Hitch Insert Button Assembly for Safe Coupling

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Solution Overview

Problem

Existing mechanisms for coupling and decoupling hitch inserts from hitches pose a risk of user extremities getting caught during installation and removal, and are often cumbersome.

Innovation Solution

A button assembly is integrated with the hitch insert, featuring a button that can be pressed to allow insertion and removal while maintaining a flush surface with the hitch insert, preventing extremity entrapment and facilitating quicker operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a pin or bolt mechanism is used to couple the hitch insert to the hitch, then the coupling is secure, but the mechanism becomes cumbersome and increases the risk of user extremities getting caught during installation and removal

Engineering Contradiction:
Improvecoupling securityVSAvoidinstallation and removal ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent extracts the dangerous pin insertion/removal operation from the user's direct interaction. Instead of requiring users to manually insert and remove pins through apertures, the system uses a button mechanism that triggers internal release, removing the hazardous action from user extremities while maintaining secure coupling during transport

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The button assembly acts as an intermediary between the user and the coupling mechanism. Users press the button to initiate release, which then triggers the internal mechanism to disengage the hitch insert from the hitch, providing a safe intermediate step that eliminates direct hand insertion into apertures

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a pin or bolt mechanism is used to couple the hitch insert to the hitch, then the coupling is secure, but the device complexity increases

Engineering Contradiction:
Improvecoupling securityVSAvoidmechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the button assembly with the hitch insert structure, integrating the release mechanism into the existing component rather than adding a separate complex system. The button, elongate member, and release feature are combined into a unified assembly that works with the hitch insert's existing apertures and structure

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The button assembly serves multiple functions: it provides the release trigger, guides the elongate member movement, and interfaces with the hitch insert's aperture system. This multi-functionality reduces the need for additional separate components, simplifying the overall device while maintaining secure coupling

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If the button surface protrudes from the hitch insert outer surface, then the button is easier to press, but the risk of user extremity entrapment increases

Engineering Contradiction:
Improvebutton pressabilityVSAvoidextremity entrapment risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary anti-action by designing the button surface to remain flush with or recessed from the hitch insert outer surface, preventing the harmful condition of protrusion before it can occur. This design choice proactively eliminates the entrapment hazard while the button's internal mechanism ensures it remains sufficiently pressable for operation

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS10324486B1Hitch insert coupling and release mechanism
Publication Date: 2019.06.18 ALLEN GLOBAL FZCO
  • US10324486B1 patent drawing
  • US10324486B1 patent drawing
  • US10324486B1 patent drawing

AI summary

A button assembly that couples and releases a hitch insert to and from a hitch is described. A button of the button assembly may be configured to be pressed to a degree that allows the hitch insert to be inserted into and removed from a hitch. However, the button assembly may be configured to prevent a user's finger (or other extremity) from entering an aperture of the hitch insert that accommodates the button. For example, in a pressed orientation, a surface of the button that a user contacts may remain flush (or substantially flush) with an outer surface of the hitch insert.