Modular Cable Drum Housing for Vehicle Protection Devices
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Solution Overview
Problem
Existing cable drive systems for vehicle interior protection devices require complex design adaptations to accommodate different installation conditions, such as left-hand and right-hand side windows, necessitating specific cable drum housing configurations.
Innovation Solution
A modular cable drum housing with multiple housing parts that can be mounted in various positions relative to each other, allowing the orientation of control cable guidance directions to be adjusted without specific design adaptations, using a joint with fastening elements and positioning portions for secure and adaptable mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single fixed cable drum housing design is used, then manufacturing and inventory are simplified, but adaptation to different installation conditions (left-hand and right-hand side windows) becomes difficult
Solution Approach 1:
The cable drum housing is divided into a first housing part and a second housing part that can be independently positioned and assembled. The first housing part containing the cable drum unit can be rotated to different mounting positions (0° or 180°) relative to the second housing part, allowing the system to adapt to different installation conditions without requiring completely different housing designs.
Solution Approach 2:
The housing parts are designed with rotational freedom around a reference axis, allowing the first housing part to be dynamically positioned in different orientations. This dynamic positioning capability enables the cable guidance directions to be adjusted according to the specific installation location (left-hand or right-hand side window) while using the same basic housing components.
2Ease of manufacture
If separate cable drum housings are designed for different installation positions, then adaptation to specific conditions is optimized, but device complexity and inventory requirements increase
Solution Approach 1:
The cable drum housing is designed as a universal assembly that can function in multiple installation configurations. By providing the first housing part with multiple mounting positions (0° and 180° rotation), a single housing design serves both left-hand and right-hand side window installations, eliminating the need for separate specialized housings for different positions.
3Stability of the object's composition
If the cable drum housing is made as a single integrated piece, then structural stability is improved, but flexibility in adjusting guidance directions is reduced
Solution Approach 1:
The housing is segmented into multiple parts (first housing part and second housing part) that are assembled together. This segmentation allows the first housing part to be rotated to different mounting positions while maintaining the overall structural integrity of the assembled housing. The modular design provides both stability through proper assembly and flexibility through rotational positioning capability.
Data Source
AI summary
A cable drive system having a cable drum housing, a cable drum unit mounted therein for rotation by a drive motor, a first control cable and a second control cable. The first and second control cables are each windably held on the cable drum unit for the purpose of driving the protection device. The first control cable is guided out of a first housing part of the cable drum housing along a first direction, and the second control cable is guided out of a separate, second housing part of the cable drum housing along a second direction. Different mounting positions of the first housing part are provided in which the first housing part is in different rotational positions relative to the second housing part, with the result that the first guidance direction has a different orientation than the second guidance direction in the different mounting positions.