Safety Seat Back Linkage Locking for Easy Angle Adjustment
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Solution Overview
Problem
The angle of the seat back in safety seats is inconvenient to adjust and difficult to perfectly fit to a vehicle seat, especially when access is limited by the position of the occupant.
Innovation Solution
A safety seat design featuring a base, seat back, locking member, linkage member, and lock driving member, with a handle device and elastic reset mechanism, allowing for easy angle adjustment and secure fitting to a vehicle seat through multiple operation ports and linkage connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the seat back angle is fixed, then the structure is simple and stable, but it is difficult to perfectly fit to a vehicle seat and inconvenient to adjust
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed seat back angle into an adjustable one. The seat back is equipped with a locking member that can engage with different locking positions along the guiding groove, allowing the seat back angle to be dynamically adjusted to different positions and locked in place, thereby adapting to different vehicle seat configurations and user needs.
Solution Approach 2:
The patent applies segmentation by dividing the adjustment mechanism into independent functional components: a locking member with multiple locking positions, a guiding groove that defines the adjustment path, and a driving mechanism. This segmentation allows each component to perform its specific function independently while working together to achieve the overall adjustment capability.
2Ease of operation
If the locking mechanism is operated from the back portion, then the structure is simple, but it is impossible to access the back portion and operate the angle when a child is seated
Solution Approach 1:
The patent applies the intermediary principle by introducing a linkage mechanism that acts as a mediator between the front operating handle and the rear locking member. The linkage transmits the operating force from the front to the rear, enabling the user to adjust the seat back angle from an easily accessible position without requiring direct access to the locking mechanism at the back.
Solution Approach 2:
The patent applies dimensionality change by extending the operation interface from the rear dimension to the front dimension. Instead of requiring the user to reach to the back of the seat, the operating handle is positioned at the front where it can be easily accessed, and the linkage mechanism transfers this front-dimension operation to the rear-dimension locking mechanism.
3Reliability
If the locking member is directly connected to the base, then the structure is simple, but it cannot achieve multi-position locking and secure fitting
Solution Approach 1:
The patent applies universality by designing the locking member to perform multiple functions: it acts as both a locking element that engages with locking positions and a transmission element that is driven by the linkage mechanism. The single locking member integrates these functions, achieving reliable multi-position locking without requiring separate locking and actuating 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
Facilitates easy and secure adjustment of the seat back angle, ensuring a tight fit to the vehicle seat, enhancing usability and compatibility.
Implementation Method 1
the reset elastic member is connected between the handle device and the base, and the reset elastic member is used for driving the handle device to reset, so that the locking member is locked to the seat back
Data Source
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AI summary
The present invention relates to the technical field of seats and provides a safety seat. The safety seat provided by the present invention includes: a base, a seat back, a locking member, a linkage member and a lock driving member. The seat back is hinged to the base, and the seat back is provided with lock holes adapted to the locking member. The locking member is movably connected to the base, the lock driving member is mounted on the base, and the lock driving member is in transmission connection with the locking member via the linkage member. According to the safety seat provided by the present invention, it is easy to adjust the angle of the seat back, and it can ensure that the seat back can be tightly fitted to a vehicle seat after the safety seat is mounted.