Self-Reset Headrest Adjusting Mechanism with Clamping Tables
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Solution Overview
Problem
Existing automobile headrests have complex designs, are costly, and suffer from complex force transmission issues during unlocking, leading to damage and difficulty in control.
Innovation Solution
A self-reset adjusting mechanism with a mounting base, rotatable adjusting member, first and second reset members, and a limiting member with clamping tables, allowing for automatic unlocking and simple, controllable adjustment with high impact resistance and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing adjustable headrests use button unlocking mechanism, then the headrest can be adjusted, but the force transmission process becomes complex and the unlocking force is difficult to control
Solution Approach 1:
The patent extracts and eliminates the complex button unlocking mechanism and its force transmission process. Instead, it uses a direct manual adjustment mechanism where the adjusting member can be freely moved between clamping tables without complex intermediate transmission components, thereby simplifying the overall structure while maintaining adjustability.
Solution Approach 2:
The patent segments the adjustment mechanism into independent functional components: the adjusting member, the limiting member with multiple clamping tables, and the reset member. This segmentation allows each component to perform its specific function independently, eliminating the need for complex force transmission while enabling easy adjustment and automatic resetting.
2Ease of operation
If existing adjustable headrests use button unlocking mechanism, then the headrest can be adjusted, but the structure becomes complex and costs increase
Solution Approach 1:
The patent removes the expensive button unlocking mechanism and complex force transmission components, retaining only the essential adjustment function. This extraction of unnecessary components directly reduces manufacturing complexity and cost while preserving the core adjustability feature.
Solution Approach 2:
The reset member automatically resets the adjusting member to its initial position after adjustment, eliminating the need for complex locking and unlocking mechanisms. This self-service feature simplifies the structure and reduces manufacturing costs by removing unnecessary control components.
3Adaptability or versatility
If the adjusting member is rotated freely, then the adjustment range is large, but the resetting control becomes difficult
Solution Approach 1:
The reset member is designed to automatically engage with the adjusting member and reset it to the initial position (lowest clamping table) after the user completes adjustment. This self-service resetting mechanism provides precise control over the resetting process while maintaining free rotation during adjustment, resolving the contradiction between large adjustment range and controlled resetting.
Solution Approach 2:
The reset member provides mechanical feedback to the adjusting member, guiding it back to the predetermined initial position. This feedback mechanism ensures controlled resetting while allowing free adjustment in both directions, maintaining adaptability while improving resetting control.
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 mechanism simplifies the headrest structure, reduces costs, and provides a large adjustment range with automatic unlocking, ensuring strength and ease of assembly while minimizing damage and improving control during operation.
Implementation Method 1
a first reset member mounted between the adjusting member and the mounting base, the first reset member producing, during rotation of the adjusting member, an acting force in a direction opposite to a rotation direction of the adjusting member to reset the adjusting member
Implementation Method 2
a second reset member mounted between the limiting member and the mounting base, the second reset member producing, during rotation of the limiting member, an acting force in a direction opposite to a rotation direction of the limiting member to reset the limiting member
Implementation Method 3
when the limiting member is rotated to the limit position, the second reset member being deformed to produce an acting force in a direction the same as the rotation direction of the limiting member to cause the limiting member to be in the limit position
Data Source
AI summary
The invention relates to a self-reset adjusting mechanism, including: a mounting base; an adjusting member rotatably mounted on the mounting base; a first reset member mounted between the adjusting member and the mounting base; a limiting member rotatably mounted on the mounting base, the limiting member being provided with, corresponding to the adjusting member, a plurality of clamping tables at different heights, and the position of the adjusting member being adjusted by clamping the adjusting member on the clamping tables corresponding to the limiting member; and a second reset member mounted between the limiting member and the mounting base, when the limiting member is rotated to the limit position, the second reset member being deformed to produce an acting force in a direction the same as the rotation direction of the limiting member to cause the limiting member to be in the limit position, and in this case, the first reset member resetting the adjusting member and exerting a reset acting force on the limiting member, so that the second reset member is restored and the limiting member is reset. The self-reset adjusting mechanism of the invention simplifies a core mechanism of a headrest while ensuring the strength of the headrest, has a simple structure, occupies a small space, and has a large adjustment range and a high impact resistance strength.