Raised knurling unit and tyre comprising the same

Abstract

A raised knurling unit includes a first knurling portion extending obliquely with respect to a bottom surface of the raised knurling unit and a plurality of second knurling portions each extending obliquely with respect to the bottom surface. The first knurling portion includes a first knurling portion bottom. Each of the plurality of second knurling portions includes a second knurling portion bottom. A distance between the second knurling portion bottoms of the plurality of second knurling portions is less than a length of the first knurling portion bottom.

Description

Technical Field

[0001] This disclosure relates to a protruding knurling unit and a tire including the protruding knurling unit. Background Technology

[0002] Tires are mounted on a wide variety of vehicles, from small cars to heavy equipment vehicles, to support the vehicle's load and perform functions such as transmitting the vehicle's power to the ground, braking, and cushioning vibrations and impacts generated from the ground during vehicle operation. Meanwhile, tire sidewalls are typically marked with tire information in various ways, such as tire specifications, production date and manufacturer, shading patterns for functional and aesthetic purposes, and company and product logos.

[0003] Traditionally, to improve the visibility of markings on the sidewall, the surrounding area is usually painted white or formed into small grooves or bumps. However, simply painting the surrounding area white or forming grooves does not create a significant contrast in visibility with the rest of the tread, resulting in markings that are not prominent enough.

[0004] Therefore, tires with narrower serrations have been studied to improve visibility. However, simply reducing the spacing between the serrations has limitations because it cannot effectively reflect light from sources such as sunlight. Summary of the Invention

[0005] In view of the above, this disclosure provides a tire that can effectively reflect or absorb light from a light source and improve the visibility of characters.

[0006] According to one aspect of this disclosure, a raised knurled unit is provided, comprising: a first knurled portion extending obliquely relative to the bottom surface of the raised knurled unit; and a plurality of second knurled portions, each second knurled portion extending obliquely relative to the bottom surface, wherein the first knurled portion includes a first knurled portion bottom, each of the plurality of second knurled portions includes a second knurled portion bottom, and the distance between the second knurled portion bottoms of the plurality of second knurled portions is less than the length of the first knurled portion bottom.

[0007] Furthermore, the first knurled portion can be configured as multiple first knurled portions, the length of the bottom of the second knurled portion can be equal to the length of the bottom of the first knurled portion, each first knurled portion can also include multiple first knurled portion sides of equal length, and each second knurled portion can also include multiple second knurled portion sides of equal length.

[0008] Furthermore, the raised knurling unit may further include: a third knurling portion, disposed between the first knurling portion and the second knurling portion, and extending obliquely relative to the bottom surface. The third knurling portion may include: a first side surface of the third knurling portion, contacting the side surface of the first knurling portion; and a second side surface of the third knurling portion, contacting the side surface of the second knurling portion, wherein the angle of inclination of the first side surface of the third knurling portion relative to the bottom surface may be smaller than the angle of inclination of the second side surface of the third knurling portion relative to the bottom surface.

[0009] Furthermore, the heights of the first knurled portion protruding from the bottom surface, the heights of the second knurled portion protruding from the bottom surface, and the heights of the third knurled portion protruding from the bottom surface can be equal.

[0010] According to a second aspect of this disclosure, a tire is provided, comprising: a plurality of raised knurled units formed on the sidewall of the tire, wherein each raised knurled unit includes a first knurled portion, a second knurled portion, and a third knurled portion protruding outward from the outer surface of the sidewall; the first knurled portion includes a first knurled portion side surface and a first knurled portion bottom surface; the second knurled portion includes a second knurled portion side surface and a second knurled portion bottom surface, the length of the second knurled portion bottom surface being equal to the length of the first knurled portion bottom surface; the third knurled portion includes: a third knurled portion first side surface contacting the first knurled portion side surface; a third knurled portion second side surface contacting the second knurled portion side surface; and a third knurled portion bottom surface, the first knurled portion bottom surface and the second knurled portion bottom surface contacting each other; and at least one of the plurality of raised knurled units is disposed in a direction offset from another of the adjacent raised knurled units.

[0011] Furthermore, the tire may also include an insertion region, and the plurality of raised knurled units may include a plurality of first raised knurled units arranged to extend along a first direction and a plurality of second raised knurled units arranged to extend along a direction different from the first direction, and the insertion region may be surrounded by the third knurled portions of the plurality of first raised knurled units arranged adjacent to each other and the third knurled portions of the plurality of second raised knurled units arranged adjacent to each other.

