Oscillating Wedge Accessory for Fast Electrical Box Openings

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing oscillating power tools lack efficient and versatile accessories for quickly and accurately creating openings for electrical gang boxes, outlets, and switches without the need for extensive measuring and aligning.

Innovation Solution

The development of an oscillating accessory with a planar wedge-shaped working portion featuring distinct cutting edges and teeth configurations, allowing for tool-free attachment to power tools, which can efficiently cut openings of various sizes and shapes by plunging into a workpiece in multiple directions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional oscillating power tool accessories are used, then the tool can perform basic cutting tasks, but it requires extensive measuring and aligning to create openings for electrical gang boxes, outlets, and switches

Engineering Contradiction:

Improveease of creating openingsVSAvoidtime for measuring and aligning

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The accessory incorporates pre-configured cutting edges and guide features that are prepared in advance during manufacturing. The guide features include pre-set angles and dimensions that correspond to standard electrical box openings, eliminating the need for on-site measuring and aligning operations

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The accessory is designed with multiple cutting edges and adjustable features that enable it to create various sizes and shapes of openings for different electrical components (gang boxes, outlets, switches). This multi-functional design allows a single accessory to replace multiple specialized tools

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If a single accessory is designed to create openings of various sizes and shapes, then versatility is improved, but the accessory complexity increases

Engineering Contradiction:

Improveability to create various opening sizes and shapesVSAvoidaccessory structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The accessory is divided into distinct functional segments including multiple cutting edges, guide features, and attachment portions. Each segment performs a specific function, and the modular structure allows the complex accessory to be manufactured and maintained more easily despite its overall versatility

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The accessory incorporates asymmetric cutting edges and guide features with specific angles and configurations that enable it to create symmetric and asymmetric openings of various shapes. The asymmetric design of the accessory itself allows it to generate symmetric patterns in the workpiece

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS12551955B2Accessories for oscillating power tools

Publication Date: 2026.02.17 BLACK & DECKER CORP

AI summary

An accessory for an oscillating power tool includes an attachment portion configured to be coupled to an oscillating power tool and a working portion coupled to the attachment portion and extending generally along a longitudinal axis. The working portion has a generally planar wedge shape bounded at least partially by a rear non-cutting end with a first width, a front cutting edge opposite the rear edge with a second width that is greater than the first width, a first side cutting edge extending from a first end of the rear end to a first end of the front cutting edge at a first angle to the longitudinal axis, and a second side cutting edge opposite the first side cutting edge and extending from a second end of the rear end to a second end of the front cutting edge at a second angle to the longitudinal axis.