Partial-Opening Device Actuating Element Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing partial-opening devices for motor vehicle doors face challenges in achieving a compact and lightweight design while maintaining functionality, especially when installed in limited spaces such as vehicle locks or side doors, where a lightweight, non-compact design is advantageous.
Innovation Solution
A partial-opening device with an electric drive and a gearing system that includes a drive lever on the actuating element, allowing precise force transmission directly to the door element, minimizing force flow through the actuating element and enabling efficient partial opening, with a design that separates the actuating element into a partially opening region for high force transmission and a guiding region for stabilization, using metallic and plastic materials to achieve a lightweight and compact structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If existing partial-opening devices are designed with traditional structures, then they can maintain functionality, but they result in increased weight and larger size
Solution Approach 1:
The actuating element is divided into two distinct regions: a partially opening region made of metallic material for high force transmission, and a guiding region made of plastic material for stabilization. This segmentation allows each region to be optimized for its specific function while reducing overall weight.
Solution Approach 2:
Different materials are used in different regions of the actuating element: metallic material in the partially opening region where high forces are transmitted, and plastic material in the guiding region where stabilization is needed. This local quality optimization reduces weight while maintaining functionality.
2Weight of moving object
If the drive lever is positioned away from the outer end of the actuating element, then force transmission is simplified, but the actuating element requires higher stability and increases weight
Solution Approach 1:
The actuating element is segmented into a partially opening region and a guiding region, with the drive lever positioned in the partially opening region. This segmentation allows the drive lever to be optimally positioned for force transmission without compromising overall stability, as the guiding region provides the necessary stabilization.
Solution Approach 2:
The guiding region is designed with specific stabilization features (such as guide ribs or engagement surfaces) that provide the necessary stability for the actuating element, allowing the drive lever to be positioned optimally in the partially opening region for efficient force transmission.
3Weight of moving object
If uniform material is used throughout the actuating element, then manufacturing is simplified, but weight cannot be optimized
Solution Approach 1:
The actuating element uses different materials (metallic and plastic) in different regions to optimize weight and performance. This can be achieved through various manufacturing approaches such as injection molding with inserts, overmolding, or assembly of separate components, balancing manufacturing complexity with weight optimization.
Solution Approach 2:
The actuating element is designed as a composite structure combining metallic material in the partially opening region and plastic material in the guiding region. This composite approach reduces overall weight while maintaining the necessary mechanical properties in each region, with manufacturing methods selected to balance complexity and benefit.
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 enables a compact, lightweight, and cost-effective partial-opening device that can handle extreme situations by optimizing force transmission and structural design, ensuring reliable operation and reduced weight, while maintaining all necessary functionalities.
Implementation Method 1
having an electric drive, an actuating element, in particular a pushing element which acts on the door element, wherein the actuating element can be moved by means of the electric drive
Implementation Method 2
by means of a gearing arranged between the electric drive and the actuating element
Implementation Method 3
the gearing has a drive lever, and the drive lever is arranged on an outer end of the actuating element
Data Source
AI summary
A partial-opening device for a motor-vehicle door element, having an electric drive, an actuating element, more particularly a pushing element which acts the door element, wherein the actuating element can be moved by means of the electric drive and by means of a gearing arranged between the electric drive and the actuating element, such that the door element can be at least partially opened by means of the actuating element, and wherein the gearing has a drive lever, which is disposed on an outer end of the actuating element, which outer end is associated with the door element.