Heavy self-propelled work performing vehicle

• US 3,283,841 A
• Filed: 11/27/1964
• Issued: 11/08/1966
• Est. Priority Date: 11/27/1964
• Status: Expired due to Term

• Current Assignee: Alfred B. Mayfield, Charles J. Davis
• Original Assignee: Alfred B. Mayfield, Charles J. Davis
• Inventors: Davis, Charles J., Mayfield, Alfred B.
• Application Number:
  US04/414,258
• Time in Patent Office: 711 Days
• US Class Current: 180/14.1
• CPC Class Codes: B60G 17/0275 the mechanical spring being a leaf spring
• CPC Class Codes: B60S 9/20 with fluid-pressure lift

Claims

1. A SELF-PROPELLED VEHICLE COMPRISING:

A RIGID ELONGATED FRAME WHICH SUPPORTS A POWER UNIT;

AT LEAST ONE TRANSPORTING WHEEL MOUNTED NEAR THE FRONT END OF SAID FRAME;

A TRANSVERSE REAR AXLE HOUSING HAVING AXLE ENDS PROJECTING FROM THE OPPOSITE ENDS THEREOF;

A PAIR OF REAR TRANSPORT WHEELS, ONE MOUNTED ON EACH AXLE END;

LATERALLY SPACED CRANK ARMS DISPOSED RADIALLY AND ORIENTED IDENTICALLY WITH RESPECT TO SAID REAR AXLE HOUSING, EACH CRANK ARM HAVING AN END RIGIDLY SECURED TO SAID AXLE HOUSING;

MEANS PIVOTALLY SECURING THE RESPECTIVE OPPOSITE ENDS OF SAID CRANK ARMS TO SAID FRAME ON A COMMON TRANSVERSE AXIS TO AFFORD FORE AND AFT SWINGING MOVEMENT OF THE AXLE HOUSING AND ITS WHEELS ABOUT THE CRANK ARM AXIS, THE TRANSVERSE CRANK ARM AXIS LYING IN A PLANE IMMEDIATELY ADJACENT VERTICAL TRANSVERSE PLANE PASSING THROUGH THE VEHICLE CENTER OF GRAVITY;