Vehicle Headrest Support Device Compact Structural Integration
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Solution Overview
Problem
Existing headrest support devices for vehicle seats are complex in structure, large in size, and require multiple components due to their design, which includes a main frame formed by joining metal plate members and a latch plate that protrudes, necessitating a special tool for assembly and additional cover material.
Innovation Solution
A headrest support device with a simplified structure and compact design, featuring a support member coupled to a seatback frame, a rotatable pillar structure, and strategically positioned coupling portions that allow for stable and compact arrangement of the headrest, minimizing the number of components and eliminating the need for a special tool or extra cover material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the main frame is formed by joining two metal plate members by crimping, then the headrest support device achieves structural strength, but a special tool is required for assembly and the structure becomes complex
Solution Approach 1:
The invention integrates the latch plate into the main frame as a unified structure, eliminating the need for separate joining operations. The main frame and latch plate form an integrated component that reduces assembly complexity while maintaining structural strength through the unified design rather than through joining operations requiring special tools.
2Adaptability or versatility
If the latch plate protrudes out of the main frame to selectively secure the main frame to the pillar structure, then the headrest can be angularly adjusted and secured, but the cover material must cover both the main frame and latch plate, increasing the number of components and size
Solution Approach 1:
The latch plate is integrated into the main frame structure, forming a unified component rather than a separate protruding element. This integration allows the cover material to simply cover the main frame without requiring additional coverage for a separate latch plate, thereby reducing the number of components while maintaining the angular adjustment and securing functionality.
3Reliability
If the latch plate protrudes out of the main frame, then the headrest support device achieves selective securing capability, but the device becomes large in size requiring extensive cover material
Solution Approach 1:
The latch plate is merged with the main frame to form an integrated structure, eliminating the need for the latch plate to protrude as a separate component. This integration reduces the overall device size and minimizes the area requiring cover material while preserving the selective securing capability through the integrated latch mechanism.
4Reliability
If multiple component parts are used in the headrest support device, then the device achieves stable support and angular adjustment, but the structure becomes complex and the size increases
Solution Approach 1:
The invention combines multiple components into integrated structures, specifically merging the latch plate with the main frame to form a unified component. This reduction in the number of separate parts simplifies the overall structure while maintaining stable support and angular adjustment capabilities through the integrated design.
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 solution provides a stable and compact headrest support device that is easier to assemble and manufacture, with a reduced number of components, resulting in a simpler and more efficient design that maintains the functionality of angular adjustment.
Implementation Method 1
a pillar base portion (25) extending laterally and supported by the support member so as to be rotatable around an axial line of the pillar base portion
Data Source
AI summary
Provided is a simple and compact headrest support device. The headrest support device (20) comprises a support member (22) coupled to a frame (2) of a seatback (1), and a headrest pillar structure including a pillar base portion (25) extending laterally and supported by the support member so as to be rotatable around an axial line of the pillar base portion, and a pair of pillar main body portions (26) extending substantially vertically from the pillar base portion substantially in parallel to each other in a laterally spaced apart relationship and connected to a headrest (24), wherein the support member is coupled to the frame at at least one coupling portion (34) disposed between the two pillar main body portions in front view in a headrest upright condition where the headrest is positioned above the seatback.