JPH061196U - Airplane wheel - Google Patents

Abstract

(57) [Summary] [Purpose] The tires of the wheels are equipped with wind catching members for catching the wind during flight and allowing the wheels to freely rotate in the same direction as the traveling direction of the aircraft. Since the wheels land on the advancing side while rotating freely, it is possible to smoothly shift to rolling frictional motion with the runway surface, which can significantly reduce the degree of tire wear compared to when the wheels land in a stationary state. To aim. [Structure] A tire mounted on a wheel rim and at least three or more of the tires on the outer surface of the tire in a substantially radial symmetry in order to capture wind during flight and rotate the wheel in the same direction as the traveling direction of the aircraft. And a wind catching member attached to the tire, and when the airplane is landing, the wind catching member attached to the tire catches the wind and allows it to rotate freely while coming into contact with the runway surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to airplane wheels.

[0002]

[Prior art]

 In recent years, more and more jet planes fly at higher speeds with jet engine thrust than propeller planes.As a result, traffic volume increases and the size of the aircraft becomes larger. Widely used as a full-scale transport. For example, the Jiangbo jet aircraft can carry a total weight of 380 tons and can carry about 450 to 600 passengers. At the time of takeoff and landing, each of them is mounted on a support leg that is retractably installed under the left and right wings of the aircraft. It is taking off and landing while running on the runway while supporting the total weight of the aircraft with about 10 to 10 wheels.

[0003]

[Problems to be solved by the device]

 However, at the time of landing of the airplane, each wheel axially mounted on the support leg landed on the runway surface in a neutral state, and at the same time as the landing, the total weight of the aircraft was loaded on each wheel and the aircraft progressed. Since it rotates, the wear of the wheel tires is large when the wheel tires are stationary and in contact with the runway surface, and the service life is short.

The present invention has been made in view of the above conventional problems, and an object of the present invention is to capture wind during flight in a tire of a wheel to allow the wheel to move in the same direction as the traveling direction of the aircraft. By providing the wind trapping member to rotate the wheels, the wheels land in advance on the advancing side of the airplane while free-wheeling, so it is possible to smoothly shift to rolling frictional motion with the runway surface, and the wheels land in a stationary state. An object of the present invention is to provide an aircraft wheel that can reduce the degree of tire wear compared to the case.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention is a wheel for an aircraft, which is mounted on a wheel rim 12 of an aircraft wheel which is axially mounted on a support leg of an aircraft body. 14 and at least three wind trapping members 1 attached to the outer surface of the tire 14 in a substantially radial symmetry to trap wind during flight and allow the wheels to freely rotate in the same direction as the traveling direction of the aircraft. 6 and a wheel 10 for an airplane, which is provided with a wind catching member 16 attached to a tire 14 when the airplane is landed and catches the wind and makes it rotate freely while contacting the runway surface.

[0006]

[Action]

 The present invention has a wind trap member on the side of the tire of each wheel mounted on a support leg that is retractably installed under the wing of an airplane. When entering the landing posture while maintaining the neutral state, the wind capturing members on the tire side surfaces of each wheel receive wind and rotate in the same direction as the traveling direction of the airplane. Then, each wheel lands on the runway surface while free-wheeling toward the advancing side of the airframe, which allows smooth transition to rolling frictional motion with the runway surface, which makes the wheels extremely tired compared to when the wheels land in a stationary state. The degree of wear can be reduced and the service life of the wheels is increased.

[0007]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1 and 2 show an aircraft wheel 10 according to an embodiment of the present invention. As is clear from the figure, the wheel 10 for an airplane includes the tire 14 mounted on the wheel rim 12 and the tire 14 for capturing wind during flight and allowing the wheel to freely rotate in the same direction as the traveling direction of the airplane. The outer surface of 14 includes at least three wind trapping members 16 attached in a substantially radial symmetry manner. The tire 14 is a normal tire including a tread that comes into contact with a road surface, a code layer provided on the inner surface side of the tread, and a bead that is fitted to the wheel rim 12, and is inserted inside. The air pressure inside the tube, or in the tubeless, the air pressure directly injected into the tire, supports the load of the airframe and absorbs the shock while traveling on the runway surface.

