Automobile tire with matched wear ring
By setting convex and concave interlocking grooves on the circumference of the car tire and designing a matching rubber wear ring that can be replaced separately, the problems of resource waste and increased costs caused by wear are solved, thereby extending tire life and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 冮殿明
- Filing Date
- 2024-10-12
- Publication Date
- 2026-04-17
AI Technical Summary
Existing car tires suffer from resource waste and increased usage costs due to wear, especially in vehicles with high usage rates or those driven on rough surfaces, where rapid wear leads to premature tire replacement.
Design a car tire with interlocking grooves on its circumference, and a matching rubber wear ring that can fit into it to form a grooved ring. The wear ring can be replaced separately, and the tire is pre-assembled with the rim before assembly.
Replacing worn rings extends tire life, reduces replacement frequency, and decreases rubber resource consumption and usage costs.
Smart Images

Figure CN121871304A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of vehicles, specifically relating to automobile tires. Background Technology
[0002] As is well known, when replacing car tires, except for punctures or cuts beyond repair, two indicators are typically considered: the wear on the circumference reaching the limit mark, and the aging period of the tire material. The investigation found that the wear-to-limit time is often shorter than the aging period, with tires being replaced solely due to wear. This is especially true for vehicles with high usage or those frequently driven on rough, rocky surfaces like mines, where the tread in contact with the ground wears out faster. When a tire's circumference wears to the limit mark, the rest of the tire remains intact, with a longer time remaining before the aging period. Replacing tires with usable parts based solely on wear undoubtedly leads to a waste of rubber resources and high vehicle operating and transportation costs. Summary of the Invention
[0003] The purpose of this invention is to provide a car tire with a matching wear ring, which can be used in combination with a replaceable rubber wear ring surrounding the circumference of the tire to overcome the above-mentioned shortcomings of existing tires.
[0004] The tire of the present invention includes: a circumferential portion, two radial side portions connected to both ends of the circumferential portion, and a mounting hole between the center of the side portions and the rim. The improvement is that the surface of the circumferential portion of the tire has convex teeth or recessed grooves that engage with the matching rubber wear ring.
[0005] In this invention, the protrusions and concave grooves on the tire circumference surface that fit into the matching rubber wear ring are preferably recessed grooves.
[0006] To ensure a stable and uniform connection between the tire of the present invention and the wear ring mounted on its circumference, the tooth grooves are continuously arranged around the tire circumference to form a tooth groove ring, with three tooth groove rings spaced apart on both sides and in the middle of the tire cylindrical surface circumference.
[0007] The matching wear ring has a convex and concave inner circumference that fits into the circumference of the tire's cylindrical surface, and an outer circumference that contacts the ground.
[0008] The present invention assembles a matching wear ring onto the tire before the tire is assembled with the rim.
[0009] The positive effects of this invention are:
[0010] By assembling replaceable wear rings around the tire's circumference, the worn area can be easily combined with or separated from the rest of the tire. Replacing the wear rings prevents the tire from prematurely wearing down and shortening its overall lifespan. This reduces the frequency of tire replacement for high-usage vehicles or those operating on rough surfaces, thereby lowering operating costs and rubber resource consumption for such vehicles. Attached Figure Description
[0011] Figure 1 This is a front sectional view of the tire of the present invention.
[0012] Figure 2 This is a side view of the tire of the present invention. Detailed Implementation
[0013] See Figure 1 , Figure 2 The tire of the present invention includes: a cylindrical circumferential portion 1, a radial side portion 2 integrally connected to both ends of the cylindrical circumferential portion, and a mounting hole at the center of the side portion and the rim. The improvement is that the surface of the cylindrical circumferential portion 1 of the tire has recessed grooves 3 that engage with the protrusions and concavities of a matching rubber wear ring. The grooves 3 are continuously arranged in a closed groove ring in the circumferential direction, and three groove rings are spaced apart at both ends and the middle of the cylindrical circumference of the tire. The matching wear ring is a rubber ring with protrusions and concavities on its inner circumferential surface that engage with the cylindrical circumferential surface of the tire, and its outer circumferential surface contacts the ground.
[0014] The present invention relates to a tire in which a matching wear ring is attached to the tire before the tire is assembled with the rim.
Claims
1. A car tire with a matching wear ring, comprising: The tire has a circumferential portion, two radial side portions connected to both ends of the circumferential portion, and a mounting hole at the center of the side portions and the rim. The tire is characterized by having convex teeth or recessed grooves on the surface of the circumferential portion that engage with the matching rubber wear ring.
2. A car tire with a matching wear ring according to claim 1, characterized in that: The circumferential surface of the tire has recessed grooves that fit into the matching rubber wear ring.
3. A car tire with a matching wear ring according to claim 1 or 2, characterized in that: The tooth grooves are continuously arranged in a closed tooth groove ring around the circumference of the tire, and the tooth groove ring is arranged in three rings at intervals at both ends and the middle position of the tire cylindrical circumference.