Motor Vehicle Door Stay Module with Releasable Mounting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing motor vehicle door opening and closing systems lack a compact design that prioritizes user comfort while ensuring secure and efficient operation, particularly in maintaining the door in an upright position without manual intervention.
Innovation Solution
A setup module for motor vehicle doors featuring an actuator unit and a translationally movable transmission element that can be temporarily connected to a holder via a releasable holding mechanism, allowing the door to be held in an upright position with adjustable holding forces for secure opening and closing, and switching between holding forces to facilitate manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a motor-driven pushing-open arrangement is used to adjust the door from closed to partially open position, then user comfort is improved, but the device complexity increases
Solution Approach 1:
The patent combines the pushing-open arrangement and the holding arrangement into a single integrated positioning device. The actuator unit serves dual purposes: it pushes the door open and simultaneously activates the transmission element to engage with the holder, creating a unified system that performs multiple functions without requiring separate mechanisms for each operation.
Solution Approach 2:
The transmission element is designed with multi-functionality, serving both as a mechanical connector between the actuator and holder, and as an activator for the releasable holding mechanism. This single component performs multiple roles: force transmission, position control, and holding engagement, thereby reducing overall system complexity while maintaining enhanced user comfort features.
2Stability of the object's composition
If a releasable holding mechanism is implemented to hold the door in upright position, then door stability is improved, but the device complexity increases
Solution Approach 1:
The holding mechanism is merged with the transmission element rather than being a separate system. The transmission element directly activates the holding arrangement through its movement, combining the functions of position adjustment and stable holding in a single integrated mechanism that reduces overall system complexity.
Solution Approach 2:
The releasable holding mechanism is designed to automatically engage when the transmission element moves into the extended position, and automatically disengage when the transmission element retracts. This self-activating feature eliminates the need for additional control systems or manual intervention, providing stable door positioning while minimizing added complexity.
3Manufacturing precision
If adjustable holding forces are provided for secure holding and manual opening, then door control precision is improved, but the device complexity increases
Solution Approach 1:
The holding force is designed to be dynamically adjustable based on the door position and operational requirements. The holding arrangement provides different holding forces automatically: a first holding force for normal positioning and a second, greater holding force when closing is required. This dynamic adjustment is achieved through the mechanical design of the releasable holding mechanism itself, without requiring complex electronic control systems.
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
The present invention relates to the opening and closing of motor vehicle doors. To provide a door stay that offers improved user comfort in a compact design, a stay module (10) for a motor vehicle door is provided. The stay module comprises a stay device (12) with an actuator unit (14) and a transmission element (16). The actuator unit is configured to move the transmission element between a retracted position (P1) and an at least partially extended position (P2). When moving into the at least partially extended position, the transmission element is configured to transmit a stay force for a motor vehicle door from the actuator unit via a free end (18) of the transmission element.The transmission element is designed to be translationally movable. The opening device can be attached to one of the vehicle door and body components, and a bracket (20) can be attached to the other of the vehicle door and body components. The free end of the transmission element can be temporarily connected to the other of the vehicle door and body components via the bracket in order to hold the vehicle door in at least one open position.