encouragement, as well as the need for adjustable spring systems to accommodate different body weights.
Innovation Solution
A load support structure featuring two supporting arms with a guide element and connecting links that allow for kinematic movement, enabling the seat to adapt to user weight without the need for complex spring systems, thus providing comfortable seating for individuals of varying weights without requiring adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex spring systems are used to accommodate different body weights, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent employs dynamic elements including a rotating seat pan that can tilt and a backrest with variable inclination angles. The seat pan rotates about a horizontal axis to adapt to different user weights and preferences, while the backrest inclination can be adjusted independently. This dynamic configuration allows the seating structure to automatically adapt to various body weights without complex spring systems, resolving the contradiction between adaptability and device complexity
Solution Approach 2:
The seating structure is divided into independent functional segments: a seat pan, a backrest, and supporting arms with linking members. Each segment can move and adjust independently - the seat pan can rotate, the backrest can incline, and the supporting arms can pivot. This segmentation allows each component to contribute to weight adaptation through simple geometric movements rather than requiring a complex integrated spring system
2Adaptability or versatility
If adjustable spring systems are implemented, then adaptability is improved, but ease of operation deteriorates due to required adjustments
Solution Approach 1:
The seating structure performs self-adjustment through passive mechanical means. When a user sits down, their body weight automatically causes the seat pan to rotate and the backrest to incline to appropriate angles through the action of gravity and the geometric configuration of the supporting arms and linking members. No manual adjustment mechanisms, springs, or active control systems are needed - the structure serves itself by automatically adapting to the user's weight and posture requirements
3Stability of the object's composition
If rigid backrest structures are used, then stability is improved, but object-generated harmful factors worsen by encouraging unhealthy rounded-back posture
Solution Approach 1:
The backrest is designed with variable inclination capability rather than being fixed rigid. It can adjust its angle relative to the seat pan, allowing it to adapt to different user preferences and body types. This dynamic adjustment enables the backrest to provide proper lumbar support and maintain healthy spinal alignment, preventing the rounded-back posture problem associated with rigid fixed-angle backrests while retaining structural stability through its supporting arms
Data Source
Figure 1a~1b
Figure 2
Figure 3
AI summary
A load support structure (1) comprising: a first beam (6) laterally spaced from a second beam (7), each comprising first and second beam members (6a, 6b, 7a, 7b) spaced apart to form a gap therebetween, said first and second beam members (6a, 6b, 7a, 7b) comprising a first material, wherein the first and second beams (6, 7) are each configured to deform as each of the first and second beams (6, 7) is bent from an upright position to a reclined position; and a plurality of linking members (12, 212) bridging said gap and having first and second end portions (216, 218) coupled to said first and second beam members (6a, 6b; 7a, 7b), wherein at least some of said plurality of linking members (12, 212) comprise a second material different than said first material, and wherein said at least some of said plurality of linking members (12, 212) are put in tension as said first and second beams (6, 7) are moved from said upright position to said reclined position.