Rigid Insert Sleeve for Paper Roll Handling

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Solution Overview

Problem

The existing methods for handling rolls of paper webs, which involve multiple magazine reels packed together, require extensive manual handling due to bulky inner sleeves, leading to high costs and inefficient space usage.

Innovation Solution

A device utilizing a rigid insert sleeve, made of materials like paper, paperboard, or cardboard, that holds multiple rolls together, allowing for simplified handling and easy removal at the point of use, reducing the need for manual handling throughout the process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If loose inner sleeves are used to hold rolls together, then the rolls can be kept in position, but extensive manual handling is required and space requirements are considerable

Engineering Contradiction:
Improveposition holding of rollsVSAvoidmanual handling
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The insert sleeve is placed inside the loose inner sleeve, creating a nested structure where the rigid insert sleeve provides structural support while the outer sleeve maintains position. This nested arrangement allows the rolls to be held securely with minimal manual intervention during transportation and handling.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The positioning function is segmented between two components: the rigid insert sleeve that provides structural integrity and the outer loose sleeve that maintains position. This segmentation allows each component to specialize in its function, reducing the need for manual handling while maintaining roll stability.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If loose inner sleeves are used to hold rolls together, then the rolls can be kept in position, but the handling process becomes extremely costly

Engineering Contradiction:
Improveposition holding of rollsVSAvoidhandling cost
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The nested structure of insert sleeve within loose sleeve creates a self-contained unit that requires minimal manual intervention. The rigid insert sleeve maintains roll positions automatically, eliminating the need for expensive manual handling operations throughout the process.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The rigid insert sleeve automatically maintains roll positions through its structural rigidity, eliminating the need for continuous manual adjustment or intervention. This self-service positioning function significantly reduces handling costs.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If rigid insert sleeves are used, then manual handling is reduced, but the insert sleeve must be removed at the point of use

Engineering Contradiction:
Improvehandling simplicityVSAvoidremoval requirement
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The insert sleeve is nested within the loose outer sleeve, which facilitates easy removal at the point of use. The outer sleeve acts as a protective casing that can be simply opened or removed, exposing the insert sleeve and rolls for use while maintaining simplicity in the removal process.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS8695801B2Device for handling of rolls
Publication Date: 2014.04.15 CORE LINK AKTIE BOLAGET
  • US8695801B2 patent drawing
  • US8695801B2 patent drawing
  • US8695801B2 patent drawing

AI summary

The present invention relates to a device for handling a number of sleeves, preferably paper sleeves, before, during and after rolling up of a paper web each thereon, at least one insert sleeve bent from a rigid material web and having a length substantially corresponding to the total length of the rolls being inserted in the rolls for simultaneous handling thereof, wherein the insert sleeve is polygonal, e.g. triangular, rectangular, etc.