Vehicle with flexible frame

• US 3,235,020 A
• Filed: 09/19/1962
• Issued: 02/15/1966
• Est. Priority Date: 09/19/1962
• Status: Expired due to Term

• Current Assignee: Mieczyslaw G. Bekker
• Original Assignee: Mieczyslaw G. Bekker
• Inventors: Bekker, Mieczyslaw G.
• Application Number:
  US04/224,754
• Time in Patent Office: 1,245 Days
• US Class Current: 180/12
• CPC Class Codes: B60F 3/0007 Arrangement of propulsion or steering means on amphibious vehicles marine propulsion or steering B63H
• CPC Class Codes: B62D 53/005 Combinations with at least three axles and comprising two or more articulated parts articulated buses B62D47/025
• CPC Class Codes: B62D 53/02 comprising a uniaxle tractor unit and a uniaxle trailer unit see B60B11/00 - B60B11/08
• CPC Class Codes: B62D 53/028 Having only coupling joints other than directional articulated frames B62D21/186 and B62D55/10
• CPC Class Codes: B62D 61/10 with more than four wheels tractors of the low ground pressure type B62D49/002

Claims

4. A VEHICLE ADAPTED FOR ROUGH TERRAIN OPERATION COMPRISING A PLURALITY OF UNITS EACH HAVING A PAIR OF WHEELS, THE WEIGHT OF EACH UNIT BEING INDEPENDENTLY BORNE BY THE RESPECTIVELY WHEELS THEREOF, AND SPRING FRAME MEANS HAVING AN EFFECTIVE CROSS SECTION THIN IN VERTICAL DIRECTION AND THICK IN HORIZONTAL DIRECTION AND CONNECTING ONE UNIT TO ANOTHER, THE SPRING FRAME MEANS THUS BEING HIGHLY FLEXIBLE IN PITCH AND ROLL DIRECTION AND INFLEXIBLE IN LATERAL DIRECTION AND HAVING A FORCE TRANSFERRING RIGID CONNECTION AT ONE END TO ONE UNIT AND A GENERALLY VERTICAL PIVOT CONNECTION AT THE OTHER END TO THE OTHER UNIT.