CN-121989593-A - Pneumatic tire and tire module

Abstract

According to one embodiment of the present invention, there is provided a pneumatic tire including a base portion having an opening along an inner circumference so as to be capable of being fixed to a circular ring shape of a wheel structure body, and a plurality of protruding portions that are joined to an outer circumference of the base portion, protrude in a circumferential outer direction of the base portion, and have an inner space.

Inventors

• YIN XIANGJUN

Assignees

• 前进医疗公司

Dates

Publication Date

20260508

Application Date

20250805

Priority Date

20241108

Claims (11)

1. 1. A pneumatic tire, comprising: The wheel structure includes a wheel structure body having a wheel, a ring-shaped base portion having an opening along an inner circumference so as to be capable of being fixed to the wheel structure body, and a plurality of protruding portions coupled to an outer circumference of the base portion, protruding in a circumferential outer direction of the base portion, and having an inner space.
2. 2. The pneumatic tire of claim 1, wherein, The plurality of protruding portions are arranged at intervals of a set interval.
3. 3. The pneumatic tire of claim 1, wherein, The base portion includes: the tire includes a base portion, a support portion constituting an outer circumference of the base portion for coupling a plurality of protruding portions, side wall portions extending from both sides of the support portion, and bead portions formed at one end portion of the side wall portions for fixing to a rim of a wheel structure.
4. 4. The pneumatic tire of claim 3, wherein, The support portion includes a plurality of holes that communicate a first space formed by the protruding portion and the support portion and a second space formed by the support portion and the side wall portion.
5. 5. The pneumatic tire of claim 4, wherein, The support portion includes a cover portion for opening or closing the hole, and the cover portion is configured to open the hole when the pressure of the second space is greater than the pressure of the first space, and to close the hole when the pressure of the second space is less than or equal to the pressure of the first space.
6. 6. The pneumatic tire of claim 1, wherein, The protrusion includes: and a side surface portion extending from both sides of the ground portion toward the base portion.
7. 7. The pneumatic tire of claim 6, wherein, The land portion includes a first tread pattern recessed in an inward direction, and the side portion includes a second tread pattern recessed in an inward direction, and an area of the second tread pattern of the side portion is formed larger than an area of the first tread pattern of the land portion on a unit area basis in a cross section of the protruding portion cut into a cross section parallel to a circumference of the base portion.
8. 8. The pneumatic tire of claim 6, wherein, When the pneumatic tire passes over the step, the side surface portion of the protruding portion comes into contact with the step surface, and the shape of the protruding portion deforms according to the shape of the step surface according to the contact of the side surface portion of the protruding portion with the step surface.
9. 9. The pneumatic tire of claim 1, wherein, The protruding portion is configured such that the width gradually increases toward the circumferential outer side.
10. 10. The pneumatic tire of claim 1, wherein, The base portion includes: A support part forming an outer circumference of the base part for coupling the plurality of protruding parts, side wall parts extending from both sides of the support part, and A bead portion formed at one end portion of the sidewall portion for being fixed to a rim of the wheel structure body, The protrusion includes: a ground portion which is in contact with the ground, and side portions which extend from both sides of the ground portion toward the base portion, The ratio (L6/L5) of the length L6 of the land portion from the central axis of the pneumatic tire to the protruding portion to the length L5 of the support portion from the central axis of the pneumatic tire to the base portion is 1.2 or more and 1.5 or less.
11. 11. A tire module is a tire module including a pneumatic tire and a wheel structure, wherein, The pneumatic tire includes a base portion having an opening along an inner circumference so as to be fixable to a circular ring shape of a wheel structure body, and The said one combined with the outer circumference of the base part and protruding to the outer circumference direction and comprising a plurality of protruding parts with inner space, The base portion is fixed to the wheel structure.

Description

Pneumatic tire and tire module Technical Field The present invention relates to a pneumatic tire and a tire module. Background Pneumatic tires are important components of vehicles that make direct contact with the road, support the weight of the vehicle during travel, absorb impact forces, and provide stable grip under various travel conditions. A typical pneumatic tire is composed of a tread surface on which a ground contact surface is formed on the outer side and various components for maintaining the air pressure inside the tire. The conventional pneumatic tire has a structure for supporting a vehicle by maintaining an internal air pressure, but when the tire is broken or damaged, there is a problem in that the internal air rapidly leaks, and the vehicle cannot run. This can lead to a vehicle stop, with the risk of causing traffic accidents, especially when traveling at high speeds. Even if the tire is slightly broken, the entire function of the tire is lost, so that inconvenience occurs in that the driver must replace the tire immediately. Further, since the conventional pneumatic tire is designed mainly considering running on a flat road surface, there is a risk of insufficient grip or damage to the tire on a step or the like or rough terrain. Therefore, there is a need for a tire structure that can easily climb a step or the like and enable a vehicle to run even if a part of the tire is punctured. Disclosure of Invention Problems to be solved by the invention The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a pneumatic tire and a tire module, which can prevent rapid leakage of internal air even when a tire is broken, support the weight of a vehicle by other parts, and improve running performance on a step or off-road terrain. The problems to be solved by the present invention are not limited to the above-described problems, and other problems not mentioned can be clearly understood by those skilled in the art to which the present invention pertains based on the following description. Technical scheme for solving problems As an aspect to solve the above-described problems, a pneumatic tire according to an embodiment of the present invention includes a base portion having an opening along an inner circumference so as to be capable of being fixed to a circular ring shape of a wheel structure body, and a plurality of protruding portions that are joined to an outer circumference of the base portion, protrude in a circumferential outer direction of the base portion, and have an inner space. The plurality of protruding portions may be arranged at a set interval. The base portion may include a support portion constituting an outer circumference of the base portion for coupling the plurality of protruding portions, sidewall portions extending from both sides of the support portion, and bead portions formed at one end portion of the sidewall portions for fixing to a rim of the wheel structure. The support portion may include a plurality of holes that communicate a first space formed by the protruding portion and the support portion and a second space formed by the support portion and the side wall portion. The support part includes a cover part for opening or closing the hole, and the cover part may be configured to open the hole when the pressure of the second space is greater than the pressure of the first space and to close the hole when the pressure of the second space is less than or equal to the pressure of the first space. The protruding portion may include a ground contact portion contacting the ground, and side portions extending from both sides of the ground contact portion toward the base portion. The ground contact portion may include a first tread pattern recessed in an inward direction, and the side surface portion may include a second tread pattern recessed in an inward direction, and an area of the second tread pattern of the side surface portion may be formed larger than an area of the first tread pattern of the ground contact portion on a unit area basis in a cross section of the protruding portion cut into a cross section parallel to a circumference of the base portion. When the pneumatic tire passes over the step, the side surface portion of the protruding portion is brought into contact with the step surface, and the shape of the protruding portion can be deformed in accordance with the shape of the step surface according to the contact of the side surface portion of the protruding portion with the step surface. The protruding portion may be configured such that the width gradually becomes larger toward the circumferential outside direction. The ratio (L6/L5) of the length L6 of the land portion from the central axis of the pneumatic tire to the protruding portion to the length L5 of the support portion from the central axis of the pneumatic tire to the base portion may be set to 1.2 or