Patent · US Expired

Towing device

US6908095B2 · kind B2 · utility

5Cited by

6References

13Claims

0Family size

Assignee

Dr. Ing. h.c. F. Porsche AG · DE

Inventors

Peter Reutlinger · Knittlingen, DE
Eberhard Palmer · Leinfelden, DE
Andreas Piede · Ellingen, DE

Key dates

Filing date	Jul 11, 2003
Grant date	Jun 21, 2005
Priority date	—
Expiry date	Aug 25, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60D1/485
WIPO fieldTransport
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.