Vehicle Seat Frame Rack Pinion Dynamics
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Solution Overview
Problem
Conventional vehicles face limitations in expanding or contracting luggage space and moving seat locations, leading to inefficient utilization of interior space, as well as the need for separate partitions between passenger and luggage spaces.
Innovation Solution
A vehicle seat frame that includes a main frame connected to the vehicle for forward and rearward movement, with an adjustable height, an auxiliary frame for rotation to act as a seat or partition, and a rail system with rack and pinion gears for precise movement, allowing the seat frame to be unfolded or folded to optimize space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fixed seats and separate partitions are installed, then structural stability is ensured, but interior space flexibility and utilization are limited
Solution Approach 1:
The seat frame is designed to perform multiple functions: it can be unfolded to form a seat for passengers and folded to act as a partition between passenger and luggage spaces. This multi-functionality eliminates the need for separate partition structures while maintaining structural stability, thereby improving interior space flexibility without proportionally increasing device complexity.
Solution Approach 2:
The seat frame incorporates movable connections that allow it to dynamically change its configuration between folded (partition) and unfolded (seat) states. This dynamic capability enables the structure to adapt to different interior space requirements, resolving the contradiction between fixed structural stability and flexible space utilization.
2Volume of stationary object
If the luggage space is expanded by folding the third row seat, then cargo capacity increases, but passenger seating capacity decreases
Solution Approach 1:
The third row seat frame is designed with dynamic folding capability, allowing it to transition between unfolded (seating) and folded (luggage space expansion) states. This dynamic configuration enables the vehicle to adapt between passenger transport mode and cargo transport mode, resolving the contradiction between luggage space volume and seating capacity.
Solution Approach 2:
The seat frame's configuration parameter (folded vs. unfolded state) can be changed based on operational requirements. When the parameter changes from unfolded to folded, luggage space volume increases while seating capacity decreases, and vice versa. This parameter change capability allows flexible adaptation between different usage scenarios.
3Adaptability or versatility
If separate partitions are installed to divide passenger and luggage spaces, then space partitioning is achieved, but device complexity and installation requirements increase
Solution Approach 1:
The seat frame serves dual purposes: it provides seating when unfolded and acts as a space partition when folded. By integrating the partition function into the seat frame itself, the need for separate partition structures is eliminated, thereby achieving space partitioning capability without increasing device complexity or installation requirements.
Solution Approach 2:
The partition function is merged with the seat frame structure. When the seat frame is folded, it naturally forms a partition between the passenger space and luggage space. This merging of functions eliminates the need for additional separate partition components, reducing overall device complexity while maintaining effective space division.
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
Enables flexible expansion or contraction of passenger and luggage spaces, efficient partitioning of interior space, and comfortable seating with the ability to convert between seat and partition functions, enhancing overall space utilization without the need for separate partitions.
Implementation Method 1
A rack gear may be disposed on an inner surface of the rail, a pinion gear may be disposed in the main frame fitted in the rail, and a location of the main frame may be moved by an engagement relationship of the rack gar and the pinion gear.
Data Source
AI summary
A seat frame of a vehicle including: a main frame, one end of which is connected to the vehicle to be movable forwards and rearwards and an opposite end of which is connected to a loop of the vehicle such that a height of the main frame is adjusted upwards and downwards; an auxiliary frame provided in an interior of the main frame and connected to the main frame to be rotatable with respect to the main frame by a predetermined angle so as to be unfolded and folded such that the auxiliary frame acts as a seat when being unfolded and acts as a partition that partitions an interior space of the vehicle when being folded; and a rail, in which the main frame is fitted and which acts as a path, along which the main frame moves to the front and rear sides of the vehicle.