Edge Surface Pressure Apparatus with Dual Rollers

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Solution Overview

Problem

Conventional clamping apparatuses are inadequate for applying pressure to the edge surfaces of large workpieces, as they are either too small to support such workpieces or lack the design to effectively apply edge pressure.

Innovation Solution

An apparatus comprising a frame, rollers, a rotation-control member, and biasing members that allow for the application of pressure to the edge surface of a workpiece by rotating and translating rollers, with a biasing member in tension to conformally contact the edge surface, enabling one-handed operation and uniform pressure application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional clamping apparatus are used to apply pressure to edge surfaces, then pressure application is achieved, but the apparatus cannot support large workpieces or effectively apply edge pressure due to design limitations

Engineering Contradiction:
Improveapplicability to large workpiecesVSAvoidspecialized clamping apparatus design
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The apparatus divides the pressure application function into two independent rollers that can operate separately on opposite faces of the workpiece. Each roller is independently mounted on the frame and can be positioned to contact different locations, allowing the system to adapt to various workpiece sizes and geometries without requiring a completely different clamping design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The apparatus is designed to perform multiple functions: it can apply pressure to edge surfaces, support large workpieces, and accommodate different workpiece configurations. The frame structure with independently movable rollers allows the same apparatus to handle various workpiece sizes and types, eliminating the need for specialized clamping devices for each application.

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

2Manufacturing precision

If a biasing member in tension is used to apply pressure, then uniform conformal contact is achieved, but the apparatus requires complex tensioning mechanisms

Engineering Contradiction:
Improveuniform pressure distributionVSAvoidbiasing member tensioning mechanism
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The biasing member is configured to change its tension parameter automatically based on the workpiece geometry. As the rollers contact the workpiece and apply pressure, the biasing member tensions to provide uniform conformal contact. The system leverages the workpiece itself as a reference to automatically adjust the pressure distribution, eliminating the need for complex external tensioning control mechanisms.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If rollers are made rotatable for easy positioning, then workpiece alignment is simplified, but pressure maintenance becomes difficult

Engineering Contradiction:
Improveworkpiece alignmentVSAvoidpressure maintenance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The rollers are designed to be dynamically controllable, transitioning between rotatable and fixed states. During positioning, the rollers rotate to align with the workpiece; during pressure application, they are fixed to maintain stable contact. This dynamic behavior allows the system to achieve both easy alignment and reliable pressure maintenance using the same mechanical components.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The apparatus maintains continuous useful action through the biasing member that constantly applies tension to keep the rollers pressed against the workpiece. This continuous force ensures that once the rollers are positioned, pressure is automatically maintained without requiring additional active control, bridging the gap between easy positioning and reliable pressure maintenance.

Inventive Principle:
Principle #20Continuity of useful action

4Ease of operation

If the apparatus is designed for one-handed operation, then ease of use is improved, but the structural complexity increases

Engineering Contradiction:
Improveone-handed operationVSAvoidapparatus structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The apparatus merges multiple functions into a single integrated structure. The frame simultaneously provides support, positioning, and pressure application capabilities. The biasing member combines tensioning and pressure control functions. This consolidation reduces the number of separate components and operations needed, enabling one-handed operation despite the sophisticated functionality.

Inventive Principle:
Principle #5Merging (Combining)

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 apparatus effectively applies pressure to the edge surface of large workpieces with minimal effort, ensuring uniform contact and adjustable pressure levels, while being supported by the workpiece itself, allowing for easy installation and removal.

Implementation Method 1

a first biasing member, which is configured to operate in tension and conformally contact at least the portion of edge surface

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a second biasing member, which is positioned, in compression, between the frame and the rotation-control member

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 3

creating a frictional coupling between the apparatus and the workpiece, which maintains the pressure

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS11001024B2Apparatuses and methods for applying pressure to edge surfaces
Publication Date: 2021.05.11 THE BOEING CO
  • US11001024B2 patent drawing
  • US11001024B2 patent drawing
  • US11001024B2 patent drawing

AI summary

An apparatus for applying pressure to at least a portion of an edge surface of a workpiece comprises a frame, a first roller, a second roller, a rotation-control member, a first biasing member, and a second biasing member. The first roller and the second roller are coupled to and are rotatable relative to the frame while at least one of the first roller or the second roller is translatable relative to the frame. The rotation-control member is coupled to and is movable relative to the frame, controlling rotation of the first roller and the second roller. The first biasing member is coupled to the first roller and to the second roller and configured to operate in tension. The second biasing member is positioned, in compression, between the frame and the rotation-control member.