Motorized Wing-Out Headrest With Lead Screw Angle Retention
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Solution Overview
Problem
Existing wing-out headrests are manually operated, causing inconvenience and lack sufficient supporting force to maintain the adjusted position of wing-out pads, leading to potential return to the original position during use.
Innovation Solution
An electric wing-out headrest system featuring a motor with a lead screw, sliders, and a wing-out link to automatically adjust the forward-and-rearward rotation of wing-out pads, ensuring convenient operation and enhanced support by automatically adjusting the angle based on the occupant's head position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is used to adjust wing-out pads, then device complexity is reduced, but ease of operation deteriorates
Solution Approach 1:
The patent replaces the manual mechanical adjustment system with an electric motor-driven system. The motor (110) drives a lead screw (112) that converts rotational motion into linear motion of the first slider (120), which then moves the second slider (130) and wing-out link (140) to automatically adjust the wing-out frame (150) angle, eliminating the need for manual grabbing and rotating operations.
2Reliability
If friction torque hinge is used for wing-out pad rotation, then device complexity is reduced, but reliability deteriorates
Solution Approach 1:
The patent replaces the friction torque hinge mechanism with an electric motor-driven lead screw system. The motor provides controlled rotational force that is converted to precise linear movement through the lead screw, offering more reliable and stable positioning compared to the friction-based hinge system that could not adequately withstand pressing forces.
Solution Approach 2:
The patent introduces dynamic adjustment capability through the motor-driven system, allowing the wing-out pads to be adjusted to optimal angles based on occupant position and preferences, rather than relying on static friction-based positioning. The system can actively maintain and adjust the angle as needed.
3Productivity
If manual adjustment is used, then ease of operation is maintained, but productivity deteriorates
Solution Approach 1:
The electric motor system enables automatic adjustment of the wing-out pads without requiring the occupant to manually grab and rotate them. The motor (110) autonomously drives the adjustment mechanism, saving time and effort while improving the overall efficiency and productivity of the headrest system.
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 electric system provides convenient operation, improved head support, and prevents the wing-out pads from returning to their original position, enhancing user experience and safety by maintaining the adjusted angle effectively.
Implementation Method 1
a motor (110) having a lead screw (112)
Implementation Method 2
an electric wing-out headrest including a motor (110)
Data Source
AI summary
An automatically operatable electric wing-out headrest includes a motor having a lead screw configured to adjust forward-and-rearward rotation of wing-out pads respectively mounted on the opposite sides of a headrest body, a first slider coupled to the lead screw so as to be movable upwards and downwards, a second slider configured to contact the first slider so as to be movable forwards and rearwards, and a wing-out link connected to the second slider to rotate a wing-out frame.