Tire detachment preventing structure

Abstract

[Problem] Conventionally, an automobile tire has been installed by aligning a tire wheel to bolts protruding out on an alignment surface of a brake part attached to an axle hub, and then fastening with nuts. Therefore, there has been a problem that the bolts come loose, causing a tire detachment accident during travel. [Solution] In the present invention, a fastening threaded groove is provided to the outer periphery of a brake part attached to a hub part provided to an automobile axle. A coupling part that fits said groove is provided by providing a fastening coupling and a receiving threaded groove to respective alignment surfaces of an inside tire wheel and an outside tire wheel; and the foregoing are fastened and coupled, and thereafter fastened together using bolts and nuts. Lastly, a bolt-nut integrated fixing cover having trench-type socket sections that are aligned to all of the fastening sections of the bolts and nuts is installed, and the inside tire wheel and the outside tire wheel are fastened together with cover-securing bolts. Consequently, due to the effect of doubled / tripled coupling installation, a structure that enables prevention of tire detachment is achieved.

Description

Tire fall prevention structure

[0001] The present invention relates to a tire drop-off prevention structure in which screw grooves are provided on the outer periphery of the drum brake part connected to the axle hub of an automobile and on the outer periphery of the inner protruding part of the disc brake, and a cap ring-shaped cap is formed on the inside of the tire wheel on the side where it is to be mounted to match the grooves, and a tightening screw groove is provided on the inside of this cap ring for mounting.

[0002] Normally, tires are attached by aligning the wheel with the bolt mating surface of the brake part attached to the hub, and then tightening the nut on the protruding bolt. Although daily safety inspections are also carried out during operation, there has been a problem over the years of accidents caused by tires falling off. As a solution to this problem, inspections are carried out by the company and drivers, but the current situation is such that no fundamental measures have been taken to prevent tires from falling off.

[0003] For example, Japanese Patent Application Laid-Open No. 2010-167919 discloses a technology in which an outer tube threaded in a direction that tightens with the rotation of the axle is screwed into the hub spigot at the fastening portion of the wheel of a vehicle such as an automobile, and when the outer tube is tightened with the rotation of the axle, the thrust of the outer tube causes the outer tube to abut against a disk, but this technology is technically different from the present invention.

[0004] JP 2010-167919 A ​​(paragraph 0022, Figure 4)

[0005] The problem to be solved is to provide a double-linking mounting method that prevents the tire from falling off while the vehicle is running by providing a screw groove on the outer periphery of the protruding part of the drum brake attached to the hub or the inner protruding part of the disc brake, fastening and mounting a tire wheel with a capping formed to fit the groove, and then, after fastening the bolts and nuts, forming a trench-type socket-integrated fixing cover that matches the position and shape of all the bolts and nuts, and attaching it to the tire wheel, thereby preventing the bolts and nuts from loosening or popping out and preventing the tire from falling off.

[0006] This invention is characterized by forming a thread groove on the outer periphery of a disc brake protrusion or drum brake attached to an automobile axle hub, forming a connecting capping on the inner surface of the inner tire wheel to fit into the groove, and forming a fastening thread groove on the inside of the connecting capping to fit into the outer periphery thread groove of the drum brake, and fastening and fixing the brake part like tightening a screw. Also, this is a mounting method for preventing tire detachment, characterized in that after fastening the wheel with bolts and nuts as usual, by attaching to the wheel an integrated bolt and nut fixing cover having trench-type sockets that match the position and shape of all the bolt nuts, loosening and popping out of each bolt and nut can be prevented.

[0007] The method of installing a tire detachment prevention device for standard-sized automobiles is to form a thread groove on the outer periphery of the brake disc's inner protrusion, form a corresponding cap ring on the inside of the wheel, and then tighten the tire. Large vehicles are also equipped with dual tires. In this case, the inner tire is installed by forming a thread groove on the outer periphery of the drum brake attached to the hub, and then forming a tightening cap ring on the inside of the inner tire wheel, which is attached to the thread groove, and tightening the cap ring. Next, the outer tire is installed. In this case, an inner cap ring with a tightening thread groove of the same diameter as the brake's outer periphery is formed on the outside of the inner wheel, and a cap-shaped outer cap ring is formed on the outer surface of the outer tire wheel with a tightening thread groove on the inside to match the shape of the inner ring. The inner and outer cap rings are then rotated to fit the grooves and tightened.

