Design Criteria for Panic Bars and Auger Miner Safety. Panic Bar Study. Volume 2. Cutters/Face Drills.

摘要

The panic bars (and associated linkages and electrical circuitry) that are defined in this document are a machine operator-actuated control for the emergency deenergization of the tram motors on self-propelled,electric and diesel face equipment,including haulage equipment such as shuttle cars. There are nine basic types of panic bars (and several variations) that are recommended in this document,but all of the panic bars are characteristically of the 'fire door'type that is frequently encountered on outside exit doors of many public and some commercial buildings. It is also the intent of the following panic bar designs that,when emergency brakes are added to the face equipment machinery for which they are required,that they be designed and hooked up so that actuation of the panic bar will result in automatic application of the emergency brakes (immediately following the deenergization of the tram motors).