DRIVING DEVICE FOR WHEEL OF AIRPLANE

• US 20130256452A1
• Filed: 02/04/2011
• Published: 10/03/2013
• Est. Priority Date: 02/04/2011
• Status: Active Grant

• Current Assignee: Akihiko Tawara
• Original Assignee: Akihiko Tawara
• Inventors: Ushiyama, Izumi, Tawara, Akihiko
• Granted Patent: US 9,174,726 B2
• Time in Patent Office: Days
• US Class Current: 244/50
• CPC Class Codes: B64C 25/40 the elements being rotated before touch-down
• CPC Class Codes: B64C 25/405 Powered wheels, e.g. for taxing

Abstract

The device of this invention comprises a revolution drive disc 20 which has a rubber ringed plate 21 and plural fins 22. The fins 22 are obliquely attached on the outside surface of the ringed plate 21 so that torque by the fin 22 at the lower side of the tire in the direction same as the revolution of the wheel after landing is larger than the torque by the fin 22 at the upper side of the tire in the direction reverse to the revolution of the wheel after landing. The revolution drive disc is adhered on the side surface of the tire 17 through the rubber group adhesive. The wheel of the airplane, drawn out from the body, rotates in the direction same as the revolution of the wheel after landing due to the atmospheric air flow by the flight before landing. Thus the change of the number of the revolution at the moment of touch down on landing is reduced or gone, resulting in the reduction of the wear and damage of the tire and the reduction or prevention of the adhere of the remnant or residue of the tire on the runway.

Claims

1. A driving device for wheel of airplane driving the wheel in such a direction same as the revolution of the wheel after landing by utilizing the relative atmospheric air flow the airplane receives before landing, comprising;

a ringed flat plate constituting the attaching means to attach on the side surface of the tire,

fins arranged at the predetermined pitch in the peripheral direction on the ringed plate, the fins being obviously arranged on the ringed plate so that the torque by the fin at the lower side of the tire in the direction same as the revolution of the wheel after landing is larger than the torque by the fin at the upper side of the tire reverse to the revolution of the wheel after landing,

wherein, the ringed plate is attached to the side surface of the tire.

2. A driving device for wheel of airplane according to claim 1, wherein, the fins at the upper side of the tire receives force to close the fin by the atmospheric air flow due to the flight before landing, and the fins at the lower side of the tire receives to open the fin by the atmospheric air flow due to the flight before landing.

3. A driving device for wheel of airplane according to claim 1, wherein, the fin is made of the different piece, and the inner surface of the base portion of the fin is adhered to the ringed plate, the top portion of the fin being separated from the ringed plate so that the fin deforms to enlarge the gap between the fin and the ringed plate.

4. A driving device for wheel of airplane according to claim 2, wherein the fin is formed integrally on the ringed plate, the thickness of the fin at the base portion is larger than that at the top portion, and the gap between the fin and the ringed plate is gradually increased so that the fin deforms when receives the relative atmospheric air flow so that the top of the fin is separated the ringed plate.

5. A driving device for wheel of airplane according to claim 2, wherein the inner surface of the base portion of the fin is adhered to or the fin is integrally formed on the ringed plate, and gap is formed at the inner surface of the top side of the fin and the ringed plate, the intermediate portion of the fin in the width direction projecting outwardly to form a curve in the width direction of the fin.

6. A driving device for wheel of airplane according to claim 1, wherein the revolution drive disc is made of rubber group materials and is attached to the side surface of the tire through the rubber group adhesive.

7. A driving device for wheel of airplane according to claim 2, wherein the revolution drive disc deforms in accordance with the deformation of the tire.

8. A driving device for wheel of airplane wherein a circular opening is formed at the center of the ringed plate for the equipment or the removal of the wheel.

9. A driving device for wheel of airplane driving the wheel in such a direction same as the revolution of the wheel after landing by utilizing the relative atmospheric air flow the airplane receives before landing comprising;

a pair of ringed flat plates which are arranged parallel in the axial direction at the predetermined space and constitute the selective attaching means to attach to the side surface of the tire,

fins arranged between the pair of ringed plates peripherally in the predetermined pitch, the fins being obliquely disposed so that the rotational and normal torque normal to the direction of the revolution after landing by the lower portion of the tire is lager than the rotational and reverse torque reverse to the direction of the revolution after landing by the bottom portion of the tire,

the revolution drive disc is comprised of the pair of ringed plates and the fins, and one of the pair of the ringed plates is attached to the side surface of the tire by the adhesive.

10. A driving device for wheel of airplane according to claim 9, wherein the fins of the revolution drive disc at the upper side of the tire induce the air flow to the outside in the radial direction, and the fins at the lower side of the tire induce the air flow to the center of the wheel in the radial direction.

11. A driving device for wheel of airplane according to claim 9, wherein the revolution drive disc is made of rubber group materials and is attached to the side surface of the tire through the rubber group adhesive.

12. A driving device for wheel of airplane according to claim 9, wherein the revolution drive disc is symmetrical in the axial direction relative to the intermediate portion of the pair of ringed plate.

13. A driving device for wheel of airplane according to claim 9, wherein one of the pair of ringed plates is selectively adhered to the reverse side surfaces of the tire.

14. A driving device for wheel of airplane according to claim 9, wherein a pair of ringed plates are adhered to the reverse side surfaces of the tire of the double wheels.