Paper Sheet Partition Coupling With Friction-Release Guide

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Solution Overview

Problem

Conventional paper sheet handling apparatuses require multiple drive sources to independently raise and lower partition members, leading to a larger apparatus size and increased costs.

Innovation Solution

A paper sheet handling apparatus with a configuration where partition members, such as a roof and pusher plate, are raised and lowered using a frictional force generated by guides and pressing portions, allowing them to ascend and descend integrally or independently, eliminating the need for individual drive units.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If multiple drive sources are used to independently raise and lower partition members, then each partition member can be controlled independently, but the apparatus size increases and costs increase

Engineering Contradiction:
ImproveIndependent control of partition membersVSAvoidNumber of drive sources
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the drive functions by using a single drive source that can control multiple partition members through a shared mechanical linkage system. The pressing portion and guide structure enable one drive source to sequentially or simultaneously move multiple partitions, eliminating the need for separate drive units for each partition member.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single drive source is designed with multi-functionality to perform the work of multiple drive units. The pressing portion can engage with different partitions at different positions, allowing one drive mechanism to universally control the movement of multiple partition members through the guide structure and friction-based coupling.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Device complexity

If a common drive motor is used to raise and lower partition members, then the apparatus size is reduced, but the partition members cannot move independently

Engineering Contradiction:
ImproveNumber of drive sourcesVSAvoidIndependent movement capability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The system employs dynamic control where the pressing portion can selectively engage or disengage from different partitions based on operational requirements. This dynamic engagement mechanism allows a single drive source to provide independent movement capability to multiple partitions by adjusting which partition is currently coupled to the drive force through friction and mechanical contact.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The guide structure and pressing portion act as intermediaries between the single drive source and multiple partition members. These intermediary elements transmit and distribute the drive force selectively, enabling independent control of different partitions without requiring separate drive motors for each one.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If frictional force is used to raise and lower partition members integrally, then the apparatus design is simplified, but independent movement of partition members becomes difficult

Engineering Contradiction:
ImproveDrive mechanism structureVSAvoidIndependent partition control
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The friction-based coupling is applied locally at specific contact points between the pressing portion and the partitions through the guide structure. By controlling the local friction force at these specific locations, the system can selectively couple or decouple individual partitions from the drive source, enabling independent movement while maintaining overall structural simplicity.

Inventive Principle:
Principle #3Local quality

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 configuration simplifies the apparatus design, reduces costs, and allows efficient partition member movement to multiple positions without the need for multiple drive sources.

Implementation Method 1

a pressing portion that is fixed to the second partition and raises and lowers the first partition integrally with the second partition using a frictional force generated by pressing the guide

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

the guide has a recessed portion that cancels the frictional force, the second partition descends integrally with the first partition, and after the first partition comes into contact with the first stopper, the second partition descends independently of the first partition against the frictional force

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS12497262B2Paper sheet handling apparatus
Publication Date: 2025.12.16 FUJITSU FRONTECH LTD
  • US12497262B2 patent drawing
  • US12497262B2 patent drawing
  • US12497262B2 patent drawing

AI summary

A paper sheet handling apparatus includes: a first stopper that is in contact with a first partition at a lower limit position of the first partition; and a pressing portion that is fixed to a second partition and raises and lowers the first partition integrally with the second partition using a frictional force generated by pressing a guide. The second partition descends integrally with the first partition, and after the first partition comes into contact with the first stopper, the second partition descends independently of the first partition against the frictional force to a position where the pressing portion faces the recessed portion that cancels the frictional force. The second partition, when ascending from the position where the pressing portion faces the recessed portion to a position where the pressing portion no longer faces the recessed portion, ascends integrally with the first partition due to the frictional force.