Vehicle Handle Assembly Bent Lever Avoids Balance Weight Interference
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Solution Overview
Problem
Existing outside handle assemblies for vehicles face complications in assembly due to interference between the operating lever and balance weight, leading to reduced fabrication workability and complexity.
Innovation Solution
The outside handle assembly features an operating lever with a perpendicularly-bent shape that allows easy insertion into the handle base without interfering with the balance weight, using a return spring to pivot the balance weight and an initial setting lever for locking and unlocking, simplifying the assembly structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a straight operating lever is used in the handle grip, then the structure is simple, but the fabrication workability is reduced due to limitations in coupling the mounting screw
Solution Approach 1:
The operating lever is changed from a straight shape to a perpendicularly-bent shape, introducing a dimensional change in its geometry. This allows the lever to be inserted into the handle base from a different orientation, avoiding interference with the balance weight and improving fabrication workability while maintaining structural simplicity
2Ease of operation
If a separate handle lever is mounted in the handle base to operate the balance weight, then the balance weight can be operated, but the assembly structure becomes complicated
Solution Approach 1:
The operating lever of the handle grip is merged with the mechanism for operating the balance weight. The perpendicularly-bent operating lever directly pushes the pullback lever of the balance weight after insertion, eliminating the need for a separate handle lever mounted in the handle base, thus simplifying the assembly structure while maintaining operational capability
3Ease of operation
If the balance weight is mounted at the rear side of the handle base, then the balance function is achieved, but the operating lever cannot be inserted without interference
Solution Approach 1:
The perpendicularly-bent shape of the operating lever allows it to be inserted into the handle base from a direction that avoids the balance weight mounted at the rear side. The bent configuration enables the lever to pass through the handle base without colliding with the balance weight, improving insertion workability while preserving the balance function
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design simplifies the assembly process by allowing easy coupling of the operating lever to the balance weight, improving fabrication workability and reducing complexity while maintaining effective door operation.
Implementation Method 1
a balance weight 30 mounted at the rear side of the handle surface 20 pivotably by the medium of a return spring
Implementation Method 2
the end portion of the operating lever 14 of the handle grip 10, that is, the bent part 16 pushes the pullback lever 34 of the balance weight 30 to be pivoted
Data Source
AI summary
An outside handle assembly of a vehicle includes a handle grip having a pivot end at one end thereof and an operating lever at the other end thereof, and a handle base located in a door panel and coupled to the handle grip that can be pulled by a user. Here, an initial setting lever is mounted at a rear side of the handle base. A balance weight mounted at the rear side of the handle base by the medium of a return spring is moved in an open direction to be hooked and locked by the initial setting lever. Also, the operating lever of the handle grip has a perpendicularly-bent end at the end thereof such that the operating lever is inserted into the handle base without an interference with the balance weight.