[0008] After the wheel is installed, the hub, brake, and tire wheel are connected with bolts, and the bolts and nuts are tightened into the threaded openings in the hub that receive the bolts. Finally, a trench-type socket integrated fixing cover is formed to fit all the nuts, and attached to the outer wheel and connected together with the inner tire wheel, preventing the bolts and nuts from loosening or popping out. Instead of installing the tire wheel in a single bolt-nut connection process as in the past, this method tightens and connects the brake drum, the outer periphery of the disc brake, and the inner tire wheel, as well as the inner tire wheel and outer tire wheel. Furthermore, by fixing all nuts that tend to loosen individually with an integrated trench-type socket cover, it is possible to completely prevent the nuts from loosening or popping out, and is expected to have a revolutionary effect in preventing the tire from falling off.

[0009] The method of mounting a tire to prevent it from falling off of the present invention involves forming a tightening groove on the outer periphery of the brake part attached to the axle hub, then forming a bolt hole on the inside of the tire wheel that fits the shape of the groove, forming a cap ring shape at any point on the outer periphery, and forming a tightening groove on the inside of this to connect, then tightening and connecting with bolts, and finally attaching a trench-type socket integrated fixing cover to all nuts, completely preventing the bolts and nuts from loosening, which can contribute to preventing tragic accidents caused by tires falling off as in the past.

[0010] Installation diagram of double tires of the present invention Installation diagram of single tire of the present invention Front view of bolt and nut integrated fixing cover of the present invention Side cross-sectional view of bolt and nut integrated fixing cover of the present invention Installation diagram of bolt and nut integrated fixing cover

[0011] The method for attaching a tire detachment prevention device of the present invention will be described with reference to the drawings.

[0012] This will be described in detail with reference to Figures 1 and 5. A tire / wheel mounting method 1 involves forming a tightening thread groove 4 on the outer periphery of a drum brake 3 attached to a hub portion 2 formed on an axle 13, then forming a connecting cap ring 6 that fits into the tightening thread groove 4 on the outer periphery of the drum brake 3 of an inner wheel 5, and forming a brake tightening groove 7 on the inner side of the cap ring. Next, an outer tire / wheel 11 is connected by forming an outer wheel receiving portion thread groove 8 on the wheel mating surface 12 of the inner wheel 5, the same shape as the tightening thread groove 4 on the outer periphery of the drum brake 3, forming an outer wheel cap ring 10 that fits the outer wheel receiving portion thread groove 8, and then forming an outer wheel tightening thread groove 9 on the inner side of the outer wheel cap ring 10 for connection to the outer tire / wheel 11. Next, bolts and nuts 22 are tightened into bolt holes 14 that are fitted to bolt receiving openings 15.

[0013] As shown in Figure 5, the bolts and nuts 22 on the outer wheel front portion 20 and outer wheel side portion 21 are provided with bolt and nut integrated fixing covers 23, and the fastening nuts of the bolts and nuts 22 are formed with trench-type socket portions 24 that fit all of them. Finally, the bolt and nut integrated fixing covers 23, the inner wheel 5, and the outer wheel 11 are connected to the outer wheel front portion 20 with cover fastening bolts 25, thereby completely preventing the bolts from loosening and jumping out.

[0014] Also, as shown in Figure 2, tire / wheel mounting method 1 has been described for mounting a drum brake and a double tire, but Figure 2 illustrates mounting a single tire with a disc brake 16. The disc brake 16 is mounted within the outer hub peripheral portion 18 of the hub portion 2 formed on the axle portion 13, and a tightening screw groove 4 is provided on the outer periphery of the inward protrusion 17 of the disc rotor 19 of the disc brake 16. An inner wheel 5 formed to match this shape is formed with a connecting cap ring 6, and a brake portion tightening groove 7 is provided on its inner side for connection. Next, bolts and nuts 22 are tightened into the bolt receiving openings 15 and bolt holes 14. Finally, a bolt-nut integrated fixing cover 23 is attached, similar to the one attached to the double tire, to complete the mounting.

