Land vehicles – Wheeled – Articulated vehicle
Patent
1993-05-25
1994-10-04
Hill, Mitchell J.
Land vehicles
Wheeled
Articulated vehicle
280495, 280502, 280504, 280511, B60D 107
Patent
active
053519825
ABSTRACT:
A generally plate-like mounting member is provided for rigid securement to a tow hitch area of a towing vehicle and the mounting member is of non-circular configuration in plan shape and includes upwardly convergent inclined peripheral edges. A generally horizontal plate-like fixture is provided and includes a downwardly opening cavity of a shape complimentary to the shape of the mounting member with the side walls of the cavity also being upwardly convergent so as to match the inclination of the peripheral edges of the mounting member. The upper side of the fixture includes a plurality of tow hitch balls projecting upwardly therefrom in horizontally spaced relation and the plan shape of the mounting member and cavity is such that the fixture may be downwardly secured over the mounting member in a plurality of predetermined rotated positions about a vertical axis relative to the mounting member equal to the number of hitch ball members mounted from the fixture. The depth of the cavity is slightly greater than the height of the fixture such that tightening of the fastener will flex the central area of the fixture downwardly toward the central area of the mounting member to ensure that the matching inclination of the peripheral edges of the mounting member in the walls of the cavity will form a rigid wedge type connection between the mounting member and the fixture.
REFERENCES:
patent: 2911233 (1959-11-01), Riddle
patent: 4022490 (1977-05-01), Rocksvold
patent: 4456279 (1984-06-01), Dirck
patent: 5044652 (1991-09-01), Brisson
patent: 5106114 (1992-04-01), Haupt
patent: 5158316 (1992-10-01), Hutchmacher
Hill Mitchell J.
W.H.P. Innovations Inc.
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