Vehicle Floor Fixing Device with Central Nut and Arms

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing fixing devices for motor vehicle floors are complex to manufacture and fail to easily accommodate various objects, such as spare wheels, toolboxes, and inflation kits, due to their design and material limitations.

Innovation Solution

A fixing device with three angularly distributed fixing arms and a central nut with a tapped hole, allowing for screwing of threaded elements to securely attach objects, is designed for mounting at the bottom of the motor vehicle floor, featuring a central part with a cup shape and ribs for precise positioning, reducing the number of parts and manufacturing complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a four-arm fixing device with central plate is used to accommodate different objects, then the adaptability is improved, but the device complexity increases due to difficult-to-manufacture clipping means

Engineering Contradiction:

Improveability to attach different objectsVSAvoidcomplexity of clipping means

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal fixing device with a central plate and multiple arms that can accommodate different objects (spare wheel, toolbox, inflation kit) using the same base structure. The central plate with threaded holes and arms with positioning ribs provides a standardized interface that works for various objects without requiring different clipping mechanisms.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent changes the fixing mechanism from complex clipping means to simple threaded fasteners. By using a central plate with threaded holes and arms with positioning features, the system transforms the attachment method into a parameter-based solution where standard bolts and nuts provide the fixing function, greatly simplifying manufacturing.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If multiple fixing arms are used to secure objects, then the reliability of fixation is improved, but the manufacturing complexity increases

Engineering Contradiction:

Improvefixation securityVSAvoidmanufacturing difficulty

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent merges the central plate and multiple arms into a single integrated component that can be manufactured as one piece. The central plate contains threaded holes and the arms extend from it with positioning ribs, combining multiple fixing functions into a unified structure that is easier to manufacture than separate clipping components.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces complex mechanical clipping systems with a simpler threaded fastening system. The central plate provides threaded holes for bolts, and the arms provide positioning through ribs that fit into recesses, eliminating the need for complex clips while maintaining reliable fixation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If a universal fixing system is designed to accommodate various objects, then the adaptability is improved, but the device complexity increases

Engineering Contradiction:

Improveuniversal attachment capabilityVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates a universal fixing system where the central plate with multiple threaded holes and arms with positioning ribs can accommodate various objects (spare wheel, toolbox, inflation kit) using the same attachment mechanism. This single design provides multi-functionality without requiring multiple different fixing systems.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent segments the fixing device into functional elements: a central plate for mounting, multiple arms for positioning and support, threaded holes for fastening, and ribs for alignment. This segmentation allows each element to perform its specific function while contributing to the overall universal capability of the system.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP3313716B1Securing device intended to be fitted in a well, typically a spare wheel well, in a floor, typically at the rear, of a motor vehicle

Publication Date: 2020.01.29 RENAULT SA

Figure 1~2
Figure 3~4
Figure 5~9

AI summary

Securing device intended to be fitted in a well, typically a spare wheel well, in a floor, typically at the rear, of a motor vehicle. The securing device (1) is intended to be fitted in the bottom of a well in a floor of a motor vehicle. The said securing device comprises securing arms (2a, 2b, 2c) allowing the said securing device to be fitted to the said bottom of the well, a central part (3) from which the said securing arms (2a, 2b, 2c) extend. It also comprises a nut (4) with a tapped hole (5) mounted on the central part (3), and the central part (3) comprises an opening (6) arranged so as to allow the passage of a threaded element so that it can be screwed into the tapped hole (5).