Winding Device Pivoting Arm Tiltable Deflection Element

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Solution Overview

Problem

Existing winding devices struggle to achieve a positive winding pattern while maintaining a compact installation space, as they often require large installation spaces and are not efficient in managing the run-up and winding angles of the rope.

Innovation Solution

A winding device with a pivoting arm and a tiltable deflection element, where the deflection element is mounted to be tiltable about a tilting axis along the longitudinal axis of the pivoting arm, allowing for a run-up angle and winding angle of 3° independently of the length of the pivoting arm.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a fixed rope pole is used to maintain a run-up angle of at most 3°, then a positive winding pattern is achieved, but the installation space required becomes excessively large

Engineering Contradiction:
Improvewinding pattern precisionVSAvoidinstallation space
Core Design Contradiction:
Manufacturing precisionVSArea of stationary object

Solution Approach 1:

The patent applies the dynamics principle by making the rope guide pivotable about a pivot axis instead of being fixed. The pivoting arm can change its position dynamically during operation, allowing the deflection element to be positioned at different radial distances from the rotation axis. This dynamic adjustment enables maintaining a run-up angle of at most 3° while significantly reducing the installation space compared to fixed rope pole arrangements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies parameter changes by allowing the radial spacing of the deflection element from the rotation axis to vary as the pivoting arm moves. The run-up angle is determined by both the radial spacing and axial spacing parameters. By changing these parameters through pivoting movement, the system achieves the required 3° run-up angle with a compact configuration rather than requiring the large fixed spacing of traditional rope poles.

Inventive Principle:
Principle #35Parameter changes

2Area of stationary object

If the pivoting arm is positioned close to the rope drum to reduce installation space, then the device becomes more compact, but it becomes difficult to maintain the run-up angle at 3° across the entire width of the rope drum

Engineering Contradiction:
Improveinstallation spaceVSAvoidrun-up angle consistency
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

The patent applies dynamics by making the deflection element tiltable about a tilting axis that extends along the longitudinal axis of the pivoting arm. This tilting capability allows the deflection element to adjust its orientation dynamically as the pivoting arm moves to different positions, enabling the system to maintain a consistent run-up angle of 3° across the entire width of the rope drum even when the pivoting arm is positioned close to the drum for compact installation.

Inventive Principle:
Principle #15Dynamics

3Area of stationary object

If a winding arm with a deflection roller is used to reduce installation space, then the device occupies less space, but the run-up angle becomes difficult to control and may exceed 3°

Engineering Contradiction:
Improveinstallation spaceVSAvoidrun-up angle control
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

The patent applies dynamics by making both the pivoting arm pivotable about a pivot axis and the deflection element tiltable about a tilting axis. This dual-degree-of-freedom dynamic configuration provides precise control over the run-up angle. The pivoting arm allows radial positioning adjustment while the tiltable deflection element enables orientation adjustment, together providing fine control to maintain the run-up angle at or below 3° throughout the winding process.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies parameter changes by controlling both the radial spacing (through pivoting arm position) and axial spacing (through deflection element tilting) parameters. This dual parameter control enables precise adjustment of the run-up angle, ensuring it remains at or below 3° even in the compact configuration where the pivot axis is positioned close to the rope drum.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12312209B2Winding device
Publication Date: 2025.05.27 ROTZLER GMBH & CO
  • US12312209B2 patent drawing
  • US12312209B2 patent drawing
  • US12312209B2 patent drawing

AI summary

A winding device is for winding a rope onto a rope drum rotatable about a rotation axis. The winding device includes a rope guide for feeding the rope to the rope drum. The rope guide has a pivoting arm having a longitudinal axis and has a deflection element. The pivoting arm is pivotable about a pivot axis. The deflection element is disposed on the pivoting arm. The winding device is conceived such that the rope when being wound onto the rope drum passes the pivoting arm before the deflection element. The rope guide includes a delimitation element. The delimitation element is disposed such that a pivoting movement of the pivoting arm about the pivot axis is limited to a critical angular range. The deflection element is tiltable about a tilting axis. The tilting axis extends along the longitudinal axis of the pivoting arm.