Vehicle Door Handle Reinforcing Plate Resin Base Integration
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Solution Overview
Problem
Existing outer handle devices for vehicle doors increase the number of components when trying to restrict the turning end of the outer handle on the opening side, leading to inefficiencies in design and assembly.
Innovation Solution
Incorporating a metallic reinforcing plate with a receiving portion that abuts against the coupling arm during the turning operation, which is integrated with the base member and outer panel, reducing the need for additional components and simplifying assembly by using a sheet-like seal member with engaging holes and projections for temporary holding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a receiving portion is provided in the base member to restrict the turning end of the outer handle, then the turning end can be restricted, but the base member made of resin cannot withstand the large load applied during operation
Solution Approach 1:
The invention uses a composite structure combining a resin base member with a metallic reinforcing plate. The base member provides mounting functionality while the metallic plate provides the necessary mechanical strength to withstand large loads during handle operation, resolving the contradiction between reliability and material strength limitations.
Solution Approach 2:
The mounting structure is segmented into functional components: the resin base member for positioning and the metallic reinforcing plate for structural support. This segmentation allows each component to specialize in its optimal function, with the metal plate bearing the mechanical load while the resin component provides the receiving portion for the coupling arm.
2Strength
If a dedicated metallic receiving member is attached to the outer panel to restrict the turning end, then the load bearing capacity is sufficient, but the number of components increases
Solution Approach 1:
The invention merges the receiving portion function with the base member structure, integrating the load-bearing metallic reinforcing plate into the existing base member assembly. This combination eliminates the need for a separate dedicated metallic receiving member, reducing component count while maintaining sufficient load bearing capacity through the integrated plate structure.
3Reliability
If multiple separate components are used for the base member, reinforcing plate, and receiving portion, then each component can be optimized, but assembly complexity and time increase
Solution Approach 1:
The metallic reinforcing plate is integrated with the resin base member to form a unified mounting structure. This merging reduces the number of separate assembly steps while maintaining the optimized functionality of each component, thereby improving assembly efficiency without sacrificing component performance.
Data Source
AI summary
An outer handle device for a vehicle door includes: a latch mechanism; an outer handle having a grip and a coupling arm that is consecutively provided at the other end of the grip and is coupled to the latch mechanism; a base member that is made of a synthetic resin and arranged on the outer side of the outer panel; a metallic reinforcing plate that is interposed between the base member and an outer surface of the outer panel; a cylinder lock configured to switch between locked and unlocked states of the vehicle door, that is disposed in the base member; and a receiving portion that is provided in the reinforcing plate and abuts against the coupling arm during a turning operation of the outer handle to an opening side of the vehicle door to restrict a turning end of the outer handle.