Motor Vehicle Flap Locking Device Compact Assembly
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Solution Overview
Problem
Existing locking devices for motor vehicle flaps are not compact enough, given the increasing number of components in vehicles, and require complex assembly processes.
Innovation Solution
A compact locking device with a lever-style locking mechanism, utilizing a short actuating arm and a spring-loaded locking arm that can pivot to lock or unlock the flap, allowing for direct attachment to a trough body and enabling a compact design without the need for extensive installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a conventional locking mechanism with separate locking element and actuator is used, then the locking function is achieved, but the assembly size becomes large and requires extensive installation space
Solution Approach 1:
The locking element and actuator are merged into a single integrated unit where the actuator housing forms part of the locking mechanism. The actuator's bolt directly interacts with the locking arm, eliminating the need for separate locking components and reducing overall assembly size while maintaining the locking function.
Solution Approach 2:
The actuator serves multiple functions: it provides both the actuating force to move the locking arm and houses the mechanical linkage (bolt) that directly engages with the locking mechanism. This multi-functionality reduces the number of separate components needed in the assembly.
2Reliability
If a complex assembly process with multiple components is used, then the locking function is achieved, but the assembly time and manufacturing complexity increase
Solution Approach 1:
By combining the actuator and locking element into one integrated assembly, the number of parts to be manufactured and assembled is reduced. This simplifies the manufacturing process while ensuring the locking function is maintained through the direct mechanical connection between the actuator bolt and locking arm.
3Length of moving object
If a long-stroke actuator is used to move the locking element, then the locking mechanism has sufficient travel, but the actuator size and installation space requirements increase
Solution Approach 1:
Instead of achieving locking arm travel through linear actuator stroke in one dimension, the mechanism uses rotational movement of the actuator about a pivot axis. This dimensional change allows sufficient locking arm travel through arc motion rather than requiring a long linear stroke, reducing actuator size.
Solution Approach 2:
The locking mechanism uses a pivoting locking arm that rotates to engage and disengage from the actuator bolt. This dynamic rotational movement provides the necessary travel range without requiring a large-stroke actuator, as the pivot point amplifies the effective motion range.
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 provides a compact and efficient locking mechanism that simplifies assembly and reduces the number of components, ensuring the flap can be securely locked and unlocked with minimal effort, while maintaining a lightweight and interference-free operation.
Implementation Method 1
a spring-loaded locking arm that can pivot to lock or unlock the flap
Data Source
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AI summary
The aim of the invention is to provide a locking device for a motor vehicle and an assembly method. Said aim is achieved by a locking device for a flap, wherein the flap is pivotably fastened directly or indirectly to a body having a recess. The locking device comprises an actuator, which is preferably attached to the body having the recess. The locking element comprises preferably a locking arm for locking the flap and an actuating arm that is preferably short compared to the locking arm, wherein the locking arm and the actuating arm can be pivoted about a common axis. The actuator can pivot the actuating arm in order to lock and/or unlock the flap.