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Trolley Jack Lift Pad

yates_engineering
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yates_engineering Rookie

yates_engineering

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Great idea!

Count me in

I tried to make/source something similar myself but ended up with rubber type products that just don't handle the pressure.

Great to hear StretchGSK ! As you say vulcanized rubber is a poor material for this purpose, I think availability and economy of the hockey puck method was the reason rubber has been the main focus up until now. Under perfectly even compression over the whole area of rubber it is fantastic but any type of localized pressure (eg. the pinch seam) or bending it will not hold up and break, it also has poor chemical resistance which isn't ideal for a garage.

scotty nm35 Grand Master

scotty nm35

Posted
Posted

Well they look the goods, I am yet to try them out on the hoist as most cars have shagged rails already. :P

My jacks are around 95mm pad size, and the hoist is 120mm. If you could make some with a slightly larger base it would work better, but these ones while smaller in the base are plenty large enough in the slot length.

  • 3 months later...
yates_engineering Rookie

yates_engineering

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UPDATE !!

Thanks to many of you guys' valuable input I now have a new and improved trolley jack pad to present. The basic shape and size has been tweaked and it now has patent pending compatibility slots in the bottom which allow it to be used with most small dish trolley jacks as well as large dish.

What are your thoughts on this new model ?

I am currently waiting on a sample from the manufacturer, more updates will follow as I get them.

post-140033-0-74362200-1441962839_thumb.jpg

post-140033-0-16835600-1441962840_thumb.jpg

  • Like 2
scotty nm35 Grand Master

scotty nm35

Posted
Posted

That looks great. :)

Still using the original ones on the hoist pads, I did manage to lose one as they have a habit of getting stuck on the rails, the customer drove off before I realised. They work well, and even though they deform when weight is applied, they spring back perfectly after a minute or two.

I wonder if it's possible to taper the slot slightly to help them fall away when you lower the jack/hoist? Being bolted or glued to the hoist would fix that, but it would make it harder to align on the rail which is sometimes a pain already. Would work better on the jack than the hoist I suspect.

Some cars have plastic side skirts which limit the length of the jacking point to the width of the factory jack, so I can't use the pads on those cars without damaging the plastic. If the slot was shorter it would work better on these cars, but I like the size otherwise. Probably should machine a set down to the width of a scissor jack for a trial to see how much it weakens the design. Keep up the good work Michael. :)

  • Like 1
yates_engineering Rookie

yates_engineering

Posted
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That looks great. :)

Still using the original ones on the hoist pads, I did manage to lose one as they have a habit of getting stuck on the rails, the customer drove off before I realised. They work well, and even though they deform when weight is applied, they spring back perfectly after a minute or two.

I wonder if it's possible to taper the slot slightly to help them fall away when you lower the jack/hoist? Being bolted or glued to the hoist would fix that, but it would make it harder to align on the rail which is sometimes a pain already. Would work better on the jack than the hoist I suspect.

Some cars have plastic side skirts which limit the length of the jacking point to the width of the factory jack, so I can't use the pads on those cars without damaging the plastic. If the slot was shorter it would work better on these cars, but I like the size otherwise. Probably should machine a set down to the width of a scissor jack for a trial to see how much it weakens the design. Keep up the good work Michael. :)

That's great to hear Scotty ! I noticed that as well, especially on cars with rails which are pre-damaged sideways, I will definitely look into it. After this product all is ready to go i'm going to start working on a specific use hoist replacement pad. That's a pity, this new design should assist with that problem. Intriguing idea, I'd be interested in hearing about what happens. I suspect it will compress to much to be of much use depending on how small you go for. Keep me posted and thanks for the encouragement !

Looks nice, be keen to grab one.

Keen to get a hold of some of these

Glad to hear it ! Hopefully they will be ready soon !

  • Like 1
rat32r Enthusiast

rat32r

Posted
Posted

Have you considered making pads to fit over jack stands ?

Once she is jacked up most people will put a couple of stands under the car. If your making them I'd be up for a set of four.

Personally I mainly jack cars from crossmember then put stands under the sills with some home made pads with slots cut out.

People have more stands than jacks so more sales for you.

  • Like 2
  • 1 year later...
yates_engineering Rookie

yates_engineering

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Hi again everyone !

These bad boys now ready to go !

Thanks for all your help and suggestions, as your can see I've stuck with the straight sides to clear plastic trims as well as  reduced the height and slot depth. I've also left out the slots at the bottom for fears that someone might use it correctly and have an accident - Better safe than sorry ! I'm going to do an adaptor in the future instead !

I've changed the business name to Guerrilla Automotive Innovation

I'm not sure if i'm allowed to post websites, prices etc here so shoot me message if your interested !

 

Michael

 

5e82b7_05604a5b8d354f98abd29e38cb96e35e-mv2.jpg

5e82b7_ddb35648cf884747abf323a840cfd8e7-mv2.jpg

  • Like 4
yates_engineering Rookie

yates_engineering

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Posted
11 minutes ago, Leroy Peterson said:

Are you able to confirm dimensions? I'll double check my Jack and place an order

Sounds great ! 79mm diameter; 54mm wide; 34mm high (This does vary slightly due to manufacturing method); 18x10mm slot 

I've actually only got 2 left ! I can't believe how fast they've gone ! I'll set up a pre-order option now encase you don't get there in time !

 

  • Like 2

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