Double Safe With Nested Auxiliary Safe for Quick Access

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Solution Overview

Problem

Large safes with complex locking mechanisms and heavy doors are cumbersome, making them less appealing for frequent access or emergency situations.

Innovation Solution

A double safe design featuring an exterior primary housing with a primary lock and a secondary housing within, equipped with a secondary lock, allowing separate access to both compartments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a large safe with heavy door and complex locking mechanism is used to prevent theft, then security against removal is improved, but ease of access for frequent use deteriorates

Engineering Contradiction:
Improvesecurity against removalVSAvoidease of access
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The safe is divided into two independent compartments: a primary safe with heavy construction for security and a secondary safe for frequent access. Each compartment can be accessed independently through its own door and locking mechanism, allowing users to open only the smaller secondary safe for routine items without moving or opening the heavy primary safe.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The secondary safe is nested within the primary safe structure. The secondary housing is positioned inside the primary housing, and the secondary door is pivotally coupled to the primary door. This nested configuration allows the smaller secondary safe to be integrated into the larger primary safe while maintaining independent access capabilities.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If a large safe with heavy door is used to hinder theft, then security is improved, but speed of access in emergencies deteriorates

Engineering Contradiction:
ImprovesecurityVSAvoidspeed of access
Core Design Contradiction:
ReliabilityVSSpeed

Solution Approach 1:

The safe system is segmented into two independently accessible compartments. Emergency items can be stored in the secondary safe, which has its own lightweight door and locking mechanism. In an emergency situation, users can quickly open the secondary safe without the time-consuming task of opening the heavy primary safe door.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The secondary safe provides partial access to the overall safe system, allowing users to retrieve only the items they need without opening the entire primary safe. This partial action principle enables faster access to frequently needed or emergency items while maintaining the security of the full system.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS20250290371A1Safe with auxiliary safe
Publication Date: 2025.09.18 THE HEADREST SAFE IP CO LLC
  • US20250290371A1 patent drawing
  • US20250290371A1 patent drawing
  • US20250290371A1 patent drawing

AI summary

A double safe has a primary housing and a primary door pivotally coupled to the primary housing through primary hinges to define a primary safe with a primary interior space. The primary door has a primary lock. The double safe includes a secondary safe that may be mounted to the primary door. The secondary safe includes a secondary housing and a secondary door with a secondary lock. The secondary housing defines an auxiliary or second interior space. Optionally, the secondary safe may be mounted to the primary housing.