Vehicle Seat Spring Mounting Simplifies Assembly
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Solution Overview
Problem
Existing vehicle seat designs require complex engagement mechanisms for S-shaped springs, increasing manufacturing costs and assembly workload.
Innovation Solution
A vehicle seat design featuring a simplified mounting structure with a vehicle occupant support member anchored to the seat cushion frame using a rear hook member and front hook member, which engages the anchor to stabilize the position and reduce assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If engagement portions are provided on the seat cushion frame for each S-shaped spring, then the S-shaped springs can be securely engaged, but the manufacturing cost increases and assembly workload increases
Solution Approach 1:
The patent merges the engagement function for multiple S-shaped springs into a single engagement portion on the seat cushion frame. Instead of providing separate engagement portions for each spring, one engagement portion engages multiple springs simultaneously, reducing structural complexity while maintaining secure engagement. This is achieved by designing the engagement portion with a configuration that can accommodate and secure multiple spring ends in a unified manner.
Solution Approach 2:
The engagement portion is designed to serve multiple functions: it engages multiple S-shaped springs simultaneously, provides lateral positioning, and secures the vehicle occupant support member to the seat cushion frame. This multi-functional design eliminates the need for separate engagement mechanisms for each spring, reducing both manufacturing cost and assembly complexity while maintaining reliability.
2Reliability
If each S-shaped spring is hooked to corresponding engagement portions, then secure mounting is achieved, but the work load of assembly worker increases
Solution Approach 1:
The patent combines multiple individual hooking operations into a single assembly action. By providing one engagement portion that secures multiple S-shaped springs simultaneously, the assembly process requires fewer discrete steps. The assembly worker performs one engagement operation instead of multiple separate hooking operations, significantly reducing assembly workload and increasing productivity while maintaining mounting security.
Solution Approach 2:
The engagement portion is designed to automatically secure multiple S-shaped springs in a single operation. The structure allows the springs to be engaged collectively without requiring precise individual positioning or multiple adjustment steps, enabling the assembly process to be more self-service oriented and reducing the skill level and time required by assembly workers.
3Stability of the object's composition
If multiple engagement points are used to secure the vehicle occupant support member, then positional stability is improved, but the manufacturing cost and assembly complexity increase
Solution Approach 1:
The patent combines multiple engagement functions into a single engagement portion that secures multiple S-shaped springs simultaneously. This unified engagement structure provides adequate positional stability for the vehicle occupant support member while avoiding the complexity of multiple separate engagement points. The single engagement portion is designed with sufficient capacity to maintain stability through collective engagement of multiple springs.
Data Source
AI summary
Provided is a vehicle seat (S) including a vehicle occupant support member (20) that can be assembled to the seat cushion frame (F1) with ease. A vehicle occupant support member extends between a front cross frame member (15) and a rear cross frame member (16) for supporting a vehicle occupant from below and fitted centrally with a child seat anchor (17), and a rear end part of the vehicle support member is provided with an anchor engagement portion (23B) for engaging a part of the anchor to prevent lateral movement of the vehicle support member. The vehicle occupant support member includes a plurality of spring members (21), a rear hook member (23) connected to the rear ends of the spring members and hooked onto a rear cross frame member, and a front hook member (22) connected to the front ends of the spring members and hooked onto a front cross frame member.