Cable Tension Receiver With Stop Transfer for Lighter Flap Actuation
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Solution Overview
Problem
Existing devices for receiving and releasing cable-type tension elements in automotive engineering are bulky and heavy due to the need to withstand direct tensile forces, which is inefficient in terms of size and weight optimization.
Innovation Solution
A device comprising a cable-type tension element, a receiving unit, a drive unit, a stop element, and a counter-stop element that allows force transmission without requiring the receiving unit to directly withstand tensile forces, achieved through a mechanism where the stop element contacts the counter-stop element to transmit forces directly to a higher-level assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiving unit is designed to directly withstand and transmit tensile forces from the tension element, then force transmission reliability is improved, but the size and weight of the device increase
Solution Approach 1:
The patent introduces a counter-stop element as an intermediary component that transfers forces from the tension element to the higher-level assembly (vehicle flap or vehicle body) without requiring the receiving unit to directly withstand these forces. The counter-stop element acts as a mediator that assumes the load-bearing function, allowing the receiving unit to be designed with significantly reduced material content while maintaining force transmission reliability.
2Reliability
If the receiving unit is designed to directly withstand and transmit tensile forces from the tension element, then force transmission reliability is improved, but the size of the device increases
Solution Approach 1:
The counter-stop element serves as an intermediary that transfers forces away from the receiving unit to the higher-level assembly. This force redirection allows the receiving unit to be designed with reduced material content and smaller dimensions while maintaining reliable force transmission through the tension element.
3Reliability
If the receiving unit is designed to directly withstand and transmit tensile forces from the tension element, then force transmission reliability is improved, but the material content and weight increase
Solution Approach 1:
The counter-stop element acts as a force-transmitting intermediary that replaces the need for the receiving unit to directly withstand tensile forces. This allows the receiving unit to be designed with significantly reduced material content, as the force transmission function is assumed by the counter-stop element and its connection to the higher-level assembly.
Data Source
AI summary
The present invention relates to a device (10) for receiving and releasing a cable-type tension element (12), comprising the tension element (12), a receiving unit (18) for receiving the tension element (12), a drive unit (20) for driving the receiving unit (18), a stop element (24) which is connected to the tension element (12) at a predefined point such that the stop element is immovable at least axially to a longitudinal extension of the tension element (12), and a counter-stop element (34) through which at least portions of the tension element (12) are led and which is designed to come into contact with the stop element (24), wherein the stop element (24) is connected to the receiving unit (18) such that, after a predefined length of tension element (12) has been released from the receiving unit (18) and has been led through the counter-stop element (34), the stop element (24) comes into contact with the counter-stop element (34) in a force-transmitting manner. The invention also relates to a corresponding vehicle flap arrangement (42).