Vehicle Seat Tilt Restriction Mechanism Space Optimization
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Solution Overview
Problem
Vehicle seats with tilt restriction mechanisms occupy excessive space due to the arrangement of movable portions, which hinders design improvements and space efficiency.
Innovation Solution
A vehicle seat design featuring a tower frame that extends upwards and is offset from a fixed frame, with a recliner allowing rotation and a tilt restriction mechanism that maintains the back frame at a specified angle, utilizing an abutting member to contact a restriction member for maintaining the tilt angle, thereby reducing the occupied area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tilt restriction mechanism is arranged on the first side along the seat-width direction, then the back frame can be tilted by a predetermined angle, but the area occupied by movable portions increases
Solution Approach 1:
The abutting member is arranged on the second side along the seat-width direction (opposite side from the first side) instead of placing the entire tilt restriction mechanism on the first side. This spatial redistribution across different dimensions reduces the concentrated area occupied by movable portions while maintaining the tilt function through the abutting member's contact with the restriction member.
2Area of stationary object
If the abutting member is arranged on the second side along the seat-width direction, then the area occupied by movable portions is reduced, but the mechanism complexity increases
Solution Approach 1:
The tilt restriction mechanism is segmented into distinct components: the restriction member that rotates with the back frame, and the abutting member that is immovable relative to the cushion frame. This segmentation allows the mechanism to be distributed across different spatial locations (first side and second side), reducing area occupation while managing complexity through functional separation.
Data Source
AI summary
A vehicle seat includes: a fixed frame; a tower frame arranged at a position offset from the fixed frame toward a first side along a seat-width direction; a recliner arranged between the tower frame and the fixed frame; a tilt restriction mechanism arranged opposite to the recliner relative to the fixed frame; and an abutting member arranged on a same side as the tilt restriction mechanism relative to the fixed frame.