Recessed Channel Accessory Mounting System

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Solution Overview

Problem

Conventional vehicle accessory mounting systems lack flexibility in placement and reconfiguration, often protruding into the passenger compartment and providing limited rigidity and resistance to movement-related forces.

Innovation Solution

A channel-based accessory attachment system with laterally spaced accessory motion restraints and a spring-biased clasp that inhibits lateral movement and rotation, allowing for repositioning and enhanced stability of accessories within the vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If accessories are mounted using conventional elongated supports with convex cross-sectional shapes, then accessories can be attached to vehicle interiors, but the attachment structures protrude into the passenger compartment increasing the chance of accessories being jarred by users moving in the vehicle interior

Engineering Contradiction:
ImproveAccessory attachment and repositioningVSAvoidAccessory instability and jarring
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent transitions from protruding attachment structures extending into the passenger compartment to a channel-based system where accessories are received within a recessed channel. This dimensional change moves the attachment interface from a protruding configuration to a recessed configuration, eliminating interference with passenger movement while maintaining attachment functionality.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The attachment system is segmented into distinct functional elements: the channel element with defined restraints, the accessory body with cooperating elements, and the spring-biased clasp mechanism. This segmentation allows each component to perform its specific function optimally - the channel provides structural support and positioning, while the clasp provides secure engagement.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If attachment structures are designed as continuous smooth rails with clamping mechanisms, then accessories can be mounted, but the system provides limited rigidity and resistance to sliding or twisting when subjected to forces from vehicle movement and user jarring

Engineering Contradiction:
ImproveAccessory mounting capabilityVSAvoidRigidity and resistance to sliding/twisting
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The channel element employs asymmetric geometry with a defined channel shape that receives the accessory body. The channel includes an upper wall, rear wall, and shelf that create an asymmetric receptacle, providing inherent structural support and resistance to deformation. This asymmetric configuration offers superior rigidity compared to symmetric continuous rails.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The restraint cooperating elements feature curved surfaces including frustoconical protrusions and spherical engagement surfaces. These curved geometries provide stable point contact and resistance to sliding forces while allowing controlled movement during attachment. The curvature distributes contact forces more effectively than flat surfaces.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Stability of the object's composition

If pre-integrated items such as cupholders and storage bins are built into vehicle consoles and door panels, then these items are permanently fixed, but they offer little flexibility in terms of placement and reconfiguration

Engineering Contradiction:
ImproveFixed position stabilityVSAvoidPlacement flexibility and reconfiguration
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The attachment system transitions from static pre-integrated items to a dynamic, reconfigurable system. The spring-biased clasp mechanism allows accessories to be easily attached and detached, while the channel element with defined restraints provides stable positioning when engaged. This dynamic system combines the stability of fixed items with the flexibility of removable accessories.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The channel element serves multiple functions: it provides structural mounting support, defines precise positioning through restraints, guides accessory attachment, and secures accessories with the clasp mechanism. This universal channel design can accommodate various accessory types with different restraint configurations, replacing multiple specialized pre-integrated items with a single versatile system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3770019B1Modular rail and accessory system
Publication Date: 2022.08.10 VOLVO TRUCK CORP
  • EP3770019B1 patent drawingFigure 1
  • EP3770019B1 patent drawingFigure 2
  • EP3770019B1 patent drawingFigure 3

AI summary

An accessory attachment system includes a channel element (30) arranged to receive one or more repositionable accessories (52). A pivotally mounted spring-based clasp (140) with a hook element (146) engages a lower lip of the channel element. Restraint cooperating elements (111) such as protrusions or recesses of an accessory are configured to cooperate with laterally spaced accessory motion restraints (174) such as recesses or protrusions of the channel element to inhibit lateral movement and rotation of an accessory body. An accessory including laterally spaced restraint cooperating elements and a pivotally mounted spring-biased clasp, as well as an attachment method, are further provided.