Button Media Conveyance With One-Way Clutch for Faster Fabrication

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Solution Overview

Problem

The existing button product fabricating devices require user intervention to place a transparent film for crimping with the front lid to the back lid, leading to prolonged fabrication times.

Innovation Solution

A button product fabricating device with a conveying unit equipped with one-way clutches that conveys printing media onto a front member, allowing for quick disposal of unnecessary portions and efficient transfer to a die unit, thereby reducing overall fabrication time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a user manually places a transparent film for crimping on the lower die, then the user can participate in the fabrication process and enjoy the crafting experience, but the fabrication time becomes long

Engineering Contradiction:
Improveuser participation in fabricationVSAvoidfabrication time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system automatically performs the film placement operation without requiring user intervention. The conveying unit self-services by picking up the transparent film from the film pack, conveying it to the correct position, and placing it on the lower die automatically, thereby eliminating the time-consuming manual placement step while maintaining ease of operation through simple button pressing

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The transparent film is pre-packaged in a film pack positioned within easy reach of the user. The conveying unit prepares the film in advance by holding it ready for conveyance, and the system pre-positions the film on the conveying path before the crimping operation begins, so that when the user presses the button, the film is already ready to be automatically placed

Inventive Principle:
Principle #10Preliminary action

2Loss of time

If the conveying unit conveys printing medium onto the front member, then the placement time is shortened, but the device complexity increases due to the conveying mechanism

Engineering Contradiction:
Improveplacement timeVSAvoidconveying mechanism complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The conveying unit is segmented into distinct functional modules: a film pack holding multiple films, a conveying mechanism with rollers and guides, and a placement mechanism. This segmentation allows each component to perform its specific function efficiently while keeping the overall system manageable in complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The conveying unit acts as an intermediary between the film pack and the lower die. It mediates the transfer of the transparent film by providing a controlled conveying path with guides and rollers that precisely position the film without requiring complex direct manipulation mechanisms

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If the conveying path is divided into first and second conveying paths, then unnecessary portions of printing medium can be discarded efficiently, but the device complexity increases

Engineering Contradiction:
Improvediscarding efficiencyVSAvoidconveying path complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The conveying path is segmented into a first conveying path for transporting the printing medium from the printing unit to the die unit, and a second conveying path for discarding unnecessary portions. This segmentation allows independent optimization of each path and enables efficient waste removal without interfering with the main production flow

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of having a single conveying path that handles both production and waste removal, the system inverts the approach by creating separate dedicated paths: one for valuable product conveyance and another for waste disposal. This inversion simplifies control logic and improves efficiency by preventing waste material from interfering with the main production stream

Inventive Principle:
Principle #13The other way round (Inversion)

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

The device significantly shortens the button product fabrication time by automating the placement of printing media and enabling rapid conveyance to the die unit.

Implementation Method 1

a one-way clutch, and the one-way clutch is configured to: transmit a drive force to the conveying rollers when rotating in a first rotation direction; and not to transmit the drive force to the conveying rollers when rotating in a second rotation direction which is a direction opposite to the first rotation direction

Methodology Applied
Scientific EffectOne-way clutch mechanism: Ratchet

Implementation Method 2

The conveying unit includes: a plurality of conveying rollers; and a one-way clutch

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4646961A1Can product fabricating device
Publication Date: 2025.11.12 BROTHER KOGYO KK
  • EP4646961A1 patent drawingFigure 1
  • EP4646961A1 patent drawingFigure 2
  • EP4646961A1 patent drawingFigure 3

AI summary

To provide a button product fabricating device capable of shortening a button product fabricating time. The button product fabricating device is configured to fabricate a button product by connecting a front member and a back member, and includes: a printing unit configured to perform printing on a printing medium; a die unit configured to connect the front member and the back member; and a conveying unit configured to convey the printing medium onto the front member along a conveying path from the printing unit toward the die unit. The conveying unit includes a plurality of conveying rollers and a one-way clutch, and the one-wary clutch is configured to transmit a drive force to the conveying rollers when rotating in a first rotation direction and not to transmit the drive force to the conveying rollers when rotating in a second rotation direction which is a direction opposite to the first rotation direction.