Vehicle Seat Fastening Insertion Aid for Blind Screw Alignment

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing screw connection systems in various applications, including automotive and non-automotive contexts, often face difficulties in accessing the screw opening, leading to challenging screwing processes due to blocked views and the risk of screws tilting or getting lost.

Innovation Solution

The implementation of an insertion aid with guide tongues that converge funnel-shaped towards the screw opening, allowing for automatic screw alignment and insertion, ensuring secure screwing without tilting or getting lost, even in blind assembly scenarios, through elastic deformation and strategic placement around the screw opening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a screw connection is used to attach the seat to the vehicle, then secure fastening is achieved, but the screwing process becomes difficult due to blocked access to the screw opening

Engineering Contradiction:
Improvesecure fasteningVSAvoidaccess to screw opening
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces an insertion aid as an intermediary component between the screw and the screw opening. This insertion aid includes guide elements that extend into the blocked screw opening area, providing guidance and alignment for the screw without requiring direct access to the screw opening. The insertion aid acts as a mediator that bridges the gap between the accessible exterior and the inaccessible interior of the blocked opening, enabling successful screw insertion while maintaining secure fastening.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the screw opening is blocked by seat rail and seat, then secure attachment is possible, but the screw cannot be properly aligned and may tilt or get lost

Engineering Contradiction:
Improveattachment securityVSAvoidscrew alignment
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent implements guide elements on the insertion aid that perform preliminary alignment of the screw before it reaches the screw opening. These guide elements are positioned to engage with the screw shaft in advance, establishing the correct angular orientation and positional alignment. This preliminary action ensures that the screw is properly aligned with the screw opening and fastening element before insertion begins, preventing tilting and loss even when the opening is blocked.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If the screw must be inserted blindly, then attachment can proceed without visual access, but the screwing process becomes difficult and error-prone

Engineering Contradiction:
Improveblind assembly capabilityVSAvoidscrewing difficulty
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The insertion aid with its guide elements performs self-alignment and self-guidance functions, enabling the screwing process to proceed autonomously without visual monitoring. The guide elements automatically engage with the screw and direct it along the correct path into the blocked opening, making the system self-sufficient for blind assembly operations. This self-service capability eliminates the need for visual access while maintaining ease of operation.

Inventive Principle:
Principle #25Self-service

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 solution facilitates secure and accurate screwing by automatically guiding the screw into the opening, preventing tilting and loss, while allowing easy insertion and removal, enhancing the reliability and efficiency of the screwing process.

Implementation Method 1

which can be spread open elastically at least at their free ends facing the screw opening

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP3288795B1Device for fixing a seat in a vehicle, vehicle seat arrangement
Publication Date: 2023.05.10 VOLKSWAGEN AG
  • EP3288795B1 patent drawingFigure 1~2
  • EP3288795B1 patent drawingFigure 3~4
  • EP3288795B1 patent drawingFigure 5A~5B

AI summary

The invention relates to a device (7) for fixing a first part, in particular a seat, to a second part, in particular a vehicle, wherein the first part has at least one screw opening (8) for fixing on the second part which has a screw thread (9), comprising a screw (6) which is/can be screwed through the screw opening (8) into the screw thread (9). An insertion aid (10) that is/can be assigned to the screw opening (8) is provided which has at least two guide tongues (15) which run on top of one another towards the screw opening (8) in a funnel shape, and can be flexibly spread apart at least at the free ends (16) thereof facing the screw opening (8).