Integrated Retaining Device for Motor Vehicle Sliding Door Position Control
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Solution Overview
Problem
Existing motor vehicles with sliding doors rely on separate mechanisms for keeping the door closed (impact retaining pin) and open (door check), which are not integrated and can be inefficient in handling impacts and maintaining positions under varying conditions.
Innovation Solution
A unified retaining device with a protruding rod and hook-shaped end that integrates with a door check system to maintain the sliding door in both closed and open positions, using a single component to handle lateral impacts and cooperate with door checks for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate mechanisms (impact retaining pin and door check) are used to keep the door closed and open respectively, then the door position control is achieved, but the device complexity increases
Solution Approach 1:
The patent combines the impact retaining pin and door check into a single integrated retaining device. The device includes a retaining element with a retention element that serves dual functions: acting as an impact retaining pin when the door is closed and cooperating with a door check system when the door is open. This merging eliminates the need for separate mechanisms while maintaining reliable door position control in both states.
Solution Approach 2:
The retaining device is designed as a multi-functional component that performs different functions based on door position. The retention element can engage with the door in the closed position to prevent lateral opening during impacts, and simultaneously cooperate with the door check system in the open position to prevent accidental closing. This universal design allows one component to replace multiple specialized components.
2Stability of the object's composition
If two independent mechanisms are used for closed and open position control, then position stability is achieved, but the mechanical complexity increases
Solution Approach 1:
The patent merges the impact retention function and door check cooperation into a single retaining device. The retention element is designed to provide stable engagement in the closed position while also enabling stable cooperation with the door check system in the open position, thereby maintaining position stability with reduced mechanical complexity.
3Reliability
If separate impact retaining pin and door check are used, then the door can be held in both positions, but the ease of manufacture decreases
Solution Approach 1:
By integrating the impact retaining pin and door check functions into a single retaining device, the patent reduces the number of parts that need to be manufactured and assembled. The single-component design simplifies the manufacturing process, reduces assembly steps, and lowers production complexity while maintaining the door's ability to be held securely in both closed and open positions.
Data Source
AI summary
A retaining device for an external pocket sliding door arrangement for a motor vehicle, the arrangement comprising at least one external pocket sliding door moveable between a closed position in which the sliding door closes off access to the interior of a passenger compartment and/or a loading area of the vehicle, and an open position in which the sliding door leaves access to the interior of the passenger compartment and/or the loading area of the vehicle free, the retaining device being characterised in that it is configured to keep the sliding door in its closed position, in particular in the event of an impact exerted laterally against the sliding door, the retaining device being characterised in that it is further configured to cooperate with a door check system of the arrangement when the sliding door is in its open position, to keep the sliding door in its open position.