Shoulder pulley system over the door metal bracket therapists choice for physical therapy.
Door counter weight pulley system.
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I selected weight by using plastic bag filled with rocks until i found the right weight.
The door has 4 rollers 1 in each corner that ride up along a j track.
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Pulleys are mounted at the top of each track.
It was quite practical.
95 19 95 count get it as soon as wed sep 16.
Aircraft cable runs from both bottom roller fixtures through the pulleys and then to a weight canister.
May need to oil hinges so gate operates smoothly.
Well done this reminds me on a system i had done to open louvers on top of the front door using a multi pulley system i did not use any counterweight though but what was cool about it was that i managed to make a system that opened and closed the two louvers simultaneously with the rope hanging only from one side.
The j tracks are attached to the wall.
Thanks for watching my video.
A theatrical counterweight system provides a simple mechanical method of raising and lowering various balanced loads by a system of pulleys and weight carriages.
A counterweight garage door doesn t need a tracking system which reduces its maintenance and it operates on a simple remote control mechanism that sits to one side of the opening.
Tie weight to length of clothes line loop over top pulley 2 thru the center pulley 1 and tie it to hook at bottom of post.
They are ideal when security is essential where noise or temperature control might be an issue where you need a minimal internal or external projection and.
The two piece door would have 8 rollers 4 for each section.
4 6 out of 5 stars 483.
Our concept was conceived to eliminate the need to replace broken or fatigued springs and eliminate the ongoing need for service calls which is very costly over the life span of high cycle garage doors.
Riiai cable pulley tricep pulley system for arm strength training 2 0meter diy pulley cable attachment cable pulley system gym pulley home gym pulley equipment workout 2 0m 4 8 out of 5 stars 8 40 69 40.