Movable Cable Spooling Cart With Lightweight Rigid Base Plate

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Solution Overview

Problem

Existing movable cable spooling apparatuses are bulky and not suited for manual handling without ancillary tracking means, necessitating a lightweight and cost-effective design that allows for manual operation.

Innovation Solution

A frame with a rigid base plate supports the drum and cable guide, equipped with wheels, a handlebar, and an anchoring organ, along with a compact design and pulley system to facilitate manual handling and stability, while a motor-driven drum enhances functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a traditional single axle trailer frame is used to support the drum, then the apparatus can support cable winding operations, but the apparatus becomes bulky and unsuitable for manual handling

Engineering Contradiction:
Improvestructural stabilityVSAvoidapparatus weight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The frame is segmented into a rigid base plate for structural support and separate functional components (drum, cable guide, anchoring organ) that can be optimally positioned. This segmentation allows the base plate to be thin and lightweight while maintaining overall structural stability through strategic component placement and the triangulation effect of the anchoring organ positioning.

Inventive Principle:
Principle #1Segmentation

2Weight of moving object

If the base plate is made thin and lightweight to facilitate manual handling, then the apparatus becomes easier to move, but the structural stability may be compromised under cable load

Engineering Contradiction:
Improvebase plate weightVSAvoidstructural stability
Core Design Contradiction:
Weight of moving objectVSStability of the object's composition

Solution Approach 1:

The base plate is designed with local quality optimization - it is thin and lightweight overall but strategically reinforced at critical stress points where the drum and cable guide are mounted. The anchoring organ positioning creates a triangulated support structure that distributes loads efficiently across the base plate, allowing minimal material usage while maintaining stability.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The anchoring organ is positioned in advance on the base plate to create a predetermined stable triangulation geometry. This preliminary positioning ensures that when the apparatus is suspended or loaded, the forces are automatically distributed along optimal paths, preventing stress concentration on the thin base plate.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If the cable runs far from the base plate to accommodate drum rotation, then the drum can operate freely, but the apparatus becomes bulkier and harder to handle manually

Engineering Contradiction:
Improvedrum rotation freedomVSAvoidapparatus compactness
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The cable path is routed through the third dimension by passing under the base plate between the drum and cable guide. This vertical dimension utilization allows the cable to clear the drum rotation path while keeping the horizontal footprint minimal, maintaining apparatus compactness for manual handling while preserving full drum operational freedom.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 achieves a lightweight, compact, and stable design suitable for manual handling, with reduced stress on components and improved maneuverability, ensuring efficient cable spooling operations.

Implementation Method 1

the cable is guided by and between the first pulley and the second pulley

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

the first pulley and the second pulley that are placed on the rotatable table

Methodology Applied
Scientific EffectNormal force: Force

Implementation Method 3

the frame is equipped with wheels

Methodology Applied
Scientific EffectRolling friction: Friction

Implementation Method 4

with its wheels resting on the ground

Methodology Applied
Scientific EffectRolling motion: Wheel

Implementation Method 5

the drum is connected to a motor for driving the drum

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP4624407A1A movable cable spooling apparatus
Publication Date: 2025.10.01 METISS
  • EP4624407A1 patent drawingFigure 1~3
  • EP4624407A1 patent drawingFigure 4~6B
  • EP4624407A1 patent drawing

AI summary

A movable cable spooling apparatus (1) comprising a drum (2) and a cable (3), wherein the drum (2) is arranged for winding and unwinding the cable (3), said apparatus (1) comprising further a frame (5) provided with wheels (6) for moving the apparatus, wherein the frame (5) supports the drum (2), and said apparatus (1) further comprising a cable guide (7) forming an exit and entry for the cable (3) to be wound on or unwound from the drum (2), wherein the frame (5) is embodied as a rigid base plate (5') that supports the drum (2) and the cable guide (7), wherein the cable (3) runs adjacent to the rigid base plate (5') between the drum (2) and the cable guide (7) .