[0012] Furthermore, the plurality of raised knurled units may include a plurality of first raised knurled units arranged to extend along a first direction and a plurality of second raised knurled units arranged to extend along a direction different from the first direction. The plurality of first raised knurled units and the plurality of second raised knurled units may be arranged alternately along the first direction, and the first raised knurled units and the second raised knurled units arranged adjacent to each other in the first direction may be configured such that the bottom of the first knurled portion of the first raised knurled unit and the bottom of the second knurled portion of the second raised knurled unit are in contact with each other or face each other.

[0013] Furthermore, the plurality of first knurled units and the plurality of second knurled units can be arranged alternately along the second direction, and the first knurled units and the second knurled units arranged adjacent to each other in the second direction can be configured such that the bottom of the first knurled portion of the second knurled unit is in contact with or faces the bottom of the second knurled portion of the first knurled unit.

[0014] According to embodiments of this disclosure, the tire can effectively reflect or absorb light from a light source, thereby improving the visibility of the characters. Attached Figure Description

[0015] Figure 1 It is a tire according to the first embodiment of the present disclosure, in which a plurality of raised knurled units and a plurality of insertion areas are arranged inside the characters.

[0016] Figure 2 It is a tire according to the first embodiment of the present disclosure, in which a plurality of raised knurled units and a plurality of insertion areas are arranged on the outside of the characters.

[0017] Figure 3 yes Figure 1 A perspective view of the raised knurled unit shown.

[0018] Figure 4 yes Figure 3 The first knurled part.

[0019] Figure 5 yes Figure 3 The second knurled part.

[0020] Figure 6 yes Figure 3 The third knurled part.

[0021] Figure 7 yes Figure 3 Floor plan.

[0022] Figure 8 This is a perspective view of a plurality of raised knurled units and a plurality of insertion areas according to a first embodiment of the present disclosure.

[0023] Figure 9 yes Figure 8 Floor plan.

[0024] Figure 10 This is a plan view of the raised knurled unit according to the second embodiment of the present disclosure.

[0025] Figure 11 This is a perspective view of a plurality of raised knurled units and a plurality of insertion areas according to a second embodiment of the present disclosure.

[0026] Figure 12 yes Figure 10 The third knurled part.

[0027] Figure 13 yes Figure 10 Floor plan.

[0028] Figure 14 and Figure 15 This is a perspective view of a raised knurled unit according to a third embodiment of the present disclosure.

[0029] In the accompanying drawings of this specification, shading lines may be markings indicating surfaces rather than cross-sections. Detailed Implementation

[0030] The specific embodiments for implementing the technical ideas of this disclosure will now be described in detail with reference to the accompanying drawings.

[0031] In describing this disclosure, detailed descriptions of known configurations or functions may be omitted in order to clarify this disclosure.

[0032] When an element is described as being “connected,” “supported,” “entered,” “provided,” “conveyed,” or “in contact” with another element, it can be understood that the element can be directly connected to, supported, entered into, provided to, conveyed to, or in contact with another element, but there may be other elements in between.

[0033] The terminology used in this disclosure is for describing particular embodiments only and is not intended to limit the invention. Unless the context clearly specifies otherwise, singular expressions include plural expressions.

[0034] Furthermore, it should be noted that in this disclosure, the descriptions of "top," "bottom," "side," etc., are based on the illustrations in the accompanying drawings, and these descriptions may be modified when the orientation of the corresponding object changes. For the same reason, some elements in the drawings are exaggerated, omitted, or shown schematically, and the dimensions of each element do not fully reflect the actual dimensions.

[0035] Various elements may be described using terms including ordinal numbers such as first and second, but the corresponding elements are not limited by these terms. These terms are only used to distinguish one element from another.

[0036] In this specification, it should be understood that terms such as “comprising” are intended to indicate the presence of a particular feature, region, integer, step, operation, element, combination and / or group thereof disclosed in the specification, and are not intended to exclude the possibility that one or more other particular features, regions, integers, steps, operations, elements, combinations and / or groups thereof may be present or added.

[0037] In the following text, reference will be made to Figures 1 to 7A tire 1 according to a first embodiment of this disclosure is described. The tire 1 can be mounted on a wheel rim (not shown) and on a vehicle. The sidewall of the tire 1 may include letters such as a brand name and product name. The area on the tire 1 forming the letters may include raised knurled units 10 and insertion areas 20 to improve visibility. The tire 1 may include raised knurled units 10 and insertion areas 20.

