Vehicle Seat Locking Mechanism for Stable Position Fixation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle seat adjustments lack locking mechanisms that securely fixate and secure various positions, limiting their functionality and user-friendliness.
Innovation Solution
A vehicle seat design featuring a frame part with a detachable and lockable front end on the chassis, a seat part adjustable via a front rocker, and a central locking device between the seat part and frame part, allowing for three stable positions: an upright use position, a horizontal functional position, and a storage position, with interlocking mechanisms to facilitate easy switching between these.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional vehicle seat adjustments are used, then the seat can be adjusted to various positions, but the positions are not securely fixed and lack reliable locking mechanisms
Solution Approach 1:
The locking mechanism automatically engages and disengages based on the seat's position during folding operations. The lock activates when the seat back is folded forward and automatically releases when the seat is in the upright position, eliminating the need for manual locking operations while ensuring secure position fixation.
Solution Approach 2:
The locking system transitions between locked and unlocked states dynamically based on the seat's configuration. The lock is engaged during storage/folding operations and disengaged during normal use, providing reliability only when needed without compromising operational simplicity.
2Adaptability or versatility
If multiple positions are provided for the vehicle seat, then functionality is enhanced, but the adjustment mechanism becomes more complex and difficult to operate
Solution Approach 1:
The seat is divided into functionally independent segments: the seat back that can be folded forward independently, and the seat pan that can be adjusted relative to the seat back. This segmentation allows each part to perform its specific function without interfering with the other, simplifying the overall adjustment mechanism while providing multiple positions.
Solution Approach 2:
The locking mechanism dynamically adapts to the seat's configuration, being automatically engaged when the seat back is folded forward (storage position) and automatically disengaged when the seat is upright (use position). This dynamic behavior provides versatile positioning without requiring manual intervention for locking.
3Volume of moving object
If the seat back is folded forward into horizontal position, then storage space is increased, but the seat part may interfere with the folding motion
Solution Approach 1:
The seat is segmented into the seat back and seat pan as independent movable parts. The seat back can be folded forward to horizontal position while the seat pan remains adjustable and can be positioned to clear the folding path, eliminating interference without requiring complex coordinated mechanisms.
Solution Approach 2:
The seat pan is adjusted forward and downward in advance before the seat back folding operation. This preliminary adjustment creates sufficient clearance for the seat back to fold forward into the horizontal storage position without interference from the seat part.
Data Source
AI summary
A vehicle seat includes: a frame part, which is lockable in its rear region on a rear foot or on the chassis side and is pivoted in a front hinge in a swiveling manner; a seat back pivoted in a seat back pivot on the frame part in a foldable manner; and a seat part for accommodating a user, which is adjustable downward into a lowered position when the seat back is folded forward. The seat part may be interlocked with the frame part in its lowered position, whereby the front lock of the frame part is released. Three positions may be set: a use position for accommodating a user, a functional position, in which the seat back is folded forward, and a storage position, which is adjustable from the functional position by releasing the rear lock of the frame part, interlocking the frame part with the seat part and folding forward about a front rocker.