Counter Weight Door System
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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.
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. Counterweights are often used in traction lifts elevators cranes and funfair rides. The floor it will weigh about a pound and that will be only the retainer plate for the cement. Hermco garage door counterweight systems have been around for many years.
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. 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. I d like to apologize for any grammar or english errors becau. Or where it is necessary to have a very large single span opening or full display of goods and or facilities.
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. 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. By the time the counterweight hits the bottom of the enclosure a k a.
By introducing an actuator to the system it is just one more point of failure. 35 feet and wider doors are shipped with a weight counter balance system. Its purpose is to make lifting the load more efficient which saves energy and is less taxing on the lifting machine. A counterweight is a weight that by exerting an opposite force provides balance and stability of a mechanical system.
Wouldn t it be more reliable and easier to just have a counter weight that makes opening the door by hand real easy. 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. 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.
Welcome to my first instructable. In these applications the expected load multiplied by the distance.
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