Hermco garage door counterweight systems have been around for many years.
Counter weight door system.
A theatrical counterweight system provides a simple mechanical method of raising and lowering various balanced loads by a system of pulleys and weight carriages.
The counter weight door is designed to suit most commercial and industrial applications.
35 feet and wider doors are shipped with a weight counter balance system.
By introducing an actuator to the system it is just one more point of failure.
Welcome to my first instructable.
By the time the counterweight hits the bottom of the enclosure a k a.
A counterweight is a weight that by exerting an opposite force provides balance and stability of a mechanical system.
Its purpose is to make lifting the load more efficient which saves energy and is less taxing on the lifting machine.
Just my humble opinion and i can understand the desire to make your doors open at the push of a button if for nothing more than it s cool.
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.
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.
It is widely used in service stations workshops ambulance stations fire stations supermarket entrances warehouse loading bays transport depots showrooms factories etc.
As the scenery and equipment loads are varied the amount of counterbalance is adjusted on the weight carriage so that the system can be raised and lowered with a minimum amount of effort.
Or where it is necessary to have a very large single span opening or full display of goods and or facilities.
I m designing the system with a factor of safety of 5 after redundancy is lost and the weight reduction system makes it inherently safe on the counterweight end of things.
An overhead door system employs counterweights which operate through cables connected to a drum which tapers from one end to the other so that the effective force acting on the door in the opening direction is reduced as the proportion of the weight of the door to be supported reduces.
The floor it will weigh about a pound and that will be only the retainer plate for the cement.
Wouldn t it be more reliable and easier to just have a counter weight that makes opening the door by hand real easy.
I d like to apologize for any grammar or english errors becau.
This allows for smooth operation of large heavy doors and an unlimited cycle life.
I hope it will be helpful to anyone who wants to make an automatic door closer with this design using sheaves and internal counterweight.
The system is adjustable readily to accommodate different types of doors having different opening.
