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1. (WO2002032744) COUPLING SYSTEM AND METHOD OF USE THEREOF

Pub. No.:    WO/2002/032744    International Application No.:    PCT/GB2001/004626
Publication Date: Apr 25, 2002 International Filing Date: Oct 17, 2001
IPC: B60D 1/62
B60D 1/64
B62D 53/12
Applicants: TRAILTEK LIMITED
MORGAN, David, William
ROBINSON, Nigel, Edward
Inventors: MORGAN, David, William
ROBINSON, Nigel, Edward
Title: COUPLING SYSTEM AND METHOD OF USE THEREOF
Abstract:
A coupling system for a vehicle such as an articulated lorry and method of use thereof is provided. The articulated lorry includes at least a tractor unit and a trailer unit. The tractor unit has first coupling means provided on a fifth wheel which engages with second coupling means typically in the form of a kingpin on the trailer unit. The fifth wheel coupling means and the kingpin have one or more pneumatic and/or electrical supply lines provided therein which engage upon mechanical engagement of the fifth wheel coupling means and kingpin, thereby allowing pneumatic and/or electrical supply between said tractor unit and said trailer unit and/or vice versa. One of the fifth wheel coupling means or kingpin is provided with one or more annular protrusions on a coupling surface and the other is provided with complementary annular channels on a coupling surface. The annular protrusions engage with the annular channels upon mechanical engagement of the tractor unit and trailer unit to affect the connection of at least one of said supply lines simultaneously to mechanical coupling of the tractor and trailer units.