C-Shaped Attachment Element for Vehicle Lock Hinge
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Solution Overview
Problem
Existing attachment elements for connecting locking bars with actuation levers in motor vehicle locks are not cost-efficient and require complex installation processes, often failing to provide a secure connection under high operational stresses.
Innovation Solution
A C-shaped attachment element with hinge-type connection and tapered or cone-shaped limbs that can be easily installed by spreading and locking onto the locking bar and actuation lever, featuring elastic and resilient properties for simplified assembly and a secure, space-saving design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional block-shaped attachment elements with multiple pin parts and hook-shaped locking elements are used, then the connection security is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The attachment element is divided into two limbs that can be moved independently, allowing the locking mechanism to be simplified while maintaining security. The limbs are separated and can be positioned independently to engage with the locking bar and lever opening.
Solution Approach 2:
Multiple functions are merged into a single C-shaped attachment element. The element combines the locking bar connection, the lever opening engagement, and the locking mechanism all in one integrated component, eliminating the need for separate pin parts and hook-shaped elements.
2Reliability
If traditional attachment elements with multiple locking components are used, then the connection security under high stress is improved, but the ease of manufacture deteriorates
Solution Approach 1:
The attachment element is segmented into two limbs connected by a hinge, allowing each limb to be manufactured separately and then assembled through simple hinge connection, reducing overall manufacturing complexity while maintaining structural integrity under stress.
Solution Approach 2:
The locking mechanism uses tapered or cone-shaped ends of the limbs that change geometry during insertion, transforming the assembly process into a simple push-fit operation that is easy to manufacture and assemble while providing secure locking under high stress.
3Reliability
If traditional attachment elements with complex locking mechanisms are used, then the connection security is improved, but the installation time and complexity increase
Solution Approach 1:
The C-shaped base body is pre-formed with the two limbs in a spread-apart configuration, allowing the locking bar to be inserted first. The limbs are then simply moved into overlapping position to complete the assembly, eliminating complex step-by-step locking procedures.
Solution Approach 2:
The hinge connection between the two limbs allows dynamic movement during installation. The limbs can be easily spread apart for insertion and then moved into overlapping position for locking, providing a simple, fast installation process that maintains secure connection.
4Strength
If the limbs are connected rigidly, then the structural strength is improved, but the ease of assembly deteriorates
Solution Approach 1:
The hinge connection provides dynamic flexibility during assembly, allowing the limbs to be easily positioned and adjusted. Once assembled, the structure maintains sufficient strength for its intended function, balancing ease of assembly with structural requirements.
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 C-shaped attachment element facilitates easy installation, secure locking, and tolerance-free operation with low noise, ensuring a robust connection even under high operational stresses while reducing production and installation complexity.
Implementation Method 1
The limbs of the C-shape are connected with each other by a hinge (i.e. hinge-type) connection
Implementation Method 2
the limbs are connected elastically/resiliently. This makes it possible to significantly simplify the assembly during the initial placement onto the locking lever because in unstressed condition the limbs are located in a defined starting position
Implementation Method 3
locking the limbs with their preferably tapered or cone-shaped ends in the opening of the actuation lever
Data Source
AI summary
An attachment element (1) connecting a locking bar (4) of a lock (2) of a motor vehicle to an actuation lever (5) of a motor vehicle lock (2), wherein the attachment element (1) consists of one part and is C-shaped, and wherein the limbs (11, 12) of the C-shape (10) are connected with each other in a hinge-type connection and are designed so that they can be connected positively and/or frictionally with an opening (6) of a lever (5).