Vehicle Door Latch Locking Member Guide Mechanism
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Solution Overview
Problem
Existing vehicle door latch systems apply unnecessary force to components, leading to potential damage and increased maintenance costs, and have complex structures.
Innovation Solution
A vehicle door latch system with a locking member spring providing elastic force opposite to external force, a rotatable locking guide member, and a cam-part with a stopping slot, simplifying the structure and enhancing durability through a driving unit with a motor and gear system for automatic door closure and child locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional vehicle door latch system is used, then the door locking function is provided, but unnecessary force is applied to components causing damage and high maintenance costs
Solution Approach 1:
A guide member is introduced as an intermediary component between the locking member and the housing. The guide member includes a guide groove that constrains the movement path of the locking member, ensuring that force is applied only in the intended direction. This mediator prevents lateral or excessive forces from being transmitted to other components, thereby resolving the contradiction between providing locking function and avoiding unnecessary force on components.
Solution Approach 2:
The guide groove structure is designed beforehand to preemptively control and distribute forces during operation. By establishing the geometric constraints of the guide groove in advance, the system prevents excessive force application before it can cause damage, cushioning the protective effect against component stress and wear.
2Reliability
If a conventional vehicle door latch system is used, then the door locking function is provided, but the structure becomes complicated
Solution Approach 1:
The guide member combines multiple functions into a single component: it provides movement guidance through the guide groove, constrains the locking member path, and prevents excessive force application. By merging these functions into one integrated part rather than using separate components for each function, the system achieves reliable locking while reducing overall structural complexity.
Solution Approach 2:
The guide member serves multiple purposes simultaneously: guiding the locking member's movement, defining the force application direction, and protecting other components from excessive stress. This multi-functional design eliminates the need for additional specialized components, thereby simplifying the overall system structure while maintaining reliable locking functionality.
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 system reduces component stress, lowers maintenance costs, and simplifies the structure while enabling smooth operation and automatic door closure with enhanced durability and safety features.
Implementation Method 1
a locking member spring applying an elastic force to the locking member in the opposite direction of an external force when the locking member is moved by the external force
Data Source
AI summary
The present invention relates to a vehicle door latch system, more particularly, relates to a vehicle door latch system comprising: a locking member spring applying an elastic force to the locking member in the opposite direction of an external force when the locking member is moved by the external force; a locking guide member rotatably installed in a housing; and a cam-part formed in a locking member for guiding the locking guide member and formed with a stopping slot; so that the structure of the device becomes simple, and at the same time, releasing of the locking member is prevented when the latch is rotated by the main gear even when the locking member is moved by the same main gear used for the latch.