Vehicle Door Handle Assembly Integrating Balance Weight for Collision Safety
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Solution Overview
Problem
Conventional outside door handle assemblies for vehicles require additional bases, increasing parts, weight, and production costs, and often compromise the external appearance and safety by exposing parting lines and limiting material choices, while also failing to prevent door opening during side collisions.
Innovation Solution
A door handle assembly with a grip cover and grip body that is hinge-rotatable, featuring a balance weight and blocking lever integrated within the grip body, eliminating the need for a separate base structure, reducing parts and weight, improving appearance, and enhancing safety by preventing door opening during side collisions through inertial forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate base structure is used to install the outside door handle in the door outer panel, then the door handle can be installed and function properly, but the number of parts increases, weight increases, and production cost increases
Solution Approach 1:
The base structure and outside door handle are merged into a single integrated assembly. The grip body directly incorporates mounting features that engage with the door outer panel, eliminating the need for a separate base structure. This integration reduces the number of parts while maintaining installation reliability through direct engagement mechanisms.
2Reliability
If a separate base structure is used to install the outside door handle, then the door handle can be installed, but the weight of the vehicle increases
Solution Approach 1:
The base structure and outside door handle are merged into a single integrated assembly. The grip body directly incorporates mounting features that engage with the door outer panel, eliminating the need for a separate base structure. This integration reduces the number of parts while maintaining installation reliability through direct engagement mechanisms.
3Device complexity
If the base structure is integrally formed or combined with the outside door handle without a separate base structure, then the number of parts is reduced, but a parting line is formed in the outside door handle deteriorating external appearance
Solution Approach 1:
The base structure and outside door handle are merged into a single integrated assembly. The grip body directly incorporates mounting features that engage with the door outer panel, eliminating the need for a separate base structure. This integration reduces the number of parts while maintaining installation reliability through direct engagement mechanisms.
4Device complexity
If the cover part and functional parts are unified, then the number of parts is reduced, but the coating/plating area is exposed to the outside limiting material choices
Solution Approach 1:
The base structure and outside door handle are merged into a single integrated assembly. The grip body directly incorporates mounting features that engage with the door outer panel, eliminating the need for a separate base structure. This integration reduces the number of parts while maintaining installation reliability through direct engagement mechanisms.
5Ease of operation
If a conventional outside door handle assembly is used, then the door can be opened normally, but it cannot prevent door opening during side collision accidents
Solution Approach 1:
A blocking lever is provided that can preliminarily prevent the door from opening during side collision accidents. The blocking lever includes a blocking protrusion that can engage with a blocking groove in the door latch rod, creating a preliminary barrier against unintended door opening during collisions while not interfering with normal door opening operations.
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 solution reduces vehicle parts, weight, and production costs, enhances the external appearance, and improves passenger safety by preventing door opening during side collisions without the need for a separate base structure and by utilizing a dualized coating/plating area.
Implementation Method 1
a balance weight or a blocking lever that is connected with the outside door handle so as not to forcibly rotate by an impact force of the outside door handle, which occurs when a side collision accident occurs
Implementation Method 2
A blocking lever that protrudes toward the release lever by an inertial force and stops rotation of the release lever
Data Source
AI summary
An outside door handle assembly for a vehicle includes a grip cover, a grip body that is provided hinge-rotatable outward in a width direction of the vehicle in an outer panel of a vehicle door, and is engaged with the grip cover, and a balance weight that is included in the grip body to be hinge-rotatable in an opposite direction of a hinge-rotation direction of the grip body with respect to a hinge rotation point on an extension line of the grip body.