Motor Vehicle Door Handle Cable Actuation Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing door opening devices for motor vehicles require a defined mechanical connection between the handle and the lock, which is structurally complex and costly, especially in emergency situations where power is out and mechanical operation is needed.
Innovation Solution
A cable actuating means connects the handle to the motor vehicle locking mechanism, allowing for a simple and cost-effective connection without the need for structural guides, enabling easy installation and operation of electrically operated locks during power outages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a defined mechanical connection (e.g., Bowden cable with gearwheel and rack) is used to connect the handle to the lock, then the lock can be operated mechanically in emergency situations, but the structural complexity and cost increase
Solution Approach 1:
The patent extracts the complex mechanical transmission elements (gearwheel, rack, Bowden cable) and replaces them with a direct mechanical connection. The handle is firmly connected to the locking mechanism, allowing direct force transmission without intermediate components. This simplifies the structure while maintaining emergency opening capability.
Solution Approach 2:
Instead of using a flexible cable that requires complex guidance structures, the patent inverts the approach by using a rigid direct connection. The handle component is firmly attached to the locking mechanism, transforming the connection from flexible to rigid, and from indirect to direct, thereby eliminating the need for guides and reducing structural complexity.
2Reliability
If complex mechanical structures (guides, gearwheels, racks) are used to enable mechanical operation, then emergency opening is possible, but the manufacturing cost and installation complexity increase
Solution Approach 1:
The patent removes complex mechanical transmission components (guides, gearwheels, racks) from the system. The handle is directly and firmly connected to the locking mechanism, allowing mechanical operation without intermediate transmission elements. This extraction of unnecessary components simplifies manufacturing and installation.
Solution Approach 2:
The patent merges the handle component directly with the locking mechanism through a firm connection. This consolidation eliminates the need for separate mechanical transmission components and their associated guides, reducing both manufacturing steps and installation complexity while maintaining full mechanical operation capability.
3Ease of operation
If electrical transducers and sensors are used for normal operation, then convenience is improved, but the system becomes vulnerable to power drops requiring complex mechanical backups
Solution Approach 1:
The patent creates a universal connection that serves both electrical and mechanical functions. The same firm mechanical connection between the handle and locking mechanism that enables mechanical operation also supports the electrical transducer system. This multi-functional design allows the system to operate in both electrical mode (normal) and mechanical mode (emergency) without requiring separate systems, thereby reducing overall complexity.
Data Source
AI summary
A device for opening a door or flap on a motor vehicle, comprising a handle that a user can grip from outside the motor vehicle, a motor vehicle locking mechanism, and a means for actuating the locking mechanism using the handle, said actuating means being a cable that is placed between the handle and the motor vehicle locking mechanism.