Motor Vehicle Door Lock Actuating Device with Segmented Cable Pull
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing motor vehicle door locks face issues with complex construction and safety problems during closing or opening processes, particularly when clothing or body parts get caught, leading to ineffective closing devices and a lack of intuitive solutions to address these issues.
Innovation Solution
A door lock actuating device with a cable pull equipped with two force transmission units interacts with both an actuating lever and a closing element, allowing simultaneous actuation and ensuring the closing device is transferred to an ineffective state when the inside door handle is actuated, enabling easy opening by lifting the pawl from the rotary latch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cable pull with a single force transmission unit is used to actuate the actuating lever, then the construction remains simple, but the closing element cannot be simultaneously actuated to transfer it to an ineffective state
Solution Approach 1:
The cable pull is divided into two separate force transmission units (first and second cable pulls) that can independently actuate different elements. This segmentation allows the actuating lever and closing element to be controlled separately or simultaneously without requiring a complex integrated mechanism.
Solution Approach 2:
The actuating device is designed so that the cable pull system can serve multiple functions: it can actuate the actuating lever alone, actuate the closing element alone, or actuate both simultaneously depending on which cable pull is engaged. This multi-functionality resolves the contradiction by making the same basic structure adaptable to different operational requirements.
2Adaptability or versatility
If additional closing/opening devices are added to motor vehicle door locks, then comfort and functionality are improved, but the construction becomes more complex and safety issues arise when clothing or body parts get caught
Solution Approach 1:
The closing element is extracted as a separate, independently actuable component from the main locking mechanism. By providing a dedicated second cable pull that can independently actuate the closing element, the system allows the closing functionality to be separated from the actuating lever, reducing the complexity of the integrated control mechanism while maintaining versatility.
Solution Approach 2:
The closing element can be preliminarily actuated to an ineffective state before the actuating lever is operated. This preliminary action prevents the closing device from interfering with the opening operation, addressing safety concerns by ensuring the closing mechanism cannot cause harm during emergency opening situations.
3Extent of automation
If the closing device is activated during the closing process, then automated closing functionality is achieved, but safety problems occur when clothing or body parts are caught, requiring the closing device to be switched off
Solution Approach 1:
The second cable pull acts as an intermediary mechanism that allows manual override of the automated closing process. When safety issues arise during automated closing, the operator can directly actuate the second cable pull to transfer the closing element to an ineffective state, providing a reliable safety mechanism that interrupts the automated process without requiring complex sensors or control systems.
Data Source
Figure 1
Figure 2
AI summary
The invention relates to an actuating device for joint action upon at least two different elements (1, 2) of a motor vehicle door lock (3), with at least one sheathed cable (4, 5) having a core (4) and sheath (5), wherein the sheathed cable (4, 5) is provided in the longitudinal extent thereof with at least two force transmission units (7, 8) which are designed for interaction with a first element (1) at one end and with a second element (2) at the other end upon action on the sheathed cable (4, 5), and one of the two elements (1, 2) is designed as an actuating lever (1), wherein the other element (2) is a closing/opening element (11) operating on a locking mechanism (15, 16).