Automotive Door Handle External Assembly Method
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Solution Overview
Problem
Current methods for assembling motor vehicle door handles are complex and require a handle base mounted inside the door, increasing costs and weight, while also limiting space and complicating the integration of locks.
Innovation Solution
A method where the articulation end of the gripping lever and fixed positioning body are assembled from the outside, with the lock body inserted and secured from outside the panel, eliminating the need for an internal handle base, and allowing for easier integration of locks by simplifying the assembly process and reducing the number of required parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a handle base is mounted inside the door panel, then the handle structure is stable and secure, but the device complexity increases and manufacturing costs rise
Solution Approach 1:
The patent extracts the base component from the internal door panel assembly and relocates it to the external handle structure. The base is now integrated into the handle body itself rather than being a separate internal mounting component, simplifying the overall assembly while maintaining structural stability through the external mounting configuration.
2Reliability
If a handle base is mounted inside the door panel, then the handle is securely fixed, but the weight of the handle increases
Solution Approach 1:
The base component is extracted from the internal door panel assembly and integrated into the external handle structure. This eliminates the need for separate internal mounting hardware and reduces overall handle weight while maintaining secure fixation through the external mounting configuration.
3Reliability
If the lock is integrated into the handle from the inside, then the assembly is secure, but the manufacturing cost and assembly time increase
Solution Approach 1:
The patent inverts the traditional assembly sequence by mounting the lock body to the handle from the external side rather than from the internal door panel side. This allows the lock to be pre-assembled with the handle as a complete unit, enabling faster installation and reducing assembly time while maintaining secure integration.
4Reliability
If the handle is assembled from the inside of the door panel, then all components can be secured, but the assembly process becomes more complex
Solution Approach 1:
The patent inverts the traditional assembly approach by performing the handle and lock assembly from the external side of the door panel rather than from the internal side. This external assembly method simplifies the manufacturing process by allowing better access to components and more straightforward fastening operations, while still achieving reliable component fixation.
Data Source
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AI summary
The invention relates to a method for assembling a handle in a panel of an openable body section of an automobile, characterised in that: a first step (101) comprises assembling, from the outside of said panel, a hinging end of a gripping lever of a handle of an openable body section of an automobile in a first hinge cavity (11b) of said panel and said fixed positioning body in a second positioning cavity (11b) of said panel; and a second step (102), consecutive to said first step (101), comprises inserting a bolt cylinder in said fixed positioning body from the outside of said panel, screwing an attachment screw into said bolt cylinder through said fixed positioning body from the inside of said panel, and screwing an attachment screw into the hinging end from the inside of said panel. The invention also relates to a handle of an openable body section of an automobile.