Electric Fastener Feed Tool With Curved Guide Path

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Solution Overview

Problem

Compressed air-powered tools for feeding fasteners in manufacturing environments are noisy and hinder portability due to the need for a compressed air hose, which may not be infrastructurally supported in modern electric tool environments.

Innovation Solution

A tool with a receiving container, guide device, flexible pushing element, electric drive, and activation element that allows for the incremental movement of fasteners along a curved guide track, eliminating the need for a compressed air line by using an electric drive and ergonomic design for hand-held or robotic use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If compressed air-powered tools are used for feeding fasteners, then fastener feeding function is achieved, but noise is generated and portability is impaired due to air hose requirement

Engineering Contradiction:
ImprovenoiseVSAvoidportability
Core Design Contradiction:
Object-generated harmful factorsVSEase of operation

Solution Approach 1:

The patent replaces the compressed air-powered mechanical system with an electric drive system. The electric motor (18) directly drives the push element (16) through a drive mechanism, eliminating the need for compressed air hoses and associated noise, while improving portability for handheld or robotic use

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent eliminates the pneumatic system entirely by using an electric drive mechanism. The flexible push element is moved by mechanical actuation from the electric motor rather than by compressed air pressure, removing the source of noise and the requirement for air hose infrastructure

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Ease of operation

If compressed air hose connection is required, then fastener feeding is enabled, but handling is impaired and infrastructure dependency increases

Engineering Contradiction:
ImprovehandlingVSAvoidinfrastructure dependency
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent substitutes the pneumatic delivery system with an electric drive system that can operate independently of compressed air infrastructure. The electric motor with its power source (battery or external power) enables the tool to function in environments without air hose infrastructure, significantly improving adaptability and handling

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Manufacturing precision

If individual fastener dispensing is implemented, then assembly precision is improved, but device complexity increases

Engineering Contradiction:
Improvefastener dispensing precisionVSAvoidtool structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent segments the fastener supply into individual units that can be dispensed one at a time. The guide device (6) with its curved guide path and the push element mechanism divide the bulk fastener supply into controlled individual presentations at the discharge section, enabling precise assembly while managing complexity through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The guide device features a curved guide path that elegantly manages the transition from the receiving container to the discharge section. This curved geometry allows individual fasteners to be guided smoothly along a defined path, ensuring precise dispensing while maintaining a compact and manageable tool structure

Inventive Principle:
Principle #14Spheroidality (Curvature)

Data Source

PatentEP4159363B1Tool for repeatedly feeding individual fastening elements from a supply with a plurality of fastening elements
Publication Date: 2024.09.04 AIRBUS OPERATIONS GMBH
  • EP4159363B1 patent drawingFigure 1a~1c
  • EP4159363B1 patent drawingFigure 2~3

AI summary

A tool for repeatedly feeding individual fasteners from a supply of multiple fasteners comprises a receiving container, a guide device, a flexible linear push element, an electric drive, an activation element, and a feeding element with a dispensing section, wherein the guide device connects to the receiving container and extends from there into the feeding element and terminates at the dispensing section, wherein the guide device extends at least partially along a curved guide path, wherein the guide device has an opening cross-section that is largely constant along the guide path and is limited radially to the guide path by at least one guide element in order to guide a plurality of directly adjoining fasteners along the guide path, wherein the push element extends from the receiving container into the guide device.has an outer cross-section adapted to the opening cross-section and is designed to be guided and moved along the guide track in the guide device by the drive, wherein the drive is coupled to the activation element and, when the activation element is actuated, moves the push element in the direction of the discharge section.