Staple Driver Arm Regulator for Binding Position Accuracy

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing sheet processing devices experience mechanical deviation and staple buckling during the binding process due to low rigidity in the short length direction of the staple driver, leading to shifts in the binding position and inadequate staple driving.

Innovation Solution

Incorporating a regulator mechanism with a pin and guide system that extends in the short length direction of the arm perpendicular to the staple driving direction to stabilize the staple driver and prevent deviation, along with an arm that rotates to facilitate staple driving while reducing twisting forces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the arm extends in a long length direction to operate the staple driver, then the staple driver can reach the binding position, but the rigidity in the short length direction becomes relatively low causing mechanical deviation and binding position shift

Engineering Contradiction:

Improvearm lengthVSAvoidrigidity

Core Design Contradiction:

Length of moving objectVSStability of the object's composition

Solution Approach 1:

A regulator is introduced as an intermediary component between the arm and the staple driver. The regulator includes a guide member with a guide hole that receives a pin from the arm, constraining the staple driver's movement path. This intermediary structure provides the necessary rigidity and positional stability without requiring the arm itself to be excessively rigid in the short length direction.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Length of moving object

If the arm extends in a long length direction, then the staple driver can be positioned appropriately, but twisting force in the short length direction causes mechanical deviation and staple buckling

Engineering Contradiction:

Improvearm lengthVSAvoidstaple driving accuracy

Core Design Contradiction:

Length of moving objectVSReliability

Solution Approach 1:

The regulator acts as a mediator that eliminates twisting forces by providing a constrained linear movement path for the staple driver. The guide member with guide hole and pin arrangement ensures the staple driver moves only in the intended direction, preventing twisting moments that would otherwise cause mechanical deviation and staple buckling.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The regulator pre-constrains the movement path of the staple driver before the actual stapling operation occurs. By establishing the guide hole and pin arrangement in advance, the system prevents deviation and buckling from occurring during the critical moment of staple driving, rather than attempting to correct these issues after they arise.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS10082759B2Sheet processing device and image forming system

Publication Date: 2018.09.25 KONICA MINOLTA INC

AI summary

A sheet processing device includes: an accumulator on which sheets are accumulated; a staple driver; a staple receiver disposed at a position facing the staple driver, wherein the staple driver drives a staple into the sheets when the sheet are between the staple receiver and the staple driver; an arm that extends from the staple driver in a direction perpendicular to a staple driving direction to operate the staple driver in the staple driving direction; and a regulator that regulates deviation produced when the staple driver drives the staple. The deviation is in a short length direction of the arm perpendicular to a long length direction of the arm and to the staple driving direction.