Interchangeable self-defense device

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Solution Overview

Problem

Conventional self-defense devices are not designed to integrate multiple functions, making it inconvenient for users to switch between different functions, thereby reducing their efficiency in various situations.

Innovation Solution

An interchangeable self-defense device consisting of two modular housings that can detachably interlock, allowing users to combine different self-defense functions such as pepper spray, flashlights, stun guns, or expandable batons into a single unit, enabling quick switching between functions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional self-defense devices are used individually, then each device has a specific function, but it is inconvenient for users to switch between different functions

Engineering Contradiction:

Improvefunction switching capabilityVSAvoidconvenience of switching functions

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The self-defense device is divided into multiple detachable functional modules, each housing a different self-defense function (pepper spray, flashlight, expandable baton, stun gun). Users can separate and recombine these modules independently, enabling quick switching between different functions without carrying multiple separate devices.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The device employs a universal modular housing structure with standardized mounting structures that can accommodate various self-defense functions. This multi-functional design allows a single device to perform multiple self-defense tasks by simply changing the attached functional module.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Productivity

If multiple self-defense devices are carried separately, then each device can be used individually, but it reduces efficiency in responding to different situations

Engineering Contradiction:

Improveresponse efficiencyVSAvoidnumber of separate devices

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

Multiple self-defense devices with different functions are merged into a single modular system. The functional modules can be attached to or integrated with a central housing, creating one unified device that provides multiple self-defense capabilities, thereby improving response efficiency while reducing the number of separate devices needed.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The device incorporates dynamic reconfigurability, allowing users to quickly change the functional configuration by detaching and reattaching different modules. This dynamic adaptation enables the device to respond efficiently to varying threat situations without requiring multiple fixed-function devices.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10816020B2Interchangeable self-defense device

Publication Date: 2020.10.27 MOTEDO

AI summary

An interchangeable self-defense device has two self-defense devices and two modular housings, the two self-defense devices are respectively mounted in the two modular housings, and each one of the two modular housings has a mounting structure formed on a side surface of the housing. The two mounting structures of the two modular housings can detachably interlock with each other. With the interchangeable self-defense device, the user may conveniently hold the two self-defense devices together as one piece, and also can quickly switch functions from one self-defense device to another: therefore the user may optimize the defensive strategy to cope with different situations.