Vehicle Seat Link Projecting Portion Collision Support
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Solution Overview
Problem
Existing seat apparatuses in vehicles are prone to deformation during collisions, which can hinder the movement of occupants and increase the risk of injury due to inadequate support mechanisms.
Innovation Solution
A seat apparatus with a plurality of links attached to a base member, a seat cushion frame supported by these links, and a connecting member, featuring a projecting portion that contacts the side walls to provide additional support and absorb impact, thereby reducing deformation and mitigating the reaction force on occupants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional seat apparatus structure is used, then the device complexity is low, but the strength and reliability during collisions are insufficient leading to deformation
Solution Approach 1:
The link is divided into multiple portions including a first end portion, second end portion, and projecting portion. This segmentation allows the link to provide both structural support and collision protection functions, resolving the contradiction between strength and device complexity by integrating multiple functions into a segmented single component.
Solution Approach 2:
The projecting portion extends in a direction different from the main link axis, creating a three-dimensional structure that provides additional support during collisions. This dimensional extension allows the link to resist forces from multiple directions without requiring additional separate components, thus improving strength while maintaining simplicity.
2Reliability
If additional support mechanisms are added to prevent deformation, then the reliability improves, but the device complexity increases
Solution Approach 1:
The link serves multiple functions: it supports the seat cushion frame during normal operation and provides collision protection when needed. By making the link multi-functional, the invention improves reliability without adding separate dedicated components, thus avoiding increased device complexity.
Solution Approach 2:
The collision protection function is merged into the link structure itself through the projecting portion, rather than being implemented as a separate mechanism. This merging of functions into a single component achieves improved reliability while maintaining simplicity in the overall device structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The seat apparatus effectively suppresses deformation of the seat cushion frame during collisions by distributing the load and reducing the impact force applied to occupants, enhancing safety and mobility.
Implementation Method 1
the first end portion is configured to be rotatably connected to the base member directly or indirectly about a first rotation axis
Implementation Method 2
the second end portion is configured to be rotatably connected to the side wall directly or indirectly about a second rotation axis
Data Source
AI summary
A seat apparatus includes plural links configured to be attached to a base member, a seat cushion frame supported by the links, and a connecting member. The seat cushion frame includes a pair of side walls connected by the connecting member, and a contact portion on at least one of the pair of side walls. At least one of the links includes a first end portion, a second end portion, and a projecting portion projecting from the second end portion. The first end portion is rotatably connectable to the base member directly or indirectly about a first rotation axis, the second end portion is rotatably connectable to the side wall directly or indirectly about a second rotation axis, and the projecting portion is configured such that at least when the seat cushion frame is moved to the highest position, a predetermined portion of the projecting portion faces the contact portion.