Locking Device Vertical Pivot Axis Compactness
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Solution Overview
Problem
Existing closure devices for convertible vehicle tops require significant installation space due to the horizontal adjustability of locking hooks and pivot axes, which compromises their compactness and reliability.
Innovation Solution
A coupling device is introduced that decouples the horizontal adjustability of the locking hook's bearing end from its pivoting mechanism, allowing for independent optimization of both degrees of freedom, using a crosshead design with a cross carrier and vertical shaft to achieve a compact and stable structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the locking hook is mounted directly on the housing with horizontal adjustability, then the structure is simple, but the installation space in the vertical direction becomes large
Solution Approach 1:
The patent reorients the pivot axis from horizontal to vertical direction. The locking hook pivots about a vertical pivot axis instead of a horizontal one, which allows the mechanism to achieve the same functional range of motion while occupying less vertical installation space. This dimensional change resolves the contradiction by maintaining structural simplicity while reducing the vertical footprint of the mechanism.
2Ease of operation
If the locking hook is mounted to pivot about a horizontal pivot axis, then the pivoting motion is achieved, but the vertical installation space requirement increases
Solution Approach 1:
The patent changes the orientation of the pivot axis from horizontal to vertical. The locking hook is now mounted to pivot about a vertical pivot axis that extends in the vertical direction, perpendicular to the plane of movement of the locking hook. This allows the pivoting motion capability to be maintained while significantly reducing the vertical installation space requirement, as the rotation occurs around a vertical axis rather than requiring vertical clearance for horizontal axis rotation.
3Volume of moving object
If the horizontal adjustability and pivoting mechanism are integrated, then the structure is compact, but the reliability and smooth operation are compromised
Solution Approach 1:
The patent segments the mechanism into distinct functional components: the locking hook, the vertical shaft, and the coupling device. The locking hook is mounted on the vertical shaft, which is rotatably coupled to the housing. This segmentation allows each component to be optimized independently - the locking hook for reliable engagement, the vertical shaft for smooth rotational adjustment, and the coupling device for compact integration - thereby achieving both reliability and compactness simultaneously.
Data Source
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AI summary
The locking device (1) comprises a locking hook (2) with a grip (3) at the front, and a bearing (4) at the back. A housing (5) is provided, in which the bearing is adjustably mounted in a longitudinal direction of the locking hook. A drive unit (7) is provided, which is drivingly connected with the bearing through a coupling unit (15).