Vehicle Seat Shielding Member That Prevents Cushion Slack
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Solution Overview
Problem
Existing vehicle seats with tilting cushions suffer from a slackened shielding member appearance when the cushion is tilted down, compromising aesthetics.
Innovation Solution
A vehicle seat design featuring a shielding member with a bending middle section triggered by an inducing portion, allowing it to adjust its angle and extend/fold in response to the cushion's vertical movement, preventing slack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shielding member is set to a fixed length to shield the lower side of the seat cushion in the uppermost position, then the shielding function is improved, but the appearance deteriorates due to slack when the seat cushion is in the lowermost position
Solution Approach 1:
The shielding member is designed with a bending section that allows it to dynamically change its shape and effective length according to the seat cushion's position. The inducing portion triggers bending at specific points, enabling the shielding member to adapt its configuration between uppermost and lowermost positions, thereby maintaining both shielding function and appearance without slack
2Shape
If the shielding member is made longer to prevent slack in the lowermost position, then the appearance is improved, but the shielding function deteriorates due to excessive length in the uppermost position
Solution Approach 1:
The shielding member utilizes a bending section with an inducing portion that activates at different seat cushion positions. This dynamic mechanism allows the member to extend to prevent slack in the lowermost position while bending to maintain proper shielding function in the uppermost position, resolving the contradiction between appearance and shielding effectiveness
3Shape
If a complex mechanism is added to adjust the shielding member length dynamically, then the appearance is maintained, but the device complexity increases
Solution Approach 1:
The shielding member employs a self-adjusting mechanism where the inducing portion automatically triggers bending based on the seat cushion's position without requiring external control systems. The member serves itself by utilizing the existing movement of the seat cushion to activate the bending section, maintaining appearance quality while avoiding complex additional mechanisms
Data Source
AI summary
A vehicle seat includes a seat cushion having an upward and downward movement mechanism configured to adjust a position of the seat cushion in a range between an upper most position and a lower most position in a seat vertical direction; and a shielding member configured to bend, and shielding a lower side of the seat cushion. The shielding member includes: an upper section disposed at a lower surface side of the seat cushion; a middle section disposed at a lower side of the upper section, provided with an inducing portion serving as a trigger for bending of the shielding member, and being configured to follow a movement, in the seat vertical direction, of the seat cushion by changing a bending angle at a bending start point portion that is bent by the inducing portion; and a lower section disposed at a lower side of the middle section.