Belt guard

A belt cover for an oil pump jack,

• the pump jack comprising:
• a pump frame;
• a motor mounted on the frame and including a drive shaft with a drive pulley thereon,
• a main jack assembly;
• a driven shaft mounted on the main jack assembly for communicating power to the main jack assembly from the motor, the driven shaft including a driven pulley thereon for driving a receiving drive from the drive shaft:
• and a drive belt wrapped around the drive pulley and the driven pulley to define an upper belt run and a lower belt run, the drive pulley, driven pulley and the belt lying substantially in a common vertical plane at right angles to the horizontal drive shaft and the driven shaft;
• the belt cover comprising:
• a main cover portion having:
• a main rear wall arranged to lie parallel to and adjacent to the plane, the main wall extending to a peripheral edge which has a top portion above the upper run, a bottom portion below the lower run, a first end portion beyond the drive pulley and a second end portion beyond and driven pulley;
• and an edge wall at right angles to and extending forwardly from the main wall and arranged around at least a part of the peripheral edge including the top portion and the end portions, the edge wall having a width from the main wall such that it extends to a plane forwardly of the belt opposite the main rear wall;
• a front cover portion having:
• a main front wall parallel to and substantially coextensive with the main rear wall;
• and a peripheral lip at right angles to and extending rearwardly from the front wall and arranged around at least a part of the peripheral edge including the top portion and the end portions so as to engage over the edge wall in at least partly overlapping arrangement;
• and a plurality of fasteners locating the front cover portion on the main cover portion;
• the front cover portion and the main cover portion being formed from a molded plastics material.