Vehicle Headrest Wing Frames with Pneumatic Angle Adjustment
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Solution Overview
Problem
Existing headrest systems for vehicles lack the ability to finely adjust the angle of the wing frames, which are essential for providing optimal comfort and support to passengers.
Innovation Solution
The headrest apparatus incorporates air pockets between the rear frame and the wing frames, which can be expanded by injecting air to fold the wing frames, and contracted by discharging air to return them to their original position, allowing for precise adjustment of the wing frame angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wing frame angle is fixed in the related art, then the structure is simple, but the comfort and support for passengers cannot be customized
Solution Approach 1:
The patent uses air pockets filled with gas to control the folding and unfolding of wing frames. By injecting or discharging air into the air pockets, the wing frames can be adjusted to different angles, providing customizable support for passengers while maintaining a relatively simple structure without complex mechanical adjustment mechanisms
Solution Approach 2:
The wing frames are designed to be dynamically adjustable rather than fixed. The frames can transition between folded and unfolded states based on passenger needs, allowing the headrest to adapt to different positions and provide optimal support for various passenger preferences
2Measurement precision
If mechanical adjustment mechanisms are added to fine-tune wing frame angles, then adjustment precision improves, but device complexity increases
Solution Approach 1:
Instead of using complex mechanical adjustment mechanisms, the patent employs air pockets that can be precisely controlled by air injection and discharge. This pneumatic system allows for fine-tuning of wing frame angles without adding mechanical complexity, achieving precise adjustment through controlled air pressure changes
Solution Approach 2:
The patent changes the physical state parameter of the gas in the air pockets (from deflated to inflated state) to control the wing frame position. By adjusting the amount of air in the pockets, precise angle control is achieved without mechanical linkages, reducing overall device complexity
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
This solution enables the wing frames to be folded and unfolded with precision, providing enhanced comfort and stability for vehicle passengers by allowing for customizable support around the head.
Implementation Method 1
air pockets provided between the rear frame and the wing frames and configured to be expanded by injected air to press the wing frames so that the wing frames are folded
Implementation Method 2
elastic members coupled to the hinge shafts and configured to elastically support the wing frames
Data Source
AI summary
A headrest apparatus includes a front frame configured to support an occiput, a rear frame at least partially connected to the front frame and provided at an interval from the front frame, wing frames connected to the front frame by hinge shafts, provided at two opposite sides of the front frame, and configured to be folded about the hinge shafts, elastic members coupled to the hinge shafts and configured to elastically support the wing frames, and air pockets provided between the rear frame and the wing frames and configured to be expanded by injected air to press the wing frames so that the wing frames are folded.