Folding Seat Locking Mechanism for Multi-Position Space Utilization
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Solution Overview
Problem
Existing folding seats in vehicles have complex components that increase weight and maintenance costs, and are limited in their ability to utilize space due to restricted folding directions.
Innovation Solution
A folding seat design that includes a seat frame, a rotatably coupled seat back frame, a locking portion with a lever-operated latch, and a leg frame that can be rotated and folded, allowing for versatile positioning and simplified structure, enabling easier folding and space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex components are used to fold the seat frame and fix positions, then the folding function is achieved, but the weight of the seat increases and maintenance cost increases
Solution Approach 1:
The locking portion is divided into separate functional elements: a locking protrusion on the seat back frame, a corresponding locking groove on the seat frame, and a cable-operated release mechanism. This segmentation allows each component to be simple and lightweight while collectively achieving the folding and locking function.
Solution Approach 2:
The complex multi-point locking system is extracted and replaced with a single locking protrusion and groove mechanism. The cable system is extracted as a separate operational element, allowing the main structural components to remain simple and lightweight.
2Adaptability or versatility
If complex components are used to fold the seat frame and fix positions, then the folding function is achieved, but the maintenance cost increases
Solution Approach 1:
The locking function is extracted into a simple protrusion-groove mechanism that can be easily manufactured and replaced. The cable system is extracted as a separate, easily replaceable component, reducing maintenance complexity and cost.
Solution Approach 2:
The locking protrusion and groove are designed as simple, inexpensive components that can be easily replaced if worn. The cable system uses standard, readily available cable components that are inexpensive and easy to replace.
3Device complexity
If the folding direction is limited, then the structure is simple, but the utilization of space around the folding seat is limited
Solution Approach 1:
The seat back frame is designed with dynamic positioning capability through the locking portion that can engage at multiple positions along the seat frame. The cable-operated locking mechanism allows the seat back to be positioned at various angles and heights, maximizing space utilization while maintaining a relatively simple structure.
Solution Approach 2:
The locking portion is designed to provide multiple functions: it locks the seat back at different positions, allows folding in multiple directions, and can be operated by a single cable system. This multi-functionality increases space utilization without proportionally increasing structural complexity.
4Weight of moving object
If a simple locking structure is used, then the weight is reduced, but the ability to fix positions of seat back frame and seat frame may be compromised
Solution Approach 1:
The locking protrusion and groove are designed with asymmetric geometries that provide stable engagement in the locked position. The protrusion fits into the groove with a specific orientation that prevents accidental disengagement while maintaining a simple, lightweight structure.
Solution Approach 2:
The locking protrusion and groove are pre-positioned on the seat back frame and seat frame respectively, ensuring that when the components come together during folding, the locking engagement occurs automatically without requiring additional adjustment or complex mechanisms.
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
The design reduces the weight of the folding seat, enhances space utilization, and allows for convenient folding in multiple directions, improving the folding seat's functionality and adaptability to various vehicle types.
Implementation Method 1
a locking portion coupled at a first side thereof to the seat back frame and rotatably coupled at a second side thereof to the seat frame
Implementation Method 2
a leg frame rotatably coupled to the seat frame and connected to the stopper by a cable
Data Source
AI summary
Proposed is a folding seat that is capable of being folding to various positions by controlling a lever and the folding seat is capable of improving utilization of space around the folding seat. According to an embodiment of the present disclosure, the folding seat includes: a seat frame; a seat back frame cross-arranged in back of the seat frame, the seat back frame having a first side rotatably coupled to the seat frame; and a locking portion coupled at a first side thereof to the seat back frame and rotatably coupled at a second side thereof to the seat frame at a position between the seat frame and the seat back frame, wherein the locking portion is configured to be inserted into a rear portion of the seat frame or to be separated from the seat frame according to an operation thereof.