WHEEL ASSEMBLY FOR VEHICLES PARTICULARLY INTENDED FOR COMBINED ROAD AND CROSS-COUNTRY TRANSPORTS

• US 3,591,195 A
• Filed: 04/18/1969
• Issued: 07/06/1971
• Est. Priority Date: 04/22/1968
• Status: Expired due to Term

• Current Assignee: Ilon Bengt Erland
• Original Assignee: Ilon Bengt Erland
• Inventors: ILON BENGT ERLAND
• Application Number:
  US04/817,434
• Time in Patent Office: 809 Days
• US Class Current: 280/81.1
• CPC Class Codes: B62D 61/10 with more than four wheels tractors of the low ground pressure type B62D49/002
• CPC Class Codes: F23D 14/42 for cutting F23D14/44 takes precedence

Abstract

A vehicle wheel assembly for use in pairs on combined road and cross-country transport vehicles includes two links each articulated with a common frame and a balancing arm pivotally carried by each of the links. The balancing arms are hingedly connected with one another and support three wheels having mutually parallel axles, the central wheel of which is mounted coaxially with the hinged connection and between the fulcra common to the balancing arms and the links.

Claims

1. Wheel assembly for cross-country transport vehicles having a frame comprising two links respectively articulated with said frame at points spaced by a predetermined distance, a balancing arm pivotally carried by each of said links thereby creating a pair of fulcrums common to said balancing arm and a link, said arms being hingedly connected with each other and supporting three wheels with mutually parallel axles, the central one of said wheels being mounted between said pair of fulcrums, said fulcrums being located between the axle center for the central wheel and the axle centers of the outer wheels and being spaced apart a distance which is smaller than said predetermined distance between the points of articulation of said links with said frame.

2. Wheel assembly according to claim 1 wherein each said fulcrum is located at a greater distance from the center of the central wheel than from the center of the nearest outer wheel.

3. Wheel assembly according to claim 1 wherein the axle of the central wheel is coaxial with the hinged connection of tHe balancing arms.

4. Wheel assembly according to claim 3 wherein each said fulcrum is located at a greater distance from the center of the central wheel than from the center of the nearest outer wheel.

5. Wheel assembly according to claim 1 wherein the wheels and the links in the normal rest position of the wheel assembly are symmetric with respect to the hinged connection of the balancing arms.

6. Vehicle wheel assembly according to claim 5 wherein the axle of the central wheel is coaxial with the hinged connection of the balancing arms.

7. Wheel assembly according to claim 5 wherein each said fulcrum is located at a greater distance from the center of the central wheel than from the center of the nearest outer wheel.

8. A cross-country vehicle comprising a frame, independent link pairs pivotally mounted in parallel maintained is on opposing sides of said frame, each said independent link pair including two links respectively articulated with said frame at points spaced by a predetermined distance, a balancing arm pivotally carried by each of said links thereby creating a pair of fulcrums common to said balancing arm and a link, said arms carried by each said link pair being hingedly connected with each other and supporting three wheels with mutually parallel axles, the central one of said wheels being mounted between said pair of fulcrums, said fulcrums being located between the axle center for the central wheel and the axle centers of the outer wheels and being spaced apart a distance which is smaller than said predetermined distance between the points of articulation of said links with said frame.