TANDEM DRIVE AXLE ASSEMBLY WITH STRAIGHT LINE THROUGH LINE DRIVE CONNECTION 3 Sheets-Sheet '3 Filed Jan. 10. 1955 INVENTOR- Bans/21.) Ml Azssz:
BY 21% q fl w ATTORNEYS United States Patent-O TANDEM DRIVE AXLE ASSEMBLY WITH STRAIGHT LINE THROUGHLINE DRIVE CONNECTION Beverly W. Keese, Neenah, Wis., assignor to Rockwell- Standard Corporation, a corporation of Pennsylvania Application January 10, 1955, Serial No. 480,765 5 Claims; c1. 180-22 desirable to divide engine torque equally between the tandem drive axles and between the driving wheels on the axles. But, when traveling on slippery snow or ice covered road or for olf-the-highway travel over soft ground, or through sand or mud, or during any other condition of poor traction, it is desirable to provide positive drive to both of the tandem drive axles to prevent dissipation of all the driving force to the tandem drive axles through a spinning wheel of one axle.
Most front-wheel drive axle assembly designs use both an inner and an outer splined area. The inner spline meshes with a spline in the differential, while the outer spline fits into the wheel hub. This design allows a to break while still retaining the wheel hub. If the hub were machined into the axle assembly in the same manner as a , the front wheel would fall off of the vehicle in the event of a broken axle.