Trailer hitch jack cover and securing device

A cover for a trailer hitch jack having an adjustment mechanism with a crank handle, the cover comprising:

• a housing with a closed upper end and a lower open end and configured to be securely disposed over the trailer hitch jack so that the housing surrounds an operative upper portion of the trailer hitch jack, including the adjustment mechanism crank handle, entirely except at the lower open end of the housing;
• a cushion member fixed to the housing;
• and
• a fastener which secures the housing to the trailer hitch jack,
• wherein the housing is formed of metal and includes a tubular housing side wall which defines an open space therein which is configured to surround the operative upper portion of the trailer hitch jack, and the closed upper end of the housing includes a housing upper member which is fixed to and closes an upper end of the tubular housing side wall,
• the cushion member covers only the housing upper member,
• the fastener includes a pin which is configured to be extended through and removed from opposed openings defined in portions of the tubular housing side wall which define the open space, for selectively fastening and unfastening the housing to the trailer hitch jack and a member which attaches to at least one end of the pin, and which prevents the at least one end of the pin from passing through the opposed openings defined in the tubular housing side wall when the member is attached to the at least one end of the pin, to thereby secure the pin to the tubular housing side wall, and
• the opposed openings are defined in opposing upper portions of the tubular housing side wall such that when the housing is disposed over the trailer hitch jack and the pin is extended through the opposed openings the pin will be disposed below and adjacent to the adjustment mechanism crank handle of the trailer hitch jack, and when so disposed, if the housing is moved upward relative to the trailer hitch jack the pin will engage against the adjustment mechanism crank handle to prevent the housing from being displaced off of the trailer hitch jack.