Front suspension and steering system for cycles and motorcycles without tilting of the front wheels

• US 7,641,207 B2
• Filed: 02/11/2008
• Issued: 01/05/2010
• Est. Priority Date: 02/11/2008
• Status: Expired due to Fees

• Current Assignee: Wang L.I. Yang
• Original Assignee: Wang L.I. Yang
• Inventors: Yang, Wang Li
• Primary Examiner(s): To; Toan C
• Application Number:
  US12/068,690
• Publication Number:
  US 20090200766A1
• Time in Patent Office: 694 Days
• Field of Search: 180/210, 180/211, 180/215, 280/124.103, 280/124.107, 280/124.111, 280/267, 280/271
• US Class Current: 280/124.103
• CPC Class Codes: B62K 5/027 Motorcycles with three wheels specially adapted for disabled riders B62K5/023
• CPC Class Codes: B62K 5/05 characterised by a single rear wheel
• CPC Class Codes: B62K 5/06 Frames for tricycles
• CPC Class Codes: B62K 5/08 with steering devices acting on two or more wheels
• CPC Class Codes: B62K 5/10 with means for inwardly inclining the vehicle body on bends

Abstract

The present invention offers a front suspension and steering system for cycles and motorcycles. A mainframe with two front wheels and one rear wheel, the front wheels have flat surface tires, a 2-axial hub, having a wheel axle to support the two front wheels and a tilting axis below the wheel axle, a steering arm, having a tilting axle, the tilting axle can rotate in the tilting axis when the steering arm is tilting, the steering arm is connected to the mainframe by two wish bones and can rotate in the steeling axis. During turning, the body and the rear wheel are tilting to the side of turning to keep the center of gravity on the side of turning to balance the centrifugal force, but the front wheels and the 2-axial hub do not tilt, such that it is more stable and safe during turning.

Claims

1. A front suspension and steering system for cycles and motorcycles, with two flat surface tires for the front wheels, the steering device of the front wheel including a 2-axial hub, a tilting axle, a steeling axle and a steering arm such that the front wheel will not tilt during turning, comprising:

a mainframe with two front wheels and one rear wheel, said front wheels have flat surface tires;

a 2-axial hub, having a wheel axle to support the two front wheels and a tilting axis below said wheel axle, said tilting axis is longitudinal and perpendicular to said wheel axle;

a steering arm, having a tilting axle, said tilting axle can rotate in said tilting axis when said steeling arm is tilting, said steering arm is connected to said mainframe by two wish bones;

a steeling axle, said steeling axle can rotate in a steeling axis when said steeling arm is turning.

2. A front suspension and steering system as recited in claim 1, wherein said steering arm is in L shape, said tilting axle is on the lower end of said steering arm.

3. A front suspension and steering system as recited in claim 2, wherein said steeling axle is on the upper end of said steeling arm, and can rotate in said steeling axis on said mainframe when turning.

4. A front suspension and steering system as recited in claim 1, wherein said steering arm is in rotated 180°

L shape, said tilting axle is on the lower end of said steering arm.

5. A front suspension and steering system as recited in claim 4, wherein said steeling axle is between said wish bones near the side of said mainframe, said steeling axle can rotate in said steeling axis on said mainframe when turning.

6. A front suspension and steering system as recited in claim 1, wherein said steering arm is in reversed Y shape, said tilting axle is between the lower ends of said steering arm.

7. A front suspension and steering system as recited in claim 6, wherein said steeling axle is on the upper end of said steeling arm, and can rotate in said steeling axis on said mainframe when turning.