Tire detachment prevention structure

Abstract

Traditionally, car tires were mounted by aligning the wheel with a bolt protruding from the brake section at the end of the axle and tightening the bolt and nut. This presented a problem where the bolt would loosen, causing the tire to come off while driving. [Solution] The present invention is a method for preventing tire detachment, characterized by forming a large-diameter bolt with threads around the tip of the axle of a vehicle, forming a cap ring with a threaded groove that fits into the threads of the large-diameter bolt in the center of the wheel which is fitted onto the large-diameter bolt, and connecting and fixing the axle and wheel by fitting the large-diameter bolt and the cap ring together. Furthermore, a small-diameter bolt can be formed at the axis of the tip of the axle, and the wheel can be clamped by fitting a bolt and nut onto the small-diameter bolt to achieve double fixing.

Description

Technical Field

[0001] The present invention forms the tip of the axle part of an automobile into a bolt shape with a large and a small diameter, forms a grooved cap ring on the wheel that matches the large-diameter bolt inside it, and tightens and mounts it. Also, the small-diameter bolt protrudes from the central opening of the wheel, and a bolt nut is tightened and mounted in the direction opposite to the tightening direction of the wheel, which relates to preventing tire detachment.

Background Art

[0002] Normally, a tire is mounted by aligning the wheel with bolts protruding from the brake part attached to the hub and using bolt nuts. Also, although daily inspections are carried out, there is a problem that tire detachment accidents have occurred over the years. As a countermeasure, in-house inspection work is carried out, but the current situation is that it has not yet achieved fundamental detachment prevention.

[0003] For example, Japanese Patent Application Laid-Open No. 2010-167919 discloses a technique in which an outer cylinder spirally engraved in the direction of tightening by the rotation of the axle is screwed into the inlay of the hub, and the outer cylinder is brought into contact with the disk by the thrust of the outer cylinder when tightened by the rotation of the axle, but it is technically different from the present invention.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The problem to be solved is to provide a mounting method for preventing tire detachment in order to prevent tire detachment that occurs while a vehicle such as an automobile is running.

Means for Solving the Problems

[0006] The present invention is characterized by forming a large-diameter bolt with threads around the tip of the axle of a vehicle such as an automobile, and forming a cap ring in the center of the wheel that is fitted onto the large-diameter bolt, which has a thread groove that fits into the threads of the large-diameter bolt, thereby connecting and fixing the axle and the wheel by fitting the large-diameter bolt and the cap ring together.

[0007] Furthermore, a small-diameter bolt is formed at the axis of the tip of the axle, and the axle and wheel are clamped together by fitting a bolt and nut onto the small-diameter bolt. By using a double-layered connection and fixing structure, the fixing force can be strengthened. In this case, the thread direction of the bolt and nut is tightened in the opposite direction to the thread direction that fits the large-diameter bolt and cap ring, making it possible to more reliably prevent loosening and providing a method for mounting tires to prevent them from falling off. [Effects of the Invention]

[0008] The present invention provides a tire mounting method to prevent tire detachment. This method involves directly fixing the wheel to a large-diameter bolt provided at the end of the axle via a cap ring using screws, and then further securing the axle and wheel by clamping them together with a bolt and nut on a small-diameter bolt provided at the axis of the axle end. This double-securation prevents loosening of the screws and thus prevents the tire from detaching. Furthermore, by tightening the bolt and nut in the opposite direction to the screw direction of the wheel, loosening can be prevented more reliably, contributing to the prevention of tragic accidents caused by tire detachment, as has been the case with conventional methods. [Brief explanation of the drawing]

[0009] [Figure 1] Cross-sectional view of the tire mounting according to the present invention [Figure 2] Front view of the wheel of the present invention [Modes for carrying out the invention] [Examples]

[0010] The present invention's method for preventing tire detachment will be described with reference to the drawings.

[0011] The method will be explained in detail with reference to Figures 1 and 2. In the tire mounting method 1, a hub 4 and brake 5 are provided on the axle portion 6, and a large-diameter bolt 7 with threads is formed around the tip of the axle portion. A cap ring 3 is formed in the center of the wheel 2, with a groove that fits into the threads of the large-diameter bolt 7. The large-diameter bolt 7 and the cap ring 3 are fastened and connected by screw fitting.

[0012] A small-diameter bolt 8 is formed at the axis of the tip of the axle, and a bolt opening 10 is provided in the center of the wheel 2. The bolt opening 10 is an opening for passing the small-diameter bolt 8 through. The small-diameter bolt 8 protruding from the bolt opening 10 is tightened with a bolt and nut 9 to securely clamp the wheel and the axle 6. This creates a double-layered fixing structure using a large-diameter bolt 7 and a small-diameter bolt 8, reliably preventing the tire from falling off. It is desirable that the diameter of the bolt opening 10 be smaller than the outer diameter of the bolt and nut 9.

[0013] The small-diameter bolt and nut 9 are tightened in the opposite direction to the tightening direction of the large-diameter bolt 7. This creates a structure that is less likely to loosen the threads, thus more reliably preventing the tire from falling off. For example, if the large-diameter bolt 7 is tightened clockwise, the small-diameter bolt and nut 9 are tightened counterclockwise. [Industrial applicability]

[0014] The tire detachment prevention mounting method of the present invention is suitable for industrial production. [Explanation of Symbols]

[0015] 1. How to install tires 2 wheels 3. Cap rings for large diameter bolts 4 hubs 5 Brake 6 Axle section 7 Large diameter bolts 8 small diameter bolts 9 Small diameter bolts and nuts 10 Openings

Claims

1. A method for preventing tire detachment is characterized by forming a large-diameter bolt with threads around the tip of the axle of a vehicle, forming a cap ring in the center of the wheel that is fitted onto the large-diameter bolt and has a thread groove that fits onto the threads of the large-diameter bolt, and connecting and fixing the axle and wheel by fitting the large-diameter bolt and the cap ring together.

2. The method for preventing tire detachment according to claim 1, characterized in that a small-diameter bolt is formed on the axis of the tip of the axle portion, and the axle portion and the wheel are clamped together by fitting a bolt and nut onto the small-diameter bolt.

3. The method for preventing tire detachment according to claim 2, characterized in that the thread direction for fitting the large-diameter bolt and the cap ring and the thread direction for fitting the small-diameter bolt and bolt nut are tightened in opposite directions.

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