Vehicle Sliding Door Latch Assembly with Adjustable Height Handle
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Solution Overview
Problem
The existing vehicle sliding door latch assemblies face difficulties in proper mounting due to varying door heights, making it challenging to operate the latch effectively.
Innovation Solution
A vehicle latch assembly with a rotatable handle shaft, linked to a system of pivotally coupled links and a U-shaped bracket, allowing the latch handle to be elevated and adjusted in height, ensuring proper engagement with the latch mechanism regardless of door height variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the latch is mounted at a fixed height, then the mounting process is simple, but the latch becomes difficult to open when door height varies
Solution Approach 1:
The latch assembly incorporates a adjustable mounting system with a mounting bracket that can be positioned at different heights along the door. The bracket includes a slot and adjustment hole mechanism that allows the latch to be dynamically repositioned vertically to match the specific door height, transforming a static fixed-height latch into a dynamic adjustable-height latch that adapts to varying door dimensions.
2Adaptability or versatility
If the latch handle is elevated using links and brackets, then proper height adjustment is achieved, but the device complexity increases
Solution Approach 1:
The height adjustment mechanism is divided into separate modular components: a mounting bracket with adjustment holes, a link connecting the bracket to the latch housing, and a U-shaped bracket supporting the handle. This segmentation allows each component to perform a specific function while collectively providing height adjustability. The modular design enables independent adjustment of the latch position without redesigning the entire latch assembly.
Solution Approach 2:
The link acts as an intermediary element between the mounting bracket and the latch housing, transmitting the positional adjustment. The U-shaped bracket serves as an intermediary support structure for the handle, allowing it to be positioned at the correct height while maintaining connection to the latch mechanism. These intermediary components enable height adjustment without directly complicating the core latch functionality.
Data Source
AI summary
A latch assembly includes a latch, a latch bar, an inside handle, an outside handle, and a handle shaft. The housing is coupled to a rear support bracket. A U-shaped brace is mounted to the support bracket. The inside handle is coupled to the brace for reciprocal, pivotal movement and operation of the latch assembly. The inside handle is coupled to a first link which is coupled to an offset link. The first link is mounted to the shaft of the latch assembly through a mounting barrel or fitting having a shaft hole that is configured to receive and hold the exposed end of the shaft. The movement of the handle moves the first link which pivots the second link so as to rotate the handle shaft.