Spring-Loaded Block Device to Prevent Drawer and Door Finger Crushing

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Solution Overview

Problem

Existing solutions fail to prevent accidental injuries caused by drawers or doors closing unexpectedly, as they do not address the issue of open or unlocked states that can lead to harm.

Innovation Solution

A device with a base that adheres to the object, a block to prevent closure, and a spring that keeps the block elevated until manually compressed, allowing safe closure by ensuring a gap for fingers to escape.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a drawer or door is allowed to close freely without restriction, then ease of operation is improved, but safety is worsened due to risk of accidental finger crushing

Engineering Contradiction:
Improveease of drawer closureVSAvoidfinger crushing hazard
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A block is introduced as an intermediary element between the drawer and the closing force. This block physically intervenes in the closing process, creating a protective barrier that prevents direct contact between the closing drawer and the user's fingers, thereby resolving the contradiction between ease of operation and safety

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The block is positioned in advance to counteract the harmful closing action before it can occur. By having the block already in place at the gap location, the system prepares a preventive measure that automatically opposes any dangerous closure motion, eliminating the need for reactive safety mechanisms

Inventive Principle:
Principle #9Preliminary anti-action

2Object-affected harmful factors

If a block is used to prevent drawer closure, then safety is improved by creating a finger escape gap, but ease of operation is worsened due to restricted closure

Engineering Contradiction:
Improvefinger crushing preventionVSAvoiddrawer closure restriction
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The block provides protection only at the specific location where finger injury is most likely to occur (the gap area), while allowing the rest of the drawer to close normally. This localized approach ensures safety at critical points without unnecessarily restricting overall drawer operation

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The block prevents only the excessive closing motion that would cause injury, while allowing sufficient closure to maintain drawer functionality. The protective action is calibrated to be just enough to prevent harm without completely blocking normal operation

Inventive Principle:
Principle #16Partial or excessive action

3Object-affected harmful factors

If the block is always in position to prevent closure, then safety is maintained, but the drawer cannot close fully when needed

Engineering Contradiction:
Improvecontinuous protectionVSAvoidfull closure capability
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The block's position is made dynamic rather than static. It automatically adjusts its location based on the drawer's state - positioned to prevent closure when the drawer is open, and retracted or moved aside when the drawer needs to close fully. This dynamic behavior allows the system to provide continuous protection while maintaining full closure capability when necessary

Inventive Principle:
Principle #15Dynamics

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

Prevents accidental injuries by maintaining a gap between the object and the block until the spring is compressed, allowing safe closure and avoiding harm.

Implementation Method 1

The first, a base that adheres to the object, ie a door, drawer, etc

Methodology Applied
Scientific EffectAdhesive: Adhesive

Implementation Method 2

The third, a spring connected to the base and block that pushes the block out to prevent the object from being closed fully

Methodology Applied
Scientific EffectSpring force: Spring

Data Source

PatentUS20220034141A1Finger Saver
Publication Date: 2022.02.03 MARSALISI ERIN
  • US20220034141A1 patent drawing
  • US20220034141A1 patent drawing
  • US20220034141A1 patent drawing

AI summary

Our device will prevent doors/drawers from being fully closed haphazardly. Our invention is new because all objects out there prevent the doors/drawers from being opened while our product solves the unexpected accidents that can occur when those doors/drawers are already open but could cause harm or damage if unintentionally or mindlessly closed. Our product prevents the closing of an object, not the opening of said object.