Modular Headrest Bracket Integrating Locking Member
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Solution Overview
Problem
Conventional headrest control systems are complex, with a high number of components, difficult assembly, increased weight, and high manufacturing costs, due to the need for multiple links and separate assembly of horizontal and vertical parts, which complicates operation and increases the distance from the stay rod to the front lower edge.
Innovation Solution
A modularized headrest control apparatus with a bracket and locking member that includes a guide rod, sliding member, and fixing part with notches, allowing for simplified assembly and operation by dividing the headrest cover into two parts and integrating the locking member within the bracket, reducing the number of components and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple links (first to fourth links) are used to control headrest movement, then the headrest position can be controlled, but the number of components increases remarkably, making assembly difficult and increasing weight and manufacturing costs
Solution Approach 1:
The patent combines multiple separate links (first, second, third, and fourth links) into a single integrated link structure. This merging eliminates the need for multiple separate components while maintaining the headrest position control function, thereby reducing assembly complexity and component count.
Solution Approach 2:
The single integrated link performs multiple functions that were previously distributed across four separate links. It simultaneously provides structural support, enables rotational movement, controls headrest positioning, and interfaces with the guide mechanism, making one component do the work of four.
2Ease of manufacture
If the headrest is designed with separate horizontal and vertical parts that must be assembled, then the structure can be modularized, but the assembly process becomes extremely complicated and cannot be applied to conventional stay rods
Solution Approach 1:
The patent merges the previously separate horizontal and vertical parts into a single integrated stay rod design. This allows the headrest to be applied to conventional stay rods while maintaining modular manufacturing benefits, significantly simplifying the assembly process.
Solution Approach 2:
While maintaining a single integrated stay rod, the patent segments the headrest cover into two separate parts that can be manufactured independently and then easily assembled. This segmentation enables modular manufacturing without complicating the overall assembly process.
3Ease of manufacture
If the distance from the stay rod to the front lower edge is increased to accommodate separate horizontal and vertical parts, then assembly is possible, but the distance from the stay rod to the front lower edge becomes excessively large
Solution Approach 1:
By merging the horizontal and vertical parts into a single integrated stay rod structure, the patent eliminates the need for excessive distance between components. The integrated design allows proper assembly while maintaining a compact overall dimensions.
4Reliability
If a cover is installed at the fourth link, then the headrest structure is complete, but the number of components increases and manufacturing costs rise
Solution Approach 1:
The patent integrates the cover function into the existing link structure rather than adding it as a separate component. The cover is incorporated as part of the single integrated link assembly, maintaining structural completeness while reducing component count.
Data Source
AI summary
The present invention relates to a headrest controlling apparatus, and more particularly, to a headrest controlling apparatus which includes a headrest cover, a bracket installed on a stay rod, and a locking member installed in the bracket to fix a position of a headrest, wherein the headrest cover includes a stay rod coupling part to which the stay rod is rotatably coupled, and thus the headrest controlling apparatus can minimize a distance from the stay rod to a front lower edge of the apparatus, can be easily assembled due to the modularized bracket and locking member, and can be easily operated due to increased precision of the locking member.