[0038] The raised knurling unit 10 can be a raised area used to enhance visibility. Multiple raised knurling units 10 can be provided. The arrangement of the multiple raised knurling units 10 will be described below. The multiple raised knurling units 10 and multiple insertion areas 20 can be arranged inside or outside the letters formed on the sidewall of the tire. The raised knurling unit 10 may include a first knurled portion 100, a second knurled portion 200, and a third knurled portion 300.

[0039] Refer again Figure 4 The first knurled portion 100 may extend obliquely relative to the bottom surface (e.g., the outer surface of the sidewall). The first knurled portion 100 may be an isosceles triangle with equal side lengths within a predetermined tolerance range. The first knurled portion 100 may be configured as a plurality of first knurled portions. The first knurled portion 100 may include a first knurled portion side surface 110 and a first knurled portion bottom surface 120.

[0040] The first knurled side surface 110 can be one side surface of the first knurled portion 100. Multiple first knurled side surfaces 110 can be provided. Within a predetermined tolerance range, the lengths of the multiple first knurled side surfaces 110 can be equal. The first knurled side surface 110 can contact the first side surface 310 of the third knurled portion.

[0041] The length of the first knurled side surface 110 can be referred to as the first knurled side surface length a. Within a predetermined tolerance range, the first knurled side surface length a can be equal to the first side surface length e of the third knurled portion, which will be described later. The first knurled side surface length a can be less than at least one of the following: the first knurled bottom length b, the second knurled side surface length c, the second knurled bottom length d, the third knurled second side surface length f, the third knurled bottom length g, and the insertion area side surface length h.

[0042] The bottom 120 of the first knurled portion can be the surface of the first knurled portion 100 that contacts the bottom surface. The bottom 120 of the first knurled portion can contact the bottom 220 of the second knurled portion. Within a predetermined tolerance range, the length of the bottom 120 of the first knurled portion can be equal to the length of the bottom 220 of the second knurled portion.

[0043] The length of the bottom 120 of the first knurled portion can be referred to as the bottom length b of the first knurled portion. Within a predetermined tolerance range, the bottom length b of the first knurled portion can be equal to the bottom length d of the second knurled portion, which will be described later. The bottom length b of the first knurled portion can be greater than at least one of the bottom length g of the third knurled portion and the side length h of the insertion area, which will be described later, and can be less than at least one of the side length a of the first knurled portion, the side length c of the second knurled portion, the first side length e of the third knurled portion, and the second side length f of the third knurled portion, which will be described later.

[0044] Refer again Figure 5 The second knurled portion 200 may extend at an angle relative to the bottom surface. The second knurled portion 200 may be an isosceles triangle, with equal side lengths within a predetermined tolerance range.

[0045] The second knurled portion 200 can be configured as multiple second knurled portions. The second knurled portion 200 may include a second knurled portion side 210 and a second knurled portion bottom 220.

[0046] The second knurled side surface 210 can be one side surface of the second knurled portion 200. Multiple second knurled side surfaces 210 can be provided. Within a predetermined tolerance range, the lengths of the multiple second knurled side surfaces 210 can be equal.

[0047] The length of the second knurled side surface 210 can be referred to as the second knurled side surface length c. Within a predetermined tolerance range, the second knurled side surface length c can be equal to the second side surface length f of the third knurled part. The second knurled side surface length c can be greater than at least one of the third knurled bottom length g, the insertion area side surface length h, the first knurled bottom length b, and the second knurled bottom length d, which will be described later, and can be less than the first knurled side surface length a and the third knurled first side surface length e.

[0048] The bottom 220 of the second knurled portion can be the surface of the second knurled portion 200 that contacts the bottom surface. Within a predetermined tolerance range, the length of the bottom 220 of the second knurled portion can be equal to the length of the bottom 120 of the first knurled portion. The bottom 220 of the second knurled portion can contact the bottom 120 of the first knurled portion.

[0049] The length of the bottom 220 of the second knurled portion can be referred to as the bottom length d of the second knurled portion. Within a predetermined tolerance range, the bottom length d of the second knurled portion can be equal to the bottom length b of the first knurled portion. The bottom length d of the second knurled portion can be less than at least one of the side length h of the insertion area and the bottom length g of the third knurled portion, and can be less than at least one of the side length c of the second knurled portion, the second side length f of the third knurled portion, the side length a of the first knurled portion, and the first side length e of the third knurled portion, which will be described later.

[0050] Refer again Figure 6 The third knurled portion 300 may extend obliquely relative to the bottom surface. The third knurled portion 300 may be located between the first knurled portion 100 and the second knurled portion 200. The third knurled portion 300 may include a first side surface 310 of the third knurled portion, a second side surface 320 of the third knurled portion, and a bottom surface 330 of the third knurled portion.

