Roller Blind Cassette Rail Locking With Automatic Sled Actuation
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Solution Overview
Problem
Existing devices for locking roller blind cassettes on vehicle trunks are not cost-effective, user-friendly, and require manual operation for unlocking.
Innovation Solution
A device comprising a sled on a rail with a locking element and actuation mechanism that moves between locking and unlocking positions via a rotating screw drive, allowing automatic unlocking and locking of the cassette with a sled sliding along the rail, and optionally featuring a presenting hook for easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual locking mechanism is used for the roller blind cassette, then the device structure is simple, but the ease of operation deteriorates as manual intervention is required
Solution Approach 1:
The locking element automatically locks and unlocks the roller blind cassette through the sled's movement along the rail. The actuation element is triggered automatically by the sled contacting the contact section, eliminating the need for manual operation. The system serves itself by using the sled's inherent motion to drive the locking mechanism.
Solution Approach 2:
The actuation element acts as an intermediary between the sled's linear motion and the locking element's rotational motion. It converts the sled's movement along the rail into rotational movement of the locking element, enabling automatic actuation without direct manual intervention.
2Ease of operation
If an automatic actuation mechanism is added to the locking device, then the ease of operation improves, but the device complexity and cost increase
Solution Approach 1:
The locking mechanism uses the sled's own movement to trigger the locking and unlocking actions. The sled contacts the contact section of the actuation element during its normal travel, automatically actuating the locking element without requiring additional actuators, motors, or complex control systems.
Solution Approach 2:
The invention extracts only the essential actuation function needed for automatic locking, using a simple contact-based mechanism rather than a full automated actuation system. This minimal approach maintains ease of manufacture while achieving automatic operation.
3Reliability
If the contact section is positioned to engage early in the sled's movement, then the locking element actuates in time, but the sled may interfere with the roller blind cassette during insertion
Solution Approach 1:
The contact section is positioned at a specific location along the sled's path where it engages the actuation element at the optimal moment. This localized positioning ensures the locking element is actuated at the correct time without interfering with the roller blind cassette insertion, achieving both reliability and ease of operation.
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
The device provides a cost-effective, easy-to-handle solution for locking and unlocking the roller blind cassette, enhancing user convenience and simplifying the operation without complex parts.
Implementation Method 1
The actuation element is configured to move the locking element from the locking position to the unlocking position, when moving from the first position to the second position
Data Source
Figure 1~2a
Figure 2b~3a
Figure 3b~4d
AI summary
The invention relates to a device (10) for locking a roller blind cassette (106) on a trunk (102) of a vehicle (100), the device comprising: a rail (14), a sled (16) configured to guide a roller blind section (112) from the roller blind cassette along the rail, a locking element (20) for locking the roller blind cassette on the trunk, an actuation element (18) for actuating the locking element, wherein the actuation element comprises a contact section (28) arranged in a portion (38) of the rail, wherein the actuation element is movable by the sled between a first position and a second position, when the sled moves along the portion of the rail and contacts the contact section, wherein the actuation element is configured to move the locking element from a locking position to an unlocking position, when moving from the first position to the second position.