Sheet Medium Transfer Mechanism with Multi-Axis Guide Faces

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Solution Overview

Problem

Existing medium transferring mechanisms face challenges in smoothly transferring wide or thin sheet-shaped mediums, as they tend to jam due to protruding or bent upper portions colliding with the sides of the inserting portion when transitioning to a narrow conveyance passage.

Innovation Solution

A medium transferring mechanism with a medium inserting portion featuring raised side faces, guide faces, and an inclined third guide face to guide and press the medium into a proper position, preventing jams by ensuring smooth alignment and transfer even for wide or thin mediums.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If checks of large size are inserted into the check inserting portion, then the checks can accommodate large formats, but the upper end portions protrude upward and fall down in the lateral direction causing jamming

Engineering Contradiction:
Improvecheck size accommodationVSAvoidtransfer smoothness
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces a new spatial dimension by adding a guide face that extends in the lateral direction (width dimension) rather than only in the transferring direction. This guide face creates a three-dimensional guiding surface that constrains checks of various sizes, preventing lateral falling while maintaining the ability to accommodate large formats. The guide face forms a lateral wall that provides dimensional control without restricting size adaptability.

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

2Ease of operation

If the check inserting portion has a wide opening for easy insertion, then handling is simple, but the checks collide with the side of the inserting portion when transferring to the narrow conveyance passage

Engineering Contradiction:
Improveinsertion simplicityVSAvoidtransfer reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a guide face as an intermediary element between the wide check inserting portion and the narrow conveyance passage. This guide face acts as a transition structure that gradually guides the check from the wide insertion area to the narrow transfer area, preventing direct collision. The guide face mediates the geometric transition, allowing easy insertion while ensuring reliable transfer by controlling the check's path through the intermediate guiding surface.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the upper end portions of checks are allowed to protrude for large size accommodation, then large checks can be inserted, but folds are formed in the lateral direction causing jamming

Engineering Contradiction:
Improvelarge check insertionVSAvoidcheck integrity
Core Design Contradiction:
Adaptability or versatilityVSShape

Solution Approach 1:

The patent applies preliminary anti-action by introducing a guide face that proactively prevents lateral folding before it can occur. The guide face extends in the lateral direction to create a constraining wall that counteracts the tendency of check upper portions to fold when protruding. By providing this preventive lateral constraint, the system allows large checks to be inserted while maintaining check integrity and preventing fold formation that would cause jamming.

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS7976016B2Medium transferring mechanism and medium processor with medium inserting portion
Publication Date: 2011.07.12 SEIKO EPSON CORP
  • US7976016B2 patent drawing
  • US7976016B2 patent drawing
  • US7976016B2 patent drawing

AI summary

A medium transferring mechanism that includes a medium inserting portion into which a sheet medium is inserted, the medium inserting portion defined by a bottom face and by a first side face and a second side face which extend from the bottom face and are opposed to each other; wherein a first guide face extending toward the first side face is formed at a forward end portion of the second side face; a second guide face extending from the second side face so as to gradually get close to a medium transferring path towards a medium transferring direction is formed above the first guide face; and a third guide face inclined downward from a lower edge of the second guide face toward an upper edge of the first guide face, is formed between the first guide face and the second guide face.