Mailbox

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Solution Overview

Problem

Mailboxes in rural areas often lack visibility for incoming mail and protection for sensors and cameras due to insufficient lighting and potential damage from mail contents, especially when placed in dark or hard-to-reach locations.

Innovation Solution

A mailbox design equipped with light emitting devices, sensors, and a flag system that uses a solar panel for power, allowing for remote monitoring and notification of mail presence or absence, and protecting internal components from damage through an inner shell that conceals devices from mail contents.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If cameras or sensors are mounted inside the mailbox to communicate mail presence, then mail notification capability is improved, but the sensors are vulnerable to damage from mail contents

Engineering Contradiction:
Improvemail notification capabilityVSAvoidsensor protection
Core Design Contradiction:
Loss of informationVSReliability

Solution Approach 1:

The mailbox is divided into two shells: an outer shell that receives mail contents and an inner shell that houses the protected sensors and cameras. This segmentation isolates the sensitive electronic components from direct contact with mail contents while maintaining their monitoring function.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The inner shell containing the sensors and cameras is nested within the outer shell that receives mail. This nested structure allows the monitoring system to be protected inside while still being able to detect and communicate mail presence through the outer shell's opening.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If the mailbox is positioned in remote rural areas, then delivery accessibility is improved, but visual identification of mail presence becomes difficult

Engineering Contradiction:
Improvedelivery accessibilityVSAvoidvisual identification
Core Design Contradiction:
Ease of operationVSIllumination intensity

Solution Approach 1:

A flag mechanism is implemented that changes position (and can be associated with color changes) to indicate mail presence. The flag can be raised or lowered to provide clear visual signals to both delivery personnel and mailbox owners about the status of mail contents.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

Electronic sensors and cameras act as intermediaries between the mail contents and the mailbox owner. These devices detect mail presence and transmit this information electronically, replacing the need for direct visual inspection and enabling reliable communication even in remote locations.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If lighting is insufficient at the mailbox location, then remote positioning is enabled, but visual detection of mail becomes impossible

Engineering Contradiction:
Improveremote positioning capabilityVSAvoidmail visibility
Core Design Contradiction:
Adaptability or versatilityVSIllumination intensity

Solution Approach 1:

The mechanical/visual system of directly viewing mail is replaced with an electronic sensing and communication system. Sensors, cameras, and notification devices substitute for human visual detection, allowing the mailbox to function effectively in locations with insufficient natural lighting.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

Enhances visibility and security of mail delivery, protects internal components from damage, and provides remote monitoring capabilities, improving user experience and security.

Implementation Method 1

A mailbox design equipped with light emitting devices, sensors, and a flag system that uses a solar panel for power

Methodology Applied
Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Data Source

PatentUS10499757B2Mailbox
Publication Date: 2019.12.10 BRADISH GREGORY M
  • US10499757B2 patent drawing
  • US10499757B2 patent drawing
  • US10499757B2 patent drawing

AI summary

A mailbox comprises an outer shell and an inner shell mounted within a hollow interior of the outer shell, the inner shell defining a hollow interior for receiving mail contents and further defining one or more voids with the outer shell. A door is mounted of a movement to selectively open or close one end of the outer and inner shells. A camera is concealed in one void adjacent the front end, the camera being configured to capture an image in front of the mailbox when the door is moved to at least partially expose the hollow interior for receiving mail contents. A transmitter and a receiver are mounted adjacent the front end to generate an output signal when the mail contents break the light beam therebetween. A flag rotates on the outer shell and actuates a switch to annunciate a presence of the mail contents within the mailbox.