Air retention structure of pneumatic tire
By fixing leakage-proof film on the inner wall of the tire crown part, the problem of air leakage in inflatable tires due to foreign objects is solved, and the safety performance improvement of can continue to drive in the event of air leakage is achieved.
Patent Information
- Application Number
- CN201910373753.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-05-07
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2039-05-07
AI Technical Summary
Inflatable tires are prone to leak air due to foreign objects during driving, which makes it impossible to continue driving for a long time. The existing technology solutions are costly and complex in processing.
Fix several leak-proof film roots on the inner wall of the crown part of the tire carcass. Each root is connected to a leak-proof film. The leak-proof film roots and the connection part are preset at an obtuse angle. All films are tilted to the right and are in the phase Lap the two films adjacent to them to ensure that the film is closely attached to the tire.
Through the design of leak-proof film, gas leakage can be prevented when the tire is punctured, the safety performance of the tire is improved, and the driving can continue to be carried out in the event of air leakage.
Smart Images
Figure CN110001312B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to an air retaining structure of a pneumatic tire, and belongs to the technical field of pneumatic tire structures. Background Art
[0002] Pneumatic tires are prone to puncture foreign objects during driving, causing tire leakage. When leakage is found, the tire pressure is too low and it is not suitable to continue driving, which causes great trouble to the driver. How can the driver continue driving under this circumstance? There are currently two main methods. The common method is to provide self-sealing rubber in the tire, but this method generates high heat, is costly, and requires secondary processing by tire manufacturers, which is time-consuming and labor-intensive. Another method is to design a self-supporting tire, but the manufacturing cost is high and the driving comfort performance is poor. At present, there is an urgent need for a low-cost and simple processing method to solve this problem. Summary of the invention
[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an air retaining structure for a pneumatic tire which has a simple structure, an obvious air leakage prevention effect and a low cost.
[0004] According to the technical solution provided by the present invention, the air retaining structure of the inflatable tire has a plurality of leak-proof film roots fixed on the inner wall of the crown portion of the tire carcass, each of which is integrally connected with a piece of leak-proof film, the connection portion between the leak-proof film roots and the leak-proof film is preset to form an obtuse angle, and all the leak-proof films are tilted to the right; of two adjacent leak-proof films, the right end portion of the leak-proof film on the left is placed on the left end portion of the leak-proof film on the right.
[0005] The angle between the root of the leak-proof film and the connection part of the leak-proof film is preset to be 90-100 degrees.
[0006] The invention solves the problem that a pneumatic tire cannot continue to travel for a long time when it is punctured and leaks air, thereby improving the safety performance of the tire. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION
[0008] The present invention will be further described below in conjunction with specific embodiments.
[0009] The air retaining structure of the pneumatic tire of the present invention has a plurality of leak-proof film root portions 2 fixed on the inner wall of the crown portion of the tire carcass 1, and a leak-proof film 3 is integrally connected to each leak-proof film root portion 2. The connection portion between the leak-proof film root portion 2 and the leak-proof film 3 is preset to form an obtuse angle, and all the leak-proof films 3 are tilted to the right; between two adjacent leak-proof film sheets 3, the right end portion of the leak-proof film 3 located on the left side is placed on the left end portion of the leak-proof film 3 located on the right side.
[0010] The connection portion between the leak-proof film root 2 and the leak-proof film 3 is preset to be 90-100 degrees.
[0011] In the present invention, the connection portion of the leak-proof film root 2 and the leak-proof film 3 is preset to be an obtuse angle, so that the leak-proof film 3 can be tilted in a uniform direction by the centrifugal force during the rolling process of the tire and closely adhered to the tire.
[0012] In two adjacent leakproof films 3, the right end of the leakproof film 3 on the left is placed on the left end of the leakproof film 3 on the right; this ensures that the leakproof film 3 is attached to all areas of the inner wall of the crown part of the tire carcass 1.
[0013] The leakproof film root 2 and the leakproof film 3 do not need to be specially customized, and can be obtained by capsule pressing or other methods during the vulcanization process. The rubber type of the leakproof film root 2 and the leakproof film 3 are both the rubber type of the tire inner airtight layer.
[0014] When the tire carcass 1 is punctured, the leak-proof film 3 is pushed open and will not be damaged by the puncture. When the foreign object is removed and starts to leak, the tire rotates and the leak-proof film 3 is tightly attached to the tire carcass 1 under the action of centrifugal force and atmospheric pressure in the tire to prevent further leakage.
Claims
1. An air retaining structure for a pneumatic tire, characterized in that: A plurality of leakproof film root portions (2) are fixed on the inner wall of the crown portion of the tire carcass (1), and a leakproof film (3) is integrally connected to each leakproof film root portion (2). The connection portion between the leakproof film root portion (2) and the leakproof film (3) is preset to form an obtuse angle, and all the leakproof films (3) are tilted to the right; in two adjacent leakproof films (3), the right end portion of the leakproof film (3) located on the left side is placed on the left end portion of the leakproof film (3) located on the right side; The connection portion between the leak-proof film root (2) and the leak-proof film (3) is preset to be 90-100 degrees.
Citation Information
Patent Citations
Anti-puncturing safe tyre
CN103350620A
High strength antiseep restoration area
CN205842091U
Air retaining structure of pneumatic tire
CN209869980U