How can i set up multiple pulleys to raise & lower a set of doors that are hinged at the top & bottom? - swing set designs blue prints
I have a warehouse, he built a gate / track out to my lawn mower. the lower half of the door to the ramp shape, hinges remain the top half of the door away from the road. Both doors are the same wieght, and I would like the design of pulleys or similar, so that the doors open / counterweight to the other. Opening less weight if the doors need to raise the upper half, and in the end, I want to be able to provide the door down with the help of the above-Lift Lift the gravity takes the upper door. I hope it is not too confusing, I have tried to solve a certain time. If anyone knows of graphic design / web, it would be great. any help would be appreciated.
Thursday, February 4, 2010
Swing Set Designs Blue Prints How Can I Set Up Multiple Pulleys To Raise & Lower A Set Of Doors That Are Hinged At The Top & Bottom?
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3 comments:
I can think in two ways. The first is a weight with counterbalence doors separately compensated. To stay attached for the gate of the drawbridge down with the weight (mass gate 2x) to the pulley door.Same lift. according to limitations of space several blocks may be necessary to keep the weight where they can keep moove.
You can try the garage door springs. Look at the pulley back configuration for single-aged garage door pulley / spring settings instead of the torsion spring.
Second way is hard to describe. Create from the top hinge to a junction at 90 degrees away from the door itself the length of the door. Imagine a large square carpenter speed doorwith bolted on top of 90 degrees. Angle (rotation) in the upper hinge. Now, bar two doors from the inside with a connection to a rigid, angle, point furtherest square of the velocity in the upper door to the upper edge of the lower door locked. When the door is pulled from the tip of the rod, pushes the door downward with the same force and displacement.
Try again in a home improvement ...
A simple regulatory role would be a nightmare of trial and error to configure. Here's a simple rule of physics is to remember.
If the force is applied to believe that there is an infinitely long line. If this line is through the hinge, the door does not rotate.
What this means for you is that you use to open the doors to one another or stand in the area, can not quite keep. Because the gates rotate 90 degrees, at a place that leads the line of force through the hinge (a simplified explanation, but good enough) for this exercise.
In other words, streams and Tilt up garage door.
If doos slipped up and down on the tracks, it could make effective use of roles, because of course not change the attacking forces.
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