Inertial Retractable Pet Restraint for Vehicle Crash Locking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pet safety devices for vehicles are either ineffective in restraining pets during accidents or overly restrictive, leading to pet injuries and a lack of usage due to complexity or discomfort.
Innovation Solution
A pet safety restraint device featuring a cover housing with a rotatable gear piece, coil spring housing, and a retractable leash system that uses inertia to lock the pet in place, allowing limited movement while preventing forward and sideways movement during vehicle changes in motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pet safety restraint device is designed to be highly restrictive to prevent injuries during accidents, then pet safety is improved, but pet comfort and usability deteriorate
Solution Approach 1:
The restraint device transitions from a static restrictive state to a dynamic responsive state. The retractable leash allows normal movement during regular driving, then automatically locks during sudden deceleration events, providing both comfort and safety through dynamic adaptation rather than constant restriction
Solution Approach 2:
The device uses the inertial force generated during an accident to automatically trigger the locking mechanism without external intervention. The ball bearing is propelled by inertia during sudden stops and automatically engages with the gear teeth, making the safety activation self-service rather than requiring manual operation
2Ease of operation
If a pet safety restraint device is designed with simple operation to encourage usage, then ease of operation is improved, but restraint effectiveness may deteriorate
Solution Approach 1:
The device replaces complex electronic sensing and control systems with a pure mechanical inertial locking mechanism. The ball bearing and gear teeth interaction provides reliable automatic locking through mechanical principles alone, maintaining simplicity while ensuring effectiveness through proven mechanical reliability
3Reliability
If a pet safety restraint device uses an inertial locking mechanism to prevent movement during accidents, then restraint effectiveness is improved, but device complexity increases
Solution Approach 1:
The device applies complexity only where needed for the locking function (the gear piece with teeth and ball bearing interaction) while keeping the rest of the structure simple. The housing and retractable leash mechanism remain straightforward, concentrating the mechanical complexity locally in the inertial locking component
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
Effectively restrains pets during accidents by using inertia to lock the retractable leash, preventing injuries while allowing pets to have some freedom of movement, thus encouraging usage and enhancing pet safety without being overly restrictive.
Implementation Method 1
a coil spring positioned inside of the coil spring cavity
Implementation Method 2
when an inertial force is exerted on the pet safety restraint device
Data Source
AI summary
A pet safety restraint device is provided that restrains pets transported in a vehicle. The pet safety device has a retractable leash built into or attached to it. The retractable leash is attachable to a pet harness that can be worn by the pet. The pet safety device provides the pet with a limited range of movement within the vehicle. When an inertial force is exerted on the vehicle and the passengers and the pet in the vehicle, the pet safety restraint device includes a ball housed within the pet safety restraint device that lodges within a gap between teeth of a rotating gear piece in the pet safety restraint device. The retractable leash is locked in place, thus pulling back on the pet and preventing the pet from crashing in the vehicle or being thrown out of the vehicle.