Emergency Bathroom Access Tool Lever Mechanism

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current methods for accessing a locked bathroom stall door in emergency situations are cumbersome, time-consuming, and potentially dangerous, as they often require crawling or climbing, and existing locksmith tools are structurally complex, bulky, and unsuitable for quick use in rescue scenarios.

Innovation Solution

A portable hand tool, the Emergency Bathroom Access Tool (EBAT), designed to be inserted through the stall door and partition wall to leverage the latch lock, allowing easy opening with minimal weight, bulk, and intuitive use, suitable for rapid deployment and versatile in handling various latch types.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional methods (crawling under door or climbing over wall) are used to access locked stall door, then access can be achieved, but the process is time-consuming and potentially dangerous

Engineering Contradiction:

Improvesafety of access methodVSAvoidtime to gain access

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent introduces an intermediary tool (the emergency access device with shaft and engagement portion) that mediates between the rescuer and the locked latch mechanism. This device allows direct manipulation of the latch from outside the stall without requiring physical contact with the door or climbing, thereby resolving the contradiction by providing a safe yet rapid access method

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the manual mechanical actions of crawling or climbing with a specialized tool that uses a shaft and engagement portion to mechanically manipulate the latch release mechanism from a distance. This substitution eliminates the dangerous physical maneuvers while maintaining quick access capability

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If specialized locksmith tools are used to open locked doors, then access can be achieved, but the tools are structurally complex and bulky

Engineering Contradiction:

Improveeffectiveness of opening methodVSAvoidstructural complexity of tool

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the emergency access tool into distinct functional segments: a shaft portion for insertion, an engagement portion for interacting with the latch, and a handle portion for user control. This segmentation allows each component to be optimized for its specific function while keeping the overall tool simple and manageable, resolving the contradiction between effectiveness and complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent extracts only the essential functional elements needed for emergency latch manipulation, eliminating unnecessary components found in traditional locksmith tools. By taking out only what is necessary (shaft, engagement portion, handle), the tool achieves high effectiveness with minimal structural complexity

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of operation

If existing emergency access tools are used, then door opening capability is achieved, but the tools are cumbersome and difficult to store

Engineering Contradiction:

Improveease of useVSAvoidbulk of tool

Core Design Contradiction:

Ease of operationVSVolume of moving object

Solution Approach 1:

The patent designs the emergency access tool so that the shaft and engagement portion can be stored within or alongside the handle portion when not in use. This nesting arrangement minimizes the volume occupied by the tool during storage while maintaining full functionality during operation, resolving the contradiction between ease of use and compactness

Inventive Principle:

Principle #7Nested doll (Nesting)

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 EBAT enables quick and safe access to individuals in distress by simplifying the process of opening bathroom stall doors, reducing the risk of injury and improving response efficiency in emergency situations, with a high success rate and ease of storage.

Implementation Method 1

make contact with the stall door latch lock lever handle and slide or pivot the lock to the unlocked position

Methodology Applied

Scientific EffectLever: Lever

Implementation Method 2

using said tool as a lever, make contact with the stall door latch lock lever handle

Methodology Applied

Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS9874041B1Portable tool for emergency access to a privacy partition

Publication Date: 2018.01.23 BRISCOE JAMES DANA

AI summary

An emergency access tool is designed to unfold into unique geometrical shapes that allow for the tool to act as a Class 1 lever to access a locked privacy partition stall door from the outside area thereof. The tool provides a handle to impart input force, a shaft rotatable out of a collapsed position of storage within the handle into alternative fixed operating positions with respect to the handle, a proximal portion of the shaft having a reduced diameter intermediate section, the intermediate section providing a fulcrum point where leverage is achieved while the tool is inserted within the door seam of the partition, and a distal end section which maintains a substantially perpendicular orientation with respect to the shaft during use of the tool. The end section of the tool is sized and adapted to make contact with the interior door lock of the partition and impart the output force necessary to unlock the lock latch and allow entry into the privacy partition stall.