Cable Pull Actuating Assembly for Sliding Door Locks
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Solution Overview
Problem
Existing actuating arrangements for sliding door locks in motor vehicles are complex and costly, relying on gear constructions that are prone to problems.
Innovation Solution
A compact and cost-effective actuating arrangement using a cable pull element, where the actuating handle is attached to a transmission element that rotates with it, converting rotations into pulling movements on the cable pull element, regardless of direction, to unlock the door lock and release the door holder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex gear construction is used to enable bidirectional actuation of the door lock, then the door lock can be reliably opened and closed, but the device complexity and manufacturing cost increase significantly
Solution Approach 1:
The patent extracts the complex gear construction from the transmission system and replaces it with a cable pull element. The cable pull element is connected to the actuating handle such that rotational movements in both directions (first and second directions) are converted into linear pulling movements that activate the door lock, eliminating the need for complex gear mechanisms while maintaining bidirectional functionality
Solution Approach 2:
The patent substitutes the mechanical gear system with a cable-based transmission system. The cable pull element, when pulled in response to handle rotation, translates rotational input into linear motion to actuate the door lock mechanism, replacing the traditional gear-based mechanical transmission with a simpler cable-driven system
2Adaptability or versatility
If a rod with gear construction is used to transmit movement from the actuating handle to the door lock, then the door lock can be actuated in opposite directions, but the manufacturing cost and structural complexity increase
Solution Approach 1:
The patent removes the expensive and complex rod-with-gears construction from the actuating mechanism. Instead, a cable pull element is used that can be easily manufactured and installed. The cable pull element is attached to the actuating handle in a manner that converts rotational movements in both directions into linear pulling actions, achieving bidirectional actuation without the need for costly gear components
Solution Approach 2:
The patent changes the transmission mechanism from a rigid rod-with-gears system to a flexible cable pull element system. This parameter change allows for simpler manufacturing processes and lower costs while maintaining the ability to transmit bidirectional rotational movements from the handle to the door lock through linear cable tension
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
This design simplifies the kinematics and reduces costs by using a cable pull element, ensuring reliable operation and easy installation, while eliminating the need for complex gear constructions.
Implementation Method 1
a cable pull element designed in the manner of a Bowden cable and extending at least in sections in a longitudinal direction, which has a first longitudinal end and a second longitudinal end that can be coupled to the door lock of the sliding door, the transmission element being coupled for movement to the first longitudinal end of the cable pull element in this way that a rotational rotary movement of the actuating handle in the first direction of rotation moves the cable element translationally in the direction of the axis of rotation into an actuating position
Data Source
Figure 1~3
Figure 4~6
Figure 7~9
AI summary
The invention relates to an actuating arrangement (9) for a sliding door (2) of a motor vehicle (1), comprising a transmission element (11) which is fixedly mounted on a pivot axis (12), an actuating handle (4) which is rotatable in a first direction of rotation (17a), and a cable element (6) which has a first longitudinal end (8) and a second longitudinal end (10) which can be coupled to the door lock (5) of the sliding door (2). The transmission element (11) is coupled to the first longitudinal end (8) of the cable element (6) such that a rotational movement of the actuating handle (4) in the first direction of rotation (17a) moves the cable element (6) translationally in the direction of the pivot axis (12) into an actuating position in which the cable element (6) can act on the door lock (5).The actuating handle (4) is furthermore rotatable in a second direction of rotation (17b), wherein the transmission element (11) is coupled to the cable pull element (6) in such a way that a rotational movement of the actuating handle (4) in the second direction of rotation (17b), which is opposite to the first direction of rotation (17a), moves the cable pull element (6) translationally in the direction of the axis of rotation (12) into the actuating position.