Motorized Monitor Angle Adjustment Mechanism for Vehicle Seats
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Solution Overview
Problem
Occupants in rear seats of vehicles face difficulty in viewing a monitor mounted on the front seat back due to unsuitable angles and heights when the rear seat is reclined or the front seat is pushed forward, requiring manual adjustment.
Innovation Solution
A device with a motorized mechanism that automatically adjusts the angle of the monitor using a lead screw and angle adjustment bar, allowing the monitor to be rotated rearward or forward based on user input, ensuring optimal viewing angles regardless of the occupant's posture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the monitor is mounted on the front seat back at a fixed position, then the structure is simple and stable, but the viewing angle becomes unsuitable when the rear seat is reclined or the front seat is pushed forward
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed monitor mounting into a dynamically adjustable system. The monitor angle adjustment mechanism allows the monitor to rotate and change its viewing angle automatically or manually, enabling it to adapt to different rear seat positions (reclined or upright) and front seat positions (pushed forward or backward), thus maintaining viewing convenience while preserving structural stability through the bracket system
2Device complexity
If the monitor angle is fixed, then the device complexity is low, but the adaptability to different occupant positions is poor
Solution Approach 1:
The patent implements dynamics by introducing an angle adjustment mechanism that enables the monitor to rotate between different angles. This mechanism includes a motor-driven system with lead screw and nut components, or a manual crank system, allowing the monitor to adapt its viewing angle to match various occupant positions such as reclined rear seats or forward-pushed front seats, significantly improving versatility
Solution Approach 2:
The patent applies parameter changes by modifying the angular parameter of the monitor mounting. The adjustment mechanism changes the installation angle parameter of the monitor relative to the front seat back, enabling it to accommodate different viewing scenarios. The system can adjust the angle parameter to optimize viewing comfort for various seat configurations
3Extent of automation
If manual adjustment is required, then the automation level is low, but the device complexity is reduced
Solution Approach 1:
The patent implements self-service through an automated motor-driven adjustment system. The motor automatically adjusts the monitor angle based on detected seat position changes or user input, eliminating the need for manual intervention. The system includes sensors or switches that detect when adjustment is needed and automatically activate the motor to rotate the monitor to the appropriate angle, providing convenient automated operation
Solution Approach 2:
The patent replaces the purely mechanical manual adjustment system with an electromechanical system. The motor-driven lead screw mechanism substitutes for manual cranking, converting electrical energy into mechanical rotation to adjust the monitor angle. This substitution automates the adjustment process while maintaining the mechanical precision of the lead screw and nut components
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
Provides improved convenience for rear seat occupants by allowing automatic adjustment of the monitor's angle, ensuring clear viewing from any direction without the need for manual intervention.
Implementation Method 1
a lead screw that includes a lower portion rotatably connected to an output shaft of the motor, and an upper portion configured to pass through the second rotation bracket; and an ascending and descending member having a threaded hole that engages with a threaded surface of the lead screw. In particular, a rotation of the lead screw causes the ascending and descending member to ascend and descend along the lead screw
Data Source
AI summary
A device for automatically adjusting an angle of a monitor on a vehicle seat back includes: a fixation bracket on a front seat back upper-frame; a first rotation bracket on an upper portion of the fixation bracket; a second rotation bracket on a lower portion of the fixation bracket; a monitor on a front surface of the first rotation bracket; a motor on a bottom surface of the second rotation bracket; an angle adjustment bar integrally combined with a rear surface of the first rotation bracket; a lead screw, whose lower portion is connected to an output shaft of the motor, and whose upper portion passes through the second rotation bracket; and an ascending and descending member having a threaded hole such that the ascending and descending member fastened to the lead screw while being fastened to an end portion of the angle adjustment bar.