Rotatable Roller Arm Assembly for Repositionable Tape Removal Spools

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Solution Overview

Problem

Existing machines for removing temporary marking tapes from roads and paved surfaces require significant labor and time, and existing boom arm designs do not allow for easy repositioning or transportation of the spool assembly.

Innovation Solution

A roller arm assembly with a pivotally attached spool lower weldment and a rotatable spool upper weldment, enabled by a turntable and locking pin system, allowing the spool assembly to be positioned on either side or in front of the machine for efficient tape removal and transportation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the spool assembly is fixed in a single position on the chassis, then the structure is simple and stable, but the machine cannot be easily repositioned or transported

Engineering Contradiction:
Improverepositioning of spool assemblyVSAvoidspool assembly support structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The spool assembly support structure is designed with dynamic characteristics, allowing it to be moved from a raised operational position to a lowered transportation position. The support includes a support arm that can be positioned at different angles and secured with locking pins, enabling the spool assembly to be repositioned between sides or placed in front of the chassis for easy transportation while maintaining structural stability during each position.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the spool assembly is made movable to facilitate transportation, then ease of operation improves, but structural stability may be compromised

Engineering Contradiction:
Improvepositioning flexibility of spool assemblyVSAvoidspool assembly support stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The support structure incorporates dynamic positioning capabilities with multiple fixed positions rather than continuous movement. The support arm can be locked at specific angles using locking pins, providing both versatility in positioning (spool can be on either side or in front) and stability when locked in place during operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The locking pin system acts as an intermediary mechanism between the movable support arm and the chassis. The locking pins engage with holes in the support arm to secure it in desired positions, ensuring stability during operation while allowing easy repositioning when needed. This intermediary locking mechanism resolves the conflict between movability and stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10926969B1Roller arm assembly for temporary tape removal machine
Publication Date: 2021.02.23 SHEA JAMES P
  • US10926969B1 patent drawing
  • US10926969B1 patent drawing
  • US10926969B1 patent drawing

AI summary

A roller arm assembly for a temporary tape removal machines which roller assembly supports a spool assembly on a vehicle that removes temporary tape from a pavement surface. The roller assembly is attached to a chassis or frame of the vehicle and is pivotal between a raised and lowered position. The roller assembly includes a lower arm member and an upper arm member which are rotatably coupled together. The upper arm member supports a spool assembly and a hydraulic motor that rotates the spool assembly. The upper arm of the roller assembly can be rotated with respect to the lower arm to allow the spool assembly to be position on either side of the vehicle chassis or frame.