Vehicle Slide Door Stop Device Bracket Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle slide door stop devices are cumbersome and costly due to multiple separate components, which do not adequately prevent occupant exposure when a window pane is open, as the slide door may collide with the vehicle body in full open positions.
Innovation Solution
A one-piece stop device bracket with a full stopper and mid-stopper integrated into a single unit, featuring a strengthening member and a tub-shaped configuration, which secures to the vehicle side body structure near the lower rail, allowing the slide door to be held in a partial open position when the window pane is opened, reducing the risk of collision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate mid-stopper bracket and full open stopper bracket are used, then safety is improved by preventing occupant exposure, but device complexity and cost increase
Solution Approach 1:
The patent combines the mid-stopper bracket and full open stopper bracket into a single integrated stop device with a unified bracket structure. The bracket includes both a mid-stopper portion extending forwardly and a full open stopper portion extending rearwardly, eliminating the need for separate components while maintaining both safety functions. This merging approach reduces device complexity and cost while preserving the ability to prevent occupant exposure in both partial and full open door positions.
2Reliability
If separate mid-stopper bracket and full open stopper bracket are used, then safety is improved by preventing occupant exposure, but weight and cost increase
Solution Approach 1:
The patent integrates both stopper functions into a single bracket assembly, reducing the total weight compared to using two separate brackets. The unified bracket shares common mounting structures and support elements, eliminating redundant material and reducing overall weight while maintaining both safety functions for preventing occupant exposure.
3Reliability
If multiple separate stopper components are used, then safety coverage is improved, but manufacturing cost increases
Solution Approach 1:
The patent consolidates multiple stopper components into a single integrated bracket that can be manufactured as one piece or pre-assembled unit. This reduces the number of separate manufacturing processes, inventory items, and assembly steps required, thereby lowering manufacturing cost while maintaining comprehensive safety coverage for both partial and full open door positions.
Solution Approach 2:
The unified bracket serves multiple functions simultaneously: it provides both mid-stopper and full open stopper functions, and includes a strengthening member that provides structural support. This multi-functionality reduces the need for separate components and reduces overall manufacturing complexity and cost.
4Reliability
If stopper device prevents full open position, then safety is improved, but ease of operation decreases
Solution Approach 1:
The patent applies different stopper extensions at different locations along the bracket: a mid-stopper portion extending forwardly for partial open position prevention, and a full open stopper portion extending rearwardly for full open position prevention. This localized differentiation allows the door to operate freely in the normal closed-to-partial-open range while providing safety stops only where necessary, maintaining ease of operation for normal use while ensuring safety.
Data Source
AI summary
A stop device is provided for a vehicle slide door for an opening of a vehicle side body structure. The slide door is guided in a front-to-rear direction by a sliding door mechanism which moves the slide door on a rail fixed to the side body structure. The stop device comprises a bracket for securing to the side body structure near a rear end of the lower rail. The bracket includes a base having a forward end portion and a rear end portion. A full stopper is mounted to the rear end portion of the bracket, and a mid-stopper is mounted to the forward end portion of the bracket. A strengthening member is connected to and extends at least partially outwardly from the base. The strengthening member is provided at least partially below the full stopper. The strengthening member has a generally stepped configuration.