As shown in FIGS. 3 to 5, the wind catching member 16 is composed of a long cup body 18 made of rubber, synthetic resin, waterproof cloth or the like. The cup body 18 has a linear shape. It has an opening portion 20 and a curved closed portion 22, and the peripheral edge of this opening portion 20 and the peripheral edge of the closed portion 22 are reinforced by a reinforcing material 24 such as a wire rim. A water drain hole 26 is formed at a position near one end of the cup body 18. As shown in FIGS. 1 and 2, the wind reinforcement member 16 has a long portion of each cup body 18 facing the center of the wheel rim 12 at the upper and lower sides of the tire 14 and at the left and right positions. The opening 20 of the cup body 18 is attached and fixed using an adhesive or the like so as to face the traveling direction of the airplane at the lower circumferential position. At least three or more of these wind-trapping members 16 are fixed to the outer surface of the tire 14. If the number of wind-trapping members is two or less, the wind is weakly trapped and the rotation speed of the wheel is slow, and it is preferable that the wind-trapping members be about 3 to 6. As shown in FIG. 1, when the airplane flies in the direction of arrow A, the flight vehicle wheels 10 pivotally supported by the support legs receive wind from the direction of arrow B, and move this wind toward the lower side of the side surface. The openings 20 of the respective cups 18 that are going around will be captured, and in the neutral state, the aircraft wheels 10 will rotate in the same direction as the traveling direction of the aircraft, as indicated by arrow C.

When the airplane wheel 10 of the present invention is pivotally supported on the support leg 30 of the airplane 28 as shown in FIG. 6, when the airplane wheel 10 lands on the runway surface 32, the airplane wheel 10 is in a neutral state. The wind catching member 16 consisting of the cup body 18 attached to the outer surface of the tire 14 of each wheel catches the wind from the direction indicated by the arrow B, which is the direction opposite to the traveling direction of the aircraft indicated by the arrow A. While landing on the runway surface 32 while freely rotating in the same arrow C direction as the traveling direction of the airplane 28. Therefore, each wheel can be smoothly transferred to rolling frictional motion with the runway surface, which can significantly reduce the degree of tire wear and increase the service life compared to when the wheel lands on the runway surface in a stationary state. . In addition, the reduction in tire wear during landing will reduce the amount of tire bulkage when landing, and prevent accidental accidents such as running and departure during landing. The shape of the cup body 18 of the wind supplement member 16 is not limited to the three-month shape, but may be a triangular shape, a square shape, or the like.

[0010]

[Effect of device]

 As described above, according to the airplane wheel of claim 1, the airplane wheel is mounted on the wheel rim, the airplane wheel being axially mounted on the support leg mounted on the body of the airplane. At least three wind capturing members, which are attached in a substantially radial symmetry on the outer surface of the tire, are provided for capturing the wind during flight and allowing the wheels to freely rotate in the same direction as the traveling direction of the aircraft. As a result, the wheels land in advance on the advancing side of the airplane, allowing for smooth rolling transitions to rolling friction with the runway surface, which makes tires extremely tired compared to when the wheels land in a stationary state. It is possible to reduce the degree of wear and increase the service life of the tire.

[Brief description of drawings]

FIG. 1 is a left side view of an aircraft wheel according to an embodiment of the present invention.

2 is a front view of the aircraft wheel of FIG. 1. FIG.

FIG. 3 is an enlarged view showing a wind capturing member attached to a tire of an airplane wheel.

FIG. 4 is a partially enlarged arrow view taken along the line AA of FIG.

5 is a sectional view taken along line BB of FIG.

FIG. 6 is an explanatory view showing a state in which a wheel for an airplane pivotally supported by a supporting leg of the airplane lands on a runway surface.

[Explanation of symbols]

 10 Aircraft Wheels 12 Wheel Rim 14 Tire 16 Wind Capture Member

Claims (1)

[Scope of utility model registration request] 1. A wheel for an airplane, which is axially mounted on a support leg mounted on a body of an airplane, the tire being mounted on a wheel rim, and the wind in flight to capture the same direction as the traveling direction of the airplane. The wind trapping member attached to the tire at the time of landing of an airplane. Wheels for airplanes that come into contact with the runway surface while freely rotating.