Safety Seat Guide Groove Locking for Compact Posture Adjustment
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Solution Overview
Problem
Existing seat posture adjustment devices for child safety seats are complex in structure, occupy large space, and risk misalignment during adjustment, leading to potential failure in resetting the locking mechanism during accidents.
Innovation Solution
A seat posture adjustment device featuring a support rod inserted into a guide groove on the seat support, with a locking member on the rod that moves to lock or unlock the seat body and support, ensuring alignment and smooth resetting through a compact design with elastic members and a pull plate mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the locking member is placed in a special box with a transmission mechanism between the seat body and seat support, then the posture adjustment function is realized, but the device complexity and space occupation increase
Solution Approach 1:
The patent extracts the locking member from the traditional box-type transmission mechanism and places it directly on the support rod. This simplifies the structure by eliminating the need for a special box and complex transmission mechanisms, while maintaining the posture adjustment function through the locking member's direct interaction with limit holes on the guide groove.
Solution Approach 2:
The patent combines the locking member with the support rod, where the locking member is hollow and sleeved on the support rod. This merging reduces the number of separate components and simplifies the overall structure, eliminating the need for a separate box and transmission mechanism while achieving the same posture adjustment functionality.
2Reliability
If the locking member is placed in a special box with a transmission mechanism between the seat body and seat support, then the posture adjustment function is realized, but the overall volume of the seat body and seat support increases
Solution Approach 1:
The patent removes the bulky box-type transmission mechanism from the design and extracts only the essential locking function, which is achieved through a compact locking member on a slender support rod. This dramatically reduces the overall volume occupied by the adjustment device while preserving the posture adjustment capability.
Solution Approach 2:
The locking member is designed as a hollow structure sleeved on the support rod, creating a nested configuration. This nesting approach minimizes the space required for the adjustment mechanism, allowing the locking component to occupy minimal volume while still providing the necessary functional capability.
3Ease of operation
If the locking member retracts from the seat body and seat support during adjustment, then the posture can be changed, but the alignment between seat body and seat support cannot be ensured
Solution Approach 1:
The patent introduces the guide groove as an intermediary element that guides the support rod's movement. The guide groove's arc-shaped trajectory ensures that the support rod moves along a predetermined path, maintaining proper alignment between the seat body and seat support during posture adjustment, while still allowing the locking member to retract and extend freely along this guided path.
Solution Approach 2:
The guide groove is pre-formed with a specific arc-shaped trajectory that anticipates and pre-determines the correct movement path of the support rod. This preliminary structural arrangement ensures that during posture adjustment, the alignment between seat body and seat support is automatically maintained without requiring active control or additional alignment mechanisms.
4Ease of operation
If the locking member retracts from the seat body and seat support during adjustment, then the posture can be changed, but the locking member cannot be reset successfully during accidents
Solution Approach 1:
The guide groove acts as a mediator that ensures the support rod follows a predetermined arc-shaped trajectory during movement. This guided path ensures that even during accidental impacts, the support rod returns to its original position along the same trajectory, enabling successful resetting of the locking member by guiding it back into proper alignment with the limit holes.
Solution Approach 2:
The arc-shaped guide groove is pre-configured to define the exact movement trajectory required for successful resetting. This preliminary structural design ensures that during posture adjustment and subsequent resetting, the support rod automatically follows the correct path, guaranteeing that the locking member can be reset successfully even after accidental disruptions.
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 solution improves the adjustment performance and reliability by maintaining alignment between the seat body and support, reducing complexity and space occupation, and ensuring smooth resetting of the locking mechanism.
Implementation Method 1
the elastic member is pushed by the elastic member to move along the support rod to realize locking or unlocking between the seat body and the seat support
Data Source
AI summary
The present disclosure relates to a seat posture adjustment device and a safety seat. The seat posture adjustment device comprises a locking member (5), a support rod (3) arranged on a seat body (1) and a guide groove (4) formed in a seat support (2), wherein the support rod (3) is inserted into the guide groove (4) to connect the seat body (1) and the seat support (2), and the support rod (3) is movable along the guide groove (4) to realize the posture adjustment of the seat body (1), and the locking member (5) is arranged on the support rod (3) and movable relative to the support rod (3) to realize locking or unlocking between the seat body (1) and the seat support (2). The locking member is arranged on the support rod which guides the locking member, and the support rod still has a connecting effect in an unlocking state, so that the locking member is reset more smoothly and accurately.