[0015] The drum brake 3 also has a tightening thread 4 formed on its outer periphery, which is connected to the inner wheel 5 by a tightening cap ring 6. This is then connected to the outer tire wheel 11 by the same threaded receiving and tightening sides. Next, bolts and nuts 22 are tightened and connected. Finally, all of the bolts and nuts 22 are secured with a bolt-nut-integrated fixing cover 23. As described above, the present invention contributes to preventing tragic accidents caused by tire detachment through its double- and triple-layered installation. The inner protruding portion 17 of the disc rotor 19 has a tightening thread 4 formed on its outer periphery, which is secured with a cap ring 6 on the inner wheel 5. Finally, all of the fastening portions of the bolt nuts 22 are secured to the inner wheel 5 by the bolt-nut-integrated fixing cover 23 and cover-fixing bolts 25.

[0016] Figure 3 is a front view of the bolt and nut integrated fixing cover 23, and Figure 4 is a side cross-sectional view of the bolt and nut integrated fixing cover 23. By covering all of the bolts and nuts 22, the bolts and nuts 22 are prevented from loosening. The trench-type socket portion 24 provided on the bolt and nut integrated fixing cover 23 makes it possible to adjust to each angle, even if the rotational angles of the bolts and nuts 22 are different, due to the trench structure, thereby improving installation ease and preventing loosening.

[0017] In addition, tightening screw grooves of any width are provided on the outer periphery of the drum brake 3 and the outer periphery of the disc rotor inner protrusion 17, but it is desirable that the tightening direction be in the direction in which the left and right wheels are tightened along the forward direction of the vehicle.

[0018] As shown in FIG. 5, the bolt and nut 22 are provided as a single piece for fastening, but it is also possible to fasten the bolt and nut by using an inner nut in the middle.

[0019] The tire detachment prevention structure of the present invention can be produced industrially.

[0020] REFERENCE SIGNS LIST 1 Tire wheel mounting method 2 Hub portion 3 Drum brake 4 Tightening screw groove 5 Inner wheel 6 Connecting cap ring 7 Brake portion tightening groove 8 Outer wheel receiving screw groove 9 Outer wheel tightening screw groove 10 Outer wheel cap ring 11 Outer tire wheel 12 Wheel mating surface 13 Axle portion 14 Bolt hole 15 Bolt receiving opening 16 Disc brake 17 Inner protrusion 18 Hub outer periphery 19 Disc rotor 20 Outer wheel front portion 21 Outer wheel side portion 22 Bolt nut 23 Bolt and nut integrated fixing cover 24 Trench-type socket portion 25 Cover fixing bolt 26 Cover fixing bolt hole

Claims

1. A tire detachment prevention structure characterized by providing a tightening screw groove on the outer periphery of a drum brake provided on the hub portion of the axle, providing a connecting cap ring on the brake side of the inner tire wheel that fits into the screw groove provided on the drum brake, and providing a brake tightening screw groove on the inner side of the connecting cap ring.

2. A tire detachment prevention structure characterized by providing a tightening screw groove on the outer periphery of the inner protruding portion of a disc brake provided on the hub of the axle portion, providing a connecting cap ring on the brake side of the inner tire wheel that fits into the screw groove provided on the disc brake, and providing a brake tightening screw groove on the inner side of the connecting cap ring.

3. A tire detachment prevention structure as described in claim 1, characterized in that an outer wheel receiving screw groove of the same diameter as the drum brake is provided in a ring shape on the wheel mating surface of the inner tire wheel, an outer wheel cap ring is provided on the wheel mating surface of the outer tire wheel, and a screw groove for tightening the outer wheel is provided on the inside of the outer wheel cap ring.

Images