Car Jack Modification: Safety, Efficiency & Cost Reduction

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SUMMARY

The discussion focuses on modifying a 2-tonne scissor car jack to enhance safety, efficiency, and cost-effectiveness. Key considerations include ensuring the jack fits under the vehicle during a flat tire situation, maintaining stability on a flat base, and optimizing linkage geometry for ease of use. Participants emphasize the importance of reducing weight through design changes, such as altering cross sections or incorporating holes in components. The conversation underscores the necessity of practical calculations and evaluations to achieve these modifications.

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  • Familiarity with stability and load calculations
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Mechanical engineering students, automotive engineers, and DIY enthusiasts interested in enhancing the safety and efficiency of car jacks.

Hsn.sh
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Hello,

I have been set a project where I need to modify a 2 tonne car jack. After evaluation, I ended up choosing a scissor car jack. I would be grateful if anyone would advise on how I can modify the car jack by making it more safe, efficient and decrease the cost.And what sort of calculations i need to take into consideration.

Thank you in advance
 
Last edited:
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You have been given this project as part of your education.
You should not expect engineering consultants to do it for you.
Start here.
Will it fit under the car when the car has a flat?
Is it stable on a flat base or will it fall with the car?

Is the linkage geometry optimum?
When you wind the handle, how hard is it to lift the car at different heights?

The car must drive with it up every hill and accelerate every time, make it lighter.
Can the weight of some components be reduced by changing cross section or adding holes?
 
Baluncore said:
You have been given this project as part of your education.
You should not expect engineering consultants to do it for you.
Start here.
Will it fit under the car when the car has a flat?
Is it stable on a flat base or will it fall with the car?

Is the linkage geometry optimum?
When you wind the handle, how hard is it to lift the car at different heights?

The car must drive with it up every hill and accelerate every time, make it lighter.
Can the weight of some components be reduced by changing cross section or adding holes?

I like this post.
I guess the OP should look at functionality and effectiveness to his list of criteria!
 

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