Vehicle Door Headrest Storage Layout for Stable Flat-Floor Packaging

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Solution Overview

Problem

Current storage solutions for headrests in vehicles with full-flat seat arrangements lack effective and space-efficient methods for storing headrests on the interior side of vehicle compartments, particularly on door surfaces.

Innovation Solution

A headrest storage structure featuring a headrest storage portion with adjacent headrest fixing and pillar fixing portions on the door trim, utilizing a groove for the pillar portion and a restraint member for secure storage, allowing for efficient storage without interfering with other components and minimizing occupant seating space reduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If headrest is stored in conventional locations (door armrest or seat pocket), then storage function is provided, but storage stability is insufficient and design freedom is limited

Engineering Contradiction:
Improvestorage stabilityVSAvoiddesign freedom
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The headrest storage structure is divided into two separate fixing portions: a headrest fixing portion for the headrest main body and a headrest pillar fixing portion for the pillar portion. This segmentation allows each part to be optimized independently, improving storage stability while maintaining design freedom

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The storage structure utilizes the door side surface area in the longitudinal direction of the vehicle body, transitioning from conventional single-point storage to a distributed two-dimensional arrangement. The headrest fixing portion and headrest pillar fixing portion are arranged adjacently on the door side surface, effectively using available space and improving stability

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If headrest pillar portion extends freely, then ease of installation is improved, but storage stability and space efficiency deteriorate

Engineering Contradiction:
Improveease of installationVSAvoidstorage stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The headrest pillar fixing portion is pre-configured with a groove structure on the door side surface. When the headrest is installed, the pillar portion is guided into this pre-prepared groove, which automatically positions and stabilizes it. This preliminary preparation of the fixing structure simplifies the installation process while ensuring stable storage

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If headrest storage structure is added to door side surface, then storage function is improved, but occupant seating space is reduced

Engineering Contradiction:
Improvestorage functionVSAvoidoccupant seating space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The headrest storage structure is localized to specific areas on the door side surface, using the longitudinal direction space that would otherwise be unused. By concentrating the storage function in localized fixing portions rather than extending structures into the passenger compartment, the design provides storage functionality while minimizing impact on occupant seating space

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20190118689A1Headrest storage structure
Publication Date: 2019.04.25 HONDA MOTOR CO LTD
  • US20190118689A1 patent drawing
  • US20190118689A1 patent drawing
  • US20190118689A1 patent drawing

AI summary

A headrest storage structure includes a headrest storage portion configured to store a headrest in an interior member of a vehicle door. The headrest storage portion includes a headrest fixing portion configured to store a headrest main body and a headrest pillar fixing portion configured to store a headrest pillar portion extending from the headrest main body, and the headrest fixing portion and the headrest pillar fixing portion are arranged to be adjacent to each other in a longitudinal direction of a vehicle body.