Two-Part Vehicle Seat Mounting for Easier Reconfiguration

Solution Overview

Problem

Existing motor vehicle seats with sliding and locking mechanisms are heavy, making them difficult to handle and reconfigure, especially when extracting or turning around for space optimization.

Innovation Solution

The seat is split into a support and an armchair, with the support and chair having separate anchoring and locking mechanisms, allowing independent manipulation and reduced weight, enabling easier handling and versatility in mounting orientations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the seat is designed as a single integrated unit with sliding and locking mechanisms, then the seat provides stable mounting and positioning, but the weight increases to 30 kilograms making handling difficult

Engineering Contradiction:

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The seat system is divided into two independent parts: a support structure and a chair. The support includes anchoring means and locking mechanisms for mounting to the floor, while the chair includes the seating structure. This segmentation allows the heavy locking and anchoring functions to be concentrated in the support, enabling the chair to be lighter and easier to handle while maintaining stable mounting when assembled.

Inventive Principle:

Principle #1Segmentation

2Reliability

If the seat includes sliding rails and locking mechanisms for fixed positioning, then the seat remains secured during transport, but the complexity of the seat increases

Engineering Contradiction:

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The locking and sliding mechanisms are transferred from the chair to the support structure. The support includes second locking means for securing to the floor rails and second operating means for releasing these locks. This segmentation simplifies the chair design while maintaining secure positioning capabilities through the support's mounting system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The support structure serves multiple functions: it provides the mounting interface to the floor, contains the locking and sliding mechanisms for positioning, and offers anchoring points for the chair. This multi-functionality consolidates complexity into the support rather than the chair, making the overall system more manageable.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If the seat is designed as a modular unit with multiple functions, then floor space can be freed for loading, but the weight makes extraction and reconfiguration difficult

Engineering Contradiction:

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

By separating the chair from the support, the system enables flexible reconfiguration. The chair can be easily removed from the support and the support can be independently extracted from the floor rails, allowing various interior arrangements. The reduced weight of the chair makes it simple to handle during reconfiguration operations.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP4699858A1Two-part motor vehicle seat

Publication Date: 2026.02.25

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AI summary

The invention relates to a motor vehicle seat (100) comprising: - a seat (120) which includes a seat (122) and a backrest (121), and - a support (110) adapted to be mounted on a floor (12) of the motor vehicle (1) and on which the seat is mounted. According to the invention, the support includes anchoring means, and the seat includes first locking means adapted to lock onto said anchoring means to secure the seat to the support, and first manually operable means adapted to deactivate the first locking means to release the seat from the support.