Vehicle Handle Cap Locking for Easier Cylinder Lock Access
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Solution Overview
Problem
Existing vehicle handles with a cap for closing the cylinder lock operation opening face challenges in operability due to the need for elastic deformation of the locking leg, which increases the arm length and reduces the proximity of the cylinder lock to the handle body, thereby compromising the operability of the cylinder lock.
Innovation Solution
A vehicle handle design where a cap with an elastic locking portion is used to close the operation opening of the cylinder lock, allowing the elastic locking portion to be translated along the door's front surface during attachment and detachment, eliminating the need for height-based movement space and enabling the cylinder lock to be positioned closer to the handle body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the arm length of the locking leg is increased to prevent reduction of operability during cap attachment and detachment, then the reliability of cap attachment is improved, but the distance from the cylinder lock to the front surface of the handle body is increased, resulting in reduced operability of the cylinder lock
Solution Approach 1:
The locking mechanism transitions from vertical elastic deformation (upward/downward movement) to horizontal translational movement along the door front surface. This dimensional change allows the locking portion to achieve reliable engagement without requiring excessive arm length that would protrude toward the cylinder lock, thereby resolving the contradiction between cap attachment reliability and cylinder lock operability
2Ease of operation
If the arm length of the locking leg is increased to ensure sufficient elastic deformation capability, then the ease of operation for cap attachment is improved, but the length from the cap main body to the tip end of the cylindrical portion is increased, resulting in reduced operability of the cylinder lock
Solution Approach 1:
The locking leg's movement is redirected from the vertical dimension (affecting cap length) to the horizontal dimension (along the door surface). This allows sufficient movement range for easy operation while keeping the cap's vertical profile compact, preventing interference with the cylinder lock's accessibility
3Ease of manufacture
If the locking leg is made elastically deformable to enable attachment and detachment, then the ease of manufacture of the cap is improved, but the operational force required for attachment and detachment is excessive, reducing the ease of operation
Solution Approach 1:
The locking mechanism changes from relying on elastic deformation of a locking leg to using translational movement of a locking portion along the door surface. This parameter change eliminates the need for excessive operational force while maintaining the simple structural advantage of elastic components, achieving both ease of manufacture and ease of operation
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 operability of the cylinder lock by allowing it to be positioned near the front surface of the handle body, improving accessibility and reducing the operational force required for cap attachment and detachment.
Implementation Method 1
the locking leg 4d′ is once elastically deformed, the locking of the locking protrusion 4e′ is released
Data Source
AI summary
A vehicle handle to be attached to a door of a vehicle such that the vehicle handle is operable to be pulled out, the vehicle handle including: a handle body portion having an operation opening to a cylinder lock attached to the door; and a cap configured to close the operation opening. An elastic locking portion is provided on one of the cap and the handle body portion, a locked portion is provided on the other of the cap and the handle body portion, and the elastic locking portion is translationally moved along a door front surface in accordance with an attachment and detachment operation of the cap with respect to the operation opening, and being elastically locked to and unlocked from the locked portion.