Towing device

Land vehicles – Wheeled – Articulated vehicle

Reexamination Certificate

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Reexamination Certificate

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06908095

ABSTRACT:
A towing device has a ball neck equipped with a ball head that can be moved by a spindle adjusting element back and forth from an operative position into an inoperative position. The ball neck is arranged in a rotary block which is swivellably held in a carrier part. For supporting the ball neck in all possible loading directions, supporting surfaces, a torsion stop as well as a detent pawl are provided so that a movement of the coupling neck is avoided when forces act upon it, and a precise position is ensured in the operative position.

REFERENCES:
patent: 4109930 (1978-08-01), Pilhall
patent: 4482167 (1984-11-01), Haugrud
patent: 5853186 (1998-12-01), Gentner et al.
patent: 5964475 (1999-10-01), Gentner et al.
patent: 6409201 (2002-06-01), Riehle
patent: 6547271 (2003-04-01), Kleb et al.
patent: 2003/0006581 (2003-01-01), Moss et al.
patent: 43 01 055 (1994-07-01), None
patent: 19612959 (1997-10-01), None
patent: 198 58 978 (2000-06-01), None
patent: 10004523 (2001-08-01), None
patent: 10023640 (2001-11-01), None
patent: 100 23 641 (2001-11-01), None
patent: 1 153 770 (2001-11-01), None
patent: WO 91/15374 (1991-10-01), None
patent: 01/32451 (2001-05-01), None

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