Vehicle Rolling Door Handle System With Integrated Locking Mechanism
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Solution Overview
Problem
Existing rolling door systems for vehicles often lack an ideal ergonomic handle location, leading to operator injury and requiring separate handle and lock mechanisms, which are inefficient and costly to manufacture and maintain.
Innovation Solution
A single, selectively rotatable handle system that integrates both door handle and lock functions, featuring a shank portion with cable apertures and a swing plate mechanism, allowing for ergonomic positioning and operation with improved ergonomics and reduced parts requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate door handle and lock mechanism are used, then the door can be locked and opened, but the structure complexity increases and manufacturing costs increase
Solution Approach 1:
The patent combines the door handle and lock mechanism into a single integrated assembly. The handle includes an interior handle portion, exterior handle portion, and shank portion that works together with a single cable assembly to perform both locking and opening functions, eliminating the need for separate handle and lock parts
Solution Approach 2:
The integrated handle assembly serves multiple functions: it acts as both the door handle for opening and the lock mechanism for securing the door. The single assembly can be operated to both unlock and open the door, providing multi-functionality that reduces the number of separate components needed
2Reliability
If the door handle is positioned separately from the lock mechanism, then both functions are provided, but operator ergonomics deteriorate and injury risk increases
Solution Approach 1:
By merging the handle and lock into a single integrated assembly positioned at one location on the door, the patent provides both security and ergonomic benefits. The unified position allows operators to access both locking and opening functions from an ergonomically optimal location rather than requiring separate hand positions
3Reliability
If separate handle and lock mechanisms are used, then both functions are achieved, but manufacturing and maintenance costs increase
Solution Approach 1:
The patent reduces manufacturing complexity by combining the handle and lock mechanisms into a single integrated assembly that can be manufactured as one unit or pre-assembled together, reducing the number of separate manufacturing processes, quality checks, and assembly steps required
Solution Approach 2:
The single integrated handle assembly performs multiple functions (locking and opening), which reduces the total number of parts that need to be manufactured, inventoried, and assembled, thereby simplifying manufacturing operations and reducing costs
4Device complexity
If the lock mechanism is used as the handle, then no separate handle is needed, but operator injury may occur and lock damage may result
Solution Approach 1:
The patent merges the handle and lock functions in a way that preserves operator safety by providing a properly designed handle portion with appropriate ergonomics and positioning, while still integrating it with the lock mechanism so that the lock is not subjected to improper handling forces
Solution Approach 2:
The integrated assembly allows the same structure to safely perform both handle and lock functions, with the design ensuring that the handle portion is suitable for operator contact while the lock portion remains protected from damage
Data Source
AI summary
A handle system and mechanism for a vehicle rolling door is disclosed. The system has an inside handle with a handle portion and a shank portion. The system also has a selectively rotatable swing plate. The swing plate selectively contacts the shank portion of the inside handle to assist in opening the door. The swing plate can also contact a stop plate. An outside handle is also provided.