Patent ID: 6182997
Filing Date: 2001-02-06
Classification: B60D

Abstract:
Towing apparatus for connecting a trailer to a towing vehicle comprising:a) a trailer frame having a backwardly-extending rear frame portion for mounting the trailer frame to the trailer and a frontwardly-extending frame portion which is adapted to extend in the direction of the towing vehicle, said frontwardly-extending frame portion comprising:i) a main frame assembly, andii) a secondary-spring-supporting frame member, said main frame assembly and said secondary-spring-supporting member integral with said trailer frame;b) a trailer tongue, having a trailer hitch coupling at one end for attaching the towing apparatus to the towing vehicle, and a pivotal connector at the other end for pivotally mounting the trailer tongue to the trailer frame;c) a wheel assembly having a top end and a bottom end, the top end comprising a wheel spindle, and the bottom end connected to a wheel;d) a bottom link assembly pivotally mounted to the trailer frame, a front end of the bottom link assembly operatively connected to said wheel assembly;e) an adjustable main spring depending from said main frame assembly and operatively connected to said bottom link assembly for biasing the bottom link assembly in a downward direction; andf) an adjustable secondary spring having a top end mounted to said secondary-spring-supporting frame member, and a bottom end of said secondary spring connected to the trailer tongue for urging said trailer tongue in a downward direction.