Mat Mounting Structure with Detachable Bushing for Vehicle Seat Back

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Solution Overview

Problem

Existing mat mounting structures in vehicle seats are inflexible and difficult to adapt to multiple types of mats with different shapes, limiting productivity due to specified dimensions and angles of guide wires and penetration holes.

Innovation Solution

A mat mounting structure that includes a guide wire with a straight part and a detachable bushing with a penetration hole, allowing for easy attachment and detachment from a seat back frame, enabling the use of various mat specifications without requiring significant changes to the seat back frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the penetration hole and guide wire are integrally formed with specified dimensions and angles, then the guide wire moves smoothly in the penetration hole, but it becomes difficult to attach multiple types of mats having different shapes

Engineering Contradiction:

Improveability to attach multiple mat typesVSAvoidstructure complexity of penetration hole

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The penetration hole structure is segmented into two independent components: the hole itself in the seat back frame and the bushing that can be attached to it. This segmentation allows the bushing to be customized for different mat types while the frame remains unchanged, resolving the contradiction between versatility and structural complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The seat back frame with its standardized attachment hole parts serves as a universal base that can accommodate multiple types of bushes configured for different mat specifications. This universality enables one frame to support various mat types without requiring changes to the frame structure.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If the penetration hole is processed integrally in the seat back frame, then the structure is simple, but the thickness of guide wire, insertion angle, and stroke are specified and cannot be changed

Engineering Contradiction:

Improveflexibility in guide wire specificationsVSAvoidmanufacturing flexibility

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The bushing attachment system transforms the static, fixed penetration hole into a dynamic configuration where the bushing can be attached, detached, and reconfigured. This allows the guide wire thickness, insertion angle, and stroke to be adjusted by changing the bushing rather than the frame, improving manufacturing flexibility.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The bushing acts as an intermediary component between the seat back frame and the guide wire. It mediates the connection, allowing different guide wire specifications to be accommodated through bushing selection rather than frame modification, thus maintaining ease of frame manufacturing while achieving flexibility.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If multiple types of mats are to be mounted on one seat back, then productivity improves, but the seat back frame requires multiple specified penetration holes

Engineering Contradiction:

Improveproduction efficiencyVSAvoidnumber of penetration hole specifications

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The seat back frame is designed with universal attachment hole parts that can accommodate various bushes. This universality allows one frame design to support multiple mat types, improving productivity by eliminating the need for multiple frame specifications while maintaining the capability to attach different mats.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system is segmented into the standardized frame and customizable bushes. This segmentation allows the frame to remain simple and universal while the bushes provide the specific configurations needed for different mat types, resolving the contradiction between productivity and device complexity.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11273743B1Mat mounting structure in seat back and vehicle seat

Publication Date: 2022.03.15 ADIENT US LLC

AI summary

A mat mounting structure for mounting a mat on a seat back frame in a seat back may have a guide wire attachable to the mat configured to receive a force from a back of an occupant on the seat back. The guide wire may have a straight part extending linearly in a longitudinal direction of the seat back frame on a head side or a root side of the seat back frame. A bushing including a penetration hole in which the straight part is insertable in the longitudinal direction may be included in the structure. An attachment hole part in the seat back frame may also be part of the structure. The bushing may be detachably engageable with and attachable to the attachment hole part.