Fred M Dittmann

US Patent:

44496028, May 22, 1984

Filed:

Jul 9, 1982

Appl. No.:

6/396639

Inventors:

Fred M. Dittmann - Lake Zurich IL

Assignee:

Municipal Industries, Inc. - Chicago IL

International Classification:

B62K 506

US Classification:

180215

Abstract:

The invention provides an improved, independent swing-arm type suspension for three-wheel vehicles and includes a special yoke frame in which the rear axle is rigidly mounted, and cross rails for mounting a storage box thereon. The box is mounted directly onto the frame cross rails. The entire rear assembly is mounted by swing-arm pivot and triple spring/shocks between the main frame and the rear swing-arm frame assembly. This assembly moves the point of travel to below the rider's seat, thus giving improved ride and handling characteristics. The rear axle employs a fully engineered off-center differential connected to an in-line drive shaft for better performance and easier maintenance.