Tool-Free Armrest Mounting Assembly with Self-Locking Pivot Mechanism
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Solution Overview
Problem
Existing vehicle seat armrests face challenges in secure and efficient attachment to seat backs, requiring complex structures and tools for installation.
Innovation Solution
A lightweight and durable mounting assembly that includes a pivot rod, stop rod, and mounting plates with keyholes and channels, allowing the armrest to pivot between use and stowed positions without the need for tools or fasteners, utilizing a retention tab and pivot cradle for secure rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional mounting methods are used for armrests, then secure attachment is achieved, but installation requires tools and fasteners increasing complexity
Solution Approach 1:
The mounting assembly enables tool-free installation through self-contained features: the retention tab automatically secures the armrest when pressed against the seat back, and the pivot rod with stop rod mechanism self-locks into position without requiring external fasteners or tools
Solution Approach 2:
Multiple mounting functions are integrated into a single assembly unit comprising the mounting plate, retention tab, pivot rod, and stop rod. This consolidation eliminates the need for separate fasteners, brackets, and installation tools, reducing both structural and procedural complexity
2Productivity
If traditional fastening methods are used, then secure mounting is achieved, but installation time and labor costs increase
Solution Approach 1:
The retention tab is designed to automatically engage and secure the armrest through simple pressure application, eliminating time-consuming fastening operations. The pivot rod and stop rod mechanism similarly self-locks into position without requiring manual intervention for securing
Solution Approach 2:
The mounting assembly is pre-configured with the retention tab in a ready-to-engage position and the pivot rod with integrated stop rod features. This preliminary preparation allows the installer to simply press the armrest into place without performing separate securing operations during installation
Data Source
AI summary
An armrest mounted in a seat assembly includes an armrest mounting assembly. The mounting assembly supports the armrest and is adapted to provide rotation of the armrest between a stowed and use position. The mounting assembly includes a bracket supporting a mounting plate having a stop rod rotation channel, a pivot rod installation aperture, a retention tab, and a pivot cradle. The pivot rod has an end portion shaped to engage the mounting plate. The armrest mounting assembly provides an efficient securing mechanism for a pivoting armrest.