Motorized Backdrop Spool Lifting System

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Solution Overview

Problem

Current backdrop systems for photography and stage productions are inconvenient and dangerous to change, as they require climbing ladders and can damage expensive backdrops when replaced, and lack effective storage solutions, leading to damage and a less-than-professional atmosphere.

Innovation Solution

A backdrop system featuring a spool with a lifting device that allows vertical adjustment from ground level to ceiling, enabling safe and easy changing of backdrops without ladders, and includes a storage system for preserving and organizing multiple backdrops.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If backdrops are suspended high above the floor, then the backdrop can be displayed properly for photography and stage productions, but the user must climb a ladder to change the backdrop which is inconvenient and dangerous

Engineering Contradiction:
Improvebackdrop display positionVSAvoidbackdrop changing safety
Core Design Contradiction:
Illumination intensityVSEase of operation

Solution Approach 1:

The system divides the backdrop into multiple sections that can be independently handled. Each backdrop is mounted on a separate spool that can be individually lowered, replaced, and raised, allowing safe ground-level operation while maintaining proper display height

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A motorized lifting device acts as an intermediary between the user and the backdrop. The device includes a motor, drum, and cable system that automatically raises and lowers backdrops, eliminating the need for users to climb ladders while maintaining proper display positions

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If traditional tools like wrenches and screwdrivers are used to change backdrops, then the backdrop can be securely attached, but the process becomes complex and time-consuming

Engineering Contradiction:
Improvebackdrop attachment securityVSAvoidtool requirements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The attachment mechanism transitions from static mechanical fastening to dynamic magnetic attachment. The magnetic system allows backdrops to be securely attached and detached without tools, while the motorized lifting device provides the necessary force for secure mounting

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Traditional mechanical fastening tools (wrenches, screwdrivers) are replaced with a magnetic attachment system. The magnetic force provides secure attachment while allowing tool-free operation, and the motorized lifting device handles the mechanical work of raising and lowering heavy backdrops

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Quantity of substance

If backdrops are stored in piles or on shelves, then storage space is utilized, but the backdrops may suffer additional damage and are not readily available

Engineering Contradiction:
Improvebackdrop storage capacityVSAvoidbackdrop preservation
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The spool system serves multiple functions: it acts as both the display mechanism and the storage solution. Backdrops are wound on spools that can be stored vertically in a dedicated storage area, protecting them from damage while keeping them readily available for quick deployment

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

Solution Approach 2:

Backdrops are pre-mounted on spools and stored in an organized vertical arrangement before use. This preliminary preparation ensures they are protected from damage during storage and can be quickly deployed by simply lowering the appropriate spool without handling or folding

Inventive Principle:
Principle #10Preliminary action

4Productivity

If multiple backdrops are mounted on a rotating wheel, then backdrop changing is simplified, but the system becomes expensive and requires replacement of the entire wheel for new backdrops

Engineering Contradiction:
Improvebackdrop changing speedVSAvoidsystem cost
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Instead of a single integrated wheel system, the patent uses multiple independent spools that can be individually mounted and removed. Each spool is a separate, interchangeable unit that can be replaced without affecting other backdrops or the lifting mechanism

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from a fixed wheel configuration to a dynamic, interchangeable spool system. Backdrops can be added, removed, or replaced individually by detaching and reattaching spools to the lifting device, providing flexibility without requiring complete system replacement

Inventive Principle:
Principle #15Dynamics

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 quick and safe backdrop changes at any height, reduces damage to expensive materials, and provides a professional setup while ensuring the longevity and availability of backdrops.

Implementation Method 1

The lifting device can be motorized or manually operated

Methodology Applied
Scientific EffectElectric motor:

Implementation Method 2

A rolling device is also connected to the spool for rolling and unrolling the backdrop on the spool

Methodology Applied
Scientific EffectRotation:

Data Source

PatentUS7480448B2Rapidly changeable photographic and stage backdrop lifting device
Publication Date: 2009.01.20 EASY STUDIO ELEVATOR
  • US7480448B2 patent drawing
  • US7480448B2 patent drawing
  • US7480448B2 patent drawing

AI summary

This invention relates to the use of suspended materials as a backdrop for photography or stage productions. The suspended materials may be stored on a spool device. Such spool devices may include tubes or spindles constructed of metal, of cardboard, of plastic or other lightweight and inexpensive materials. The spool device may also include means for attaching the tube or spindle to a lifting device. Such attachment means may include a pair of interconnectable coupling devices, one fixed to the spool and the second attached to the lifting device.