Vehicle Door Handle Pre-Assembly Module Design
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Solution Overview
Problem
Existing door handle devices for vehicles require complex and time-consuming assembly processes, involving the threading of handle parts through small openings in the door panel, which increases manufacturing costs and time.
Innovation Solution
A handle device with preassembled modules, where the handle part is mounted on a handle shell on the outside of the door, eliminating the need for threading and allowing for simplified assembly, with a blocking unit for locking and actuation, and latching elements for secure attachment, enabling easy connection of the modules during final assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the handle part is threaded through small openings in the door panel during final assembly, then the handle device can be installed on the vehicle, but the assembly process becomes time-consuming and complex
Solution Approach 1:
The handle part is pre-assembled on the handle recess before final installation on the door. This preliminary assembly allows the handle part to be positioned and secured in advance, eliminating the need for time-consuming threading operations through small openings during final vehicle assembly. The pre-assembled unit is then installed as a complete module through a larger opening.
Solution Approach 2:
The handle device is divided into modular components: a handle recess with pre-mounted handle part, and a handle bracket that receives this assembly. This segmentation allows the handle part to be pre-assembled on the recess separately, then integrated with the bracket during final assembly, simplifying the overall installation process.
2Reliability
If multiple assembly steps are required for final assembly on the vehicle, then the handle device can be properly installed, but the process becomes complex and requires practice
Solution Approach 1:
The handle part is pre-assembled on the handle recess with proper positioning and securing before the final installation step. This preliminary action ensures correct alignment and reduces the complexity of final assembly, as the handle part is already in its final position relative to the recess when the module is installed on the door.
Solution Approach 2:
The handle part and handle recess are combined into a pre-assembled module that is installed together as a single unit on the door. This merging reduces the number of separate assembly steps required during final installation, simplifying the process while maintaining installation quality.
3Ease of operation
If the handle part protrudes from the door, then it is easily accessible for operation, but it increases wind noise and creates safety risks
Solution Approach 1:
The handle part is designed to be movable between a retracted position (flush with the door surface) and an extended operating position. When not in use, the handle remains flush with the door to minimize wind noise and eliminate safety hazards from protruding parts. When operation is needed, the handle can be extended or pulled out for easy grasping and operation.
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
The invention relates to a handle device (10) for a closing device (12) for a displaceable door (11) or similar on a vehicle, comprising a first module (30) which comprises a handle support (31) and which is arranged on the inner side (11.4) of the door (11) by means of the handle support (31), and a second module (50) which is arranged on the outer side (11.5) of the door (11), and contains a handle part (51). Said handle part (51) is displaceably mounted in relation to the door (11) for operating said handle device (10). According to the invention, the second module (50) comprises a handle shell (54) which is arranged on the outer side (11.5) of the door (11), and said handle part (51) is displaceably mounted on said handle shell (54). The invention also relates to a method for mounting a handle device (10) which is used to operate a closing device (12) of a vehicle.