Suction Cup With Threaded Expansion Control for Cellophane Seals

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Solution Overview

Problem

Current vacuum crane games struggle to effectively pick up prizes with cellophane packaging, such as snacks and foodstuffs, due to the inability of suction cups to maintain a seal on uneven surfaces, leading to unsuccessful prize capture.

Innovation Solution

The introduction of an adhesively applied target with a diameter that matches the suction cup, allowing precise attachment, and the use of a threaded member within the suction cup to control expansion, ensuring a secure seal and preventing rim expansion beyond the target's width.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a suction cup is used to pick up cellophane-wrapped prizes, then the prize capture capability is improved, but the seal reliability deteriorates due to uneven surfaces

Engineering Contradiction:
Improveprize capture capabilityVSAvoidseal reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The invention divides the prize into two functional parts: the cellophane-wrapped prize body and the rigid target attached to it. The suction cup only needs to seal with the rigid target, not the flexible cellophane surface, thereby resolving the seal reliability issue while maintaining versatility in picking up various packaged prizes

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The rigid target acts as an intermediary between the suction cup and the cellophane-wrapped prize. It provides a stable sealing surface for the suction cup while being attached to the flexible prize, enabling reliable prize capture without requiring the suction cup to directly seal with the uneven cellophane surface

Inventive Principle:
Principle #24Intermediary (Mediator)

2Area of stationary object

If the suction cup expands during attachment, then the seal area increases, but the rim moves radially outward and breaks the seal on cellophane surfaces

Engineering Contradiction:
Improveseal areaVSAvoidseal integrity
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The invention separates the sealing function from the prize body by attaching a rigid target to the cellophane-wrapped prize. The suction cup seals with the rigid target which does not expand or deform, preventing seal breakage while still enabling capture of the flexible prize through the attached target

Inventive Principle:
Principle #1Segmentation

3Manufacturing precision

If the target diameter matches the suction cup diameter, then the attachment precision is improved, but the difficulty of detecting and measuring increases

Engineering Contradiction:
Improveattachment precisionVSAvoidtarget alignment difficulty
Core Design Contradiction:
Manufacturing precisionVSDifficulty of detecting and measuring

Solution Approach 1:

The invention makes the target visually distinct from the suction cup by using different colors or patterns. This asymmetry in visual appearance helps players easily detect and locate the target during gameplay, reducing the difficulty of alignment while maintaining the precision benefits of matched diameters

Inventive Principle:
Principle #4Asymmetry

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

Enables reliable capture and retention of cellophane-wrapped prizes by maintaining a consistent seal and adjusting the suction cup's expansion, enhancing gameplay difficulty and success rates.

Implementation Method 1

A vacuum cup creates a suction force that is used to pick up and hold prizes

Methodology Applied
Scientific EffectSuction: Suction

Implementation Method 2

The negative pressure inside the cup due to the vacuum tube is sufficient to connect the prize to the cup

Methodology Applied
Scientific EffectVacuum: Vacuum

Implementation Method 3

The target is affixed to the prize with an adhesive sufficient to maintain a seal against the suction cup when under vacuum pressure

Methodology Applied
Scientific EffectAdhesive: Adhesive

Data Source

PatentUS11584597B1Suction cup system for picking up flexible plastic bags
Publication Date: 2023.02.21 STEPHEN P SHOEMAKER TRUST
  • US11584597B1 patent drawing
  • US11584597B1 patent drawing
  • US11584597B1 patent drawing

AI summary

A machine for use in picking up objects having a cellophane outer covering using a vacuum, the machine comprising a housing, a vacuum source, a suction cup coupled to the vacuum source, a transport system for moving the suction cup horizontally and vertically within the housing, and a plurality of objects having a cellophane outer covering in the housing below the pick-up device. The plurality of objects include an adhesively applied target on at least one of the cellophane outer coverings, the adhesively applied target having a surface area greater than a surface area circumscribed by a lowermost edge of the suction cup, and the suction cup includes a threaded tubular member extending axially therein through, the threaded tubular member including stops that engage an upper and lower surface of the suction cup.