Though many models are operated manually, quite a few may be opened with an electronic door opener or remote. While these come in quite a few variations, the majority tend to be sectional, self-storing, and upward-acting. Likewise, there are also a large selection of materials from which these items can be made; one of the most common being steel. Aluminum, wood, and vinyl are also quite popular. |
Typically, garage ones are constructed with several hinged panels which are guided upward through a system of tracks and wheels. When it comes to how they are balanced, most are supported by either torsion or extension spring lift mechanisms. The torsion being the more complex system, while the extension system consists only of a pair of springs alongside various pulleys, and cables.
Once a model has been selected and installed it is imperative that the unit be maintained and checked every month or so. This process consists of a few simple tasks, which if properly followed will add years to the life of the door itself. To begin, one must make sure they are able to raise and lower the door without resistance, noting that it should roll smoothly along the tracks.
If problems should arise it may mean that the unit has become imbalanced and should be adjusted. Another easy tip involves the lubrication of any and all moving parts associated with the unit. Door tracks need not be lubricated due to the enhanced possibility of attracting excessive dirt and grime, which can result in a sticky one.
As far as safety is concerned, there are a few notable aspects to be aware of. Where extension springs are involved it is most common that the unit be installed with a restraint cable running through the center of the springs themselves. This tactic is generally used due to the fact that the springs tend to weaken over time from the stresses of everyday use.
The restraint cable exists solely as a backup in case of spring failure, preventing possible bodily injury or property damage. Garages equipped with torsion springs do not require restraint cables. Instead, a small shaft inside the spring acts as the saving grace in cases of spring failure. In addition, many electric models now come equipped with sensors placed near the bottom base of the structures frame. The sensors ensure the safety of individuals and property alike, quickly stopping the garage from closing in the event that the sensor is passed though.
As technology and design continue to evolve, one can only imagine what the future holds for these simple machines.
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