Vehicle in-service/out-of-service rotatable tailgate mechanism

A body for a haulage vehicle having a tailgate assembly from which the body has a first load capacity when the tailgate assembly is in an in, service position and a second, lesser load capacity when the tailgate assembly is in an out-of-service position, the body made by the following process:

• determining a desired distribution of weight on a chassis of the haulage vehicle,
• establishing a line for a floor and a line for a front wall of the body,
• adjusting a first set of parameters of the body such that normal loading of the body results in the desired distribution of weight on the chassis for a load of high-density material carried by the body with the tailgate assembly in the out-of-service position, where the parameters include the following:
• (a) the slope of the floor, and (b) the slope of the front wall;
• adjusting a second set of parameters of the body such that normal loading of the body results in the desired distribution of weight on the chassis for a load of low-density material carried by the body with the tailgate assembly in the in-service position, where the parameters include the following:
• (a) a height of lateral sidewalls of the body, (b) a location of a rear section of the tailgate assembly when the assembly is in its in-service positions and, (c) a position of the front wall above where the high-density material contacts the front wall;
• and
• producing the body in accordance with the values of the first and second sets of parameters.

A body for a haulage vehicle having a tailgate assembly from which the body has a first load capacity when the tailgate assembly is in an in-service position and a second, lesser load capacity when the tailgate assembly is in an out-of-service position, the body made by the following process:

• determining a desired distribution of weight on a chassis of the haulage vehicle;
• establishing a line for a floor and a line for a front wall of the body;
• adjusting a first set of parameters of the body such that normal loading of the body results in the desired distribution of weight on the chassis for a load of high-density material carried by the body with the tailgate assembly in the out-of-service position, where the parameters include the following:
• (a) a position of the floor, (b) a position of sidewalls and .COPYRGT. a position of the front wall;
• adjusting a second set of parameters of the body such that normal loading of the body results in the desired distribution of weight on the chassis for a load of low-density material carried by the body with the tailgate assembly in the in-service position where the parameters include the following:
• (a) a position of sidewalls of the body above where the high-density material contacts the body, (b) a position of the tailgate assembly when the assembly is in its in-service position, and (c) a position of the front wall above where the high-density material contacts the body, and
• producing the body in accordance with the values of the first and second sets of parameters.