Vehicle Door Handle Balance Weight Response
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Solution Overview
Problem
The existing door outside handle for vehicles has a delayed operational response of the balance weight, increased number of components, and higher weight and cost due to the use of a base lever, which complicates assembly and reduces convenience.
Innovation Solution
A door outside handle design that directly connects the door handle and balance weight through a balance shaft and spring, eliminating the need for a base lever, with specific features like lever grooves, shaft coupling portions, and a balance spring for improved assembly and operational responsiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a base lever is used to transmit operational force from the door handle to the balance weight, then the door handle structure is established, but the operational response of the balance weight is delayed
Solution Approach 1:
The invention extracts and removes the base lever from the door handle structure. By eliminating this intermediate component, the door handle achieves direct connection to the balance weight, thereby eliminating the delay in operational response while simplifying the overall structure.
Solution Approach 2:
The invention merges the door handle and balance weight into a more integrated structure by removing the base lever. This consolidation allows the operational force to be transmitted directly from the door handle to the balance weight, improving response speed and reducing structural complexity.
2Ease of operation
If a base lever is used in the door handle structure, then the door handle can operate, but the number of components increases
Solution Approach 1:
The invention extracts and eliminates the base lever from the component list. This removal reduces the total number of components while maintaining the operational functionality of the door handle through direct connection between the door handle and balance weight.
3Force
If a base lever is used in the door handle structure, then the door handle can transmit force, but the weight of the door handle increases
Solution Approach 1:
The invention removes the base lever from the door handle assembly, thereby reducing the overall weight. The force transmission function is maintained through the direct structural connection between the door handle and balance weight, eliminating the need for the additional weight of the base lever.
4Ease of operation
If a base lever is used in the door handle structure, then the door handle can function, but the cost increases
Solution Approach 1:
The invention extracts and eliminates the base lever from the door handle structure. This removal reduces the number of components that need to be manufactured, assembled, and inventoried, thereby reducing manufacturing costs while maintaining operational functionality through direct connection.
Solution Approach 2:
The invention merges the functions previously performed by separate components (door handle and balance weight connected directly) into a more streamlined structure. This consolidation reduces manufacturing complexity and cost while preserving the essential operational function.
5Ease of operation
If the handle lever is coupled to the mounting screw through a narrow working space, then the door handle can be assembled, but the convenience during assembly work is reduced
Solution Approach 1:
The invention removes the base lever from the assembly, which eliminates the need for coupling the handle lever to the mounting screw through the narrow working space. This simplification allows for easier assembly operations with adequate working space.
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 enhances the operational responsiveness of the balance weight, reduces the number of components and weight, and simplifies assembly, leading to cost savings and improved quality.
Implementation Method 1
a balance spring which is fixed to the handle base at one end and fixed to the balance shaft at the other end in a state of being fitted to the balance shaft to impart elastic resilience to rotation of the balance weight
Data Source
AI summary
A door outside handle for vehicle may include a door handle which has a handle hinge formed at one end and a handle lever formed at the other end and has a lever groove formed on a lower end bottom surface of the handle lever, a handle base which has a hinge hole formed at one end and a lever hole formed at the other end into which the handle hinge and the handle lever are inserted, and has two shaft coupling portions separately formed at a position corresponding to where the lever hole is formed, and a balance weight which includes a balance shaft rotatably inserted into the shaft coupling portions and has an assembly protrusion formed to be fitted to the lever groove.