Fifth wheel coupling with inter-frame mount
An integrated cross-member mount comprises an inter-frame mount seated within opposing longitudinal channels of parallel adjacent truck frame members and comprises a top surface within each lateral portion of which is defined a longitudinally-oriented row of spaced-apart, shaped apertures, and at least two substantially vertical flanges extending downward from the lateral periphery of the top surface that are dimensioned to be conforming to the inner surfaces of truck frame members. Also included is a sliding pedestal having lateral skids seated upon respective portions of rows of spaced-apart apertures and extending into vertical gaps between the top surface of the mount and the truck frame member. Each skid includes a plurality of spaced-apart, shaped skid apertures that can align with a corresponding plurality of shaped apertures within the top surface of the mount. Each skid also includes a pawl pivotally mounted on each skid having a one or more teeth insertable through the skid apertures and the shaped apertures. The pedestal also includes a plurality of pivot bearings mating to a corresponding plurality of bearings of a fifth wheel hitch plate.
1. A fifth wheel hitch mountable between adjacent longitudinal truck frame members, said frame members having opposing open longitudinal channels, said hitch comprising:
an inter-frame mount seated within the opposing longitudinal channels, said mount having:
a top surface within each lateral portion of which is defined a longitudinally-oriented row of spaced-apart, shaped apertures; and
at least two substantially vertical flanges extending downward from the lateral periphery of said top surface, said vertical flanges dimensioned to be conforming to the inner surfaces of said longitudinal channels;
and wherein said inter-frame mount is dimensioned such that there is a vertical gap between said top surface and the inner surfaces of the opposing truck frame members; and
a sliding pedestal comprised of:
lateral skids seated upon respective portions of said rows and extending into each said vertical gap, each said skid including a plurality of spaced-apart, shaped skid apertures that can align with a corresponding plurality of shaped apertures comprising said rows;
a pawl pivotally mounted on each skid having a one or more of teeth insertable through said skid apertures and said shaped apertures of said mount; and
a plurality of pivot bearings mating to a corresponding plurality of bearings of a fifth wheel hitch plate.
2. The apparatus of claim 1 , further comprising one or more transverse joist members support said top surface from underneath, and a plurality of lower vertical mounting flanges extending downward from the lateral peripheries of a plurality of cross braces, each of said cross braces being attached to the lower edges of each of said plurality of transverse joists, said lower vertical flanges dimensioned to be conforming to the inner surfaces of said longitudinal channels.
3. The apparatus of claim 1 , wherein said inter-frame mount comprises a single component with front and rear vertical inter-frame supports extending downward from the front and rear peripheries of said top surface.
4. The apparatus of claim 1 , wherein said top surface mount comprises a single component.