Vehicle Seat Back Falling Restriction Part
Solution Overview
Problem
In bench-seat type vehicle seats, the seat belt often excessively falls into the gap between the seat backs when an occupant is not seated, leading to inferior usability upon seating.
Innovation Solution
A falling restriction part is integrated into the vehicle interior structure to prevent the seat belt from falling into the gap between the first and second structures, comprising a convex portion protruding from the first structure towards the second structure, with a core and covering portion to restrict movement while maintaining a smooth surface for the seat belt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the seat belt is arranged between adjacent seat backs without a falling restriction part, then the device complexity is reduced, but the seat belt excessively falls into the gap between seat backs when an occupant is not seated
Solution Approach 1:
A falling restriction part is introduced as an intermediary component between the seat belt and the gap between seat backs. This part prevents the seat belt from excessively falling into the gap while maintaining a relatively simple overall structure. The falling restriction part can be integrated with existing structures such as the seat back frame or adding members, thus resolving the contradiction between preventing excessive falling and maintaining structural simplicity.
2Ease of operation
If a falling restriction part is added to prevent the seat belt from falling into the gap, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The falling restriction part is merged with existing vehicle interior structures such as the seat back frame or integrating members. By combining the falling restriction function with existing structural elements, the patent improves seat belt usability while minimizing the increase in device complexity. This merging approach allows the falling restriction part to serve dual purposes: structural support and preventing excessive falling.
3Stability of the object's composition
If the seat belt is pressed against the front side of the seat back with moderate tension, then the seat belt is held in position when an occupant is not seated, but the seat belt excessively falls into the gap between adjacent seat backs
Solution Approach 1:
The falling restriction part serves as a mediator that works in conjunction with the moderate tension on the seat belt. While the tension maintains the seat belt pressed against the seat back, the falling restriction part prevents excessive falling into the gap. This combination resolves the contradiction by allowing the seat belt to remain stable in position while preventing harmful excessive movement into the gap.
Data Source
AI summary
A vehicle interior structure including: a first structure; a second structure disposed adjacent to the first structure; and another member disposed on a design surface side of at least one of the first structure and the second structure, wherein a falling restriction part configured to restrict the other member from falling into a gap between the first structure and the second structure is provided to at least one of the first structure and the second structure.