Patent ID: 7257904

Claim:
A tool for inspecting a trailer kingpin and adjusting a fifth wheel hitch, said kingpin comprising a lower flange and a shank, said hitch comprising a bolt having a hexagonal cap for adjusting the amount of play when a kingpin is engaged therein, said tool comprising a plate, said plate having: a. first and second mutually substantially perpendicular sides defining a plane, said first side having upper and lower generally rectangular tabs extending therefrom and separated by a space therebetween, said space being dimensioned to snugly receive a kingpin lower flange, said upper tab being dimensioned to be snugly received along said shank; b. a side opposing said first side, said opposing side having at least one recess shaped and dimensioned to receive said hexagonal cap for transferring the application of torque thereto; c. a shaped aperture therein for inserting therethrough a kingpin, said shaped aperture having a wide portion and a narrow portion, said wide and narrow portions being substantially rectangular; and d. an orthogonal thickness with respect to said plane, said thickness being substantially constant for most of the tool with respect to the tool length, and relatively greater in the area of said at least one shaped recess.