Gate operator
From Wikipedia, the free encyclopedia
A gate operator is a mechanical device used to open and close a gate, such as one at the end of a driveway.
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[edit] Operator Types
[edit] Mechanical
Drawing power from the mains to open a driveway gate. Generally there are four types of electromechanical gate operator: Worm driven (or screw type) swing gates, articulated arm swing gate operators and underground swing gate operators and motors for sliding gates.[1] Electric and automatic gate openers are designed for both sliding and swinging gates and fences. They can be programmed to open with a manual device or a wireless transmitter. Automatic gate operators can also be fitted with solar panels to ensure function during blackouts or loss of electricity.
[edit] Hydraulic
These are used to automatically open an automatic driveway gate. As the name implies they use hydraulic fluids to operate their motion. Typically they have less moving parts.[clarification needed]
[edit] Gate Types
[edit] Swing
Swing gates can use three types of operators. A swing arm operator, which is a box, that sits off to the side and has an arm extending to the gate. A ram arm is located on the gate and post and uses either a hydraulic piston or a jackscrew-operated piston. Underground operators are located by the hinge and operate the gate from below grade.[2]
[edit] Slide
Slide gate operators are commonly installed at the end of the gate in the closed position but can also be installed by the end of the gate in the open position. A chain is attached across the gate near the bottom and passes through the operator, which shuttles it back and forth. In the end of the gate/open position you do not see the chain or any operating equipment near the gate. Sliding gates are more hazardous than swing gates and should be equipped with appropriate safety devices. [2]
[edit] Barrier
An automatic gate consisting of a breakaway gate arm, motor assembly and housing installed at the departure end of a toll island. A barrier gate is used to reduce violations and speed through a toll lane. Barrier gates installed in both attended and unattended lanes commonly includes a remote control capability to raise the gate for patrons with insufficient funds. [3]
[edit] Overhead
[edit] Tigers Teeth
[edit] Safety
It is vital to consider the safety of an electric gate. An improperly installed automatic gate without proper safety devices may result in serious injury or death. [4]
