Vehicle Door Handle Cable Holding Member Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing vehicular door apparatus requires an additional operation to confirm if the cable holding member is in the engaging position, which complicates the assembly process and may result in the cable shaking or coming out due to vibrations during vehicle operation.
Innovation Solution
A vehicular door apparatus with a cable holding member that includes a protrusion portion, where the member is pivotably attached to the handle device and has an interference portion on the door panel, allowing judgment of its engaging position without additional operations, thus preventing rattling and ensuring secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the cable clamp is pivotably attached to the handle base without additional confirmation mechanisms, then the device complexity is reduced, but the reliability of cable engagement deteriorates because the cable may shake or come out due to vibration
Solution Approach 1:
The door panel provides visual feedback through the interference portion that indicates whether the cable holding member is in the engaged or disengaged position. When the cable holding member is disengaged, the protrusion portion interferes with the interference portion on the door panel, providing a visible signal to the assembler that engagement is incomplete, eliminating the need for additional confirmation operations.
Solution Approach 2:
The interference portion on the door panel automatically provides engagement status indication without requiring additional tools or operations. The structure itself serves the dual function of securing the cable holding member and providing visual feedback on engagement status, making the assembly process self-checking.
2Reliability
If the cable holding member is made secure against vibration, then the reliability of cable engagement is improved, but the device complexity increases due to additional confirmation operations
Solution Approach 1:
The interference portion on the door panel merges two functions into a single structural element: it provides vibration resistance to secure the cable holding member in the engaged position, and simultaneously serves as a visual indicator for engagement status. This eliminates the need for separate confirmation mechanisms.
Solution Approach 2:
The interference portion acts as an intermediary between the cable holding member and the door panel, providing both mechanical securing through interference fit and visual signaling through its interaction with the protrusion portion. This intermediary structure resolves the contradiction by providing both reliability and simplicity.
3Ease of operation
If the protrusion portion interferes with the interference portion in the non-engaging position, then the ease of operation is improved by eliminating additional confirmation steps, but the device complexity increases due to the interference portion structure
Solution Approach 1:
The interference portion on the door panel performs multiple functions: it provides structural support for the cable holding member, serves as a visual indicator for engagement status, and prevents accidental disengagement. This multi-functionality justifies the additional structure by eliminating the need for separate confirmation mechanisms.
Solution Approach 2:
The interference portion is a localized structural feature on the door panel that provides specific functionality only where needed - at the cable holding member attachment location. This localized approach minimizes overall device complexity while providing the necessary ease of operation through visual feedback.
Data Source
AI summary
A door device for a vehicle includes a cable for connecting a handle device and a lock unit. A cable holding member mounted to the handle device is displaced between an engagement position in which the cable holding member engages with the cable and a non-engagement position in which the cable holding member does not engage with the cable. A contact portion of a door panel is configured such that when the handle device is being mounted to the door panel, the contact portion contacts the cable holding member in the non-engagement position and interferes with the assembly of the handle device to the door panel and the contact portion does not contact the cable holding member in the engagement position.