[0051] The first side surface 310 of the third knurled portion can contact the side surface 110 of the first knurled portion. The inclination angle of the first side surface 310 of the third knurled portion relative to the bottom surface can be smaller than the inclination angle of the second side surface 320 of the third knurled portion relative to the bottom surface.

[0052] The length of the first side surface 310 of the third knurled portion can be referred to as the length e of the first side surface of the third knurled portion. Within a predetermined tolerance range, the length e of the first side surface of the third knurled portion can be equal to the length a of the side surface of the first knurled portion. The length e of the first side surface of the third knurled portion can be greater than the length b of the bottom of the first knurled portion, the length c of the side surface of the second knurled portion, the length d of the bottom of the second knurled portion, the length f of the second side surface of the third knurled portion, the length g of the bottom of the third knurled portion, and the length h of the side surface of the insertion area.

[0053] The second side surface 320 of the third knurled portion can contact the side surface 210 of the second knurled portion. The inclination angle of the second side surface 320 of the third knurled portion relative to the bottom surface can be greater than the inclination angle of the first side surface 310 of the third knurled portion relative to the bottom surface.

[0054] The length of the second side surface 320 of the third knurled portion can be referred to as the length f of the second side surface of the third knurled portion. Within a predetermined tolerance range, the length f of the second side surface of the third knurled portion can be equal to the side surface length c of the second knurled portion. The length f of the second side surface of the third knurled portion can be greater than at least one of the side surface length h of the insertion area, the bottom length g of the third knurled portion, the bottom length b of the first knurled portion, and the bottom length d of the second knurled portion, and can be less than the side surface length a of the first knurled portion and the first side surface length e of the third knurled portion.

[0055] The bottom 330 of the third knurled portion can be the surface of the third knurled portion 300 that contacts the bottom surface. Within a predetermined tolerance range, the length of the bottom 330 of the third knurled portion can be equal to the length of the side surface 410 of the insertion area, which will be described later. The bottom 330 of the third knurled portion can contact the insertion area 20.

[0056] The length of the bottom 330 of the third knurled portion can be referred to as the bottom length g of the third knurled portion. Within a predetermined tolerance range, the bottom length g of the third knurled portion can be equal to the side length h of the insertion area. The bottom length g of the third knurled portion can be less than at least one of the side length a of the first knurled portion, the bottom length b of the first knurled portion, the side length c of the second knurled portion, the bottom length d of the second knurled portion, the first side length e of the third knurled portion, and the second side length f of the third knurled portion.

[0057] Below, we will refer to Figure 8 and Figure 9 The arrangement of the raised knurled units 10 with the above configuration is described.

[0058] In any one of the plurality of raised knurled units 10, within a predetermined tolerance range, the height of the first knurled portion 100 raised from the bottom surface, the height of the second knurled portion 200 raised from the bottom surface, and the height of the third knurled portion 300 raised from the bottom surface can be equal.

[0059] Multiple first knurled portions 100 may be arranged opposite to each other. The vertex formed by the contact between the first knurled side faces 110 of one of the multiple first knurled portions 100 may contact the vertex formed by the contact between the first knurled side faces 110 of another of the multiple first knurled portions 100. The first knurled bottom 120 of one of the multiple first knurled portions 100 and the first knurled bottom 120 of another of the multiple first knurled portions 100 may be arranged in parallel.

[0060] Multiple second knurled portions 200 can be arranged opposite to each other. The vertex formed by the contact between the second knurled side surfaces 210 of one of the multiple second knurled portions 200 can contact the vertex formed by the contact between the second knurled side surfaces 210 of another of the multiple second knurled portions 200. The vertex formed by the contact between the second knurled side surfaces 210 of one of the multiple second knurled portions 200 can contact the vertex formed by the contact between the first knurled side surfaces 110 of one of the multiple first knurled portions 100. In other words, the vertex formed by the first knurled side surfaces 110 of one of the multiple first knurled portions 100, the vertex formed by the first knurled side surfaces 110 of another of the multiple first knurled portions 100, the second knurled side surfaces 210 of one of the multiple second knurled portions 200, and the vertex formed by the second knurled side surfaces 210 of another of the multiple second knurled portions 200 can contact each other. The second knurled bottom 220 of one of the plurality of second knurled portions 200 and the second knurled bottom 220 of another of the plurality of second knurled portions 200 can be arranged in parallel. The distance between the second knurled bottoms 220 of the second knurled portions 200 can be less than the length of the first knurled bottom 120.

[0061] The apex formed by the contact between the first knurled side surfaces 110 of one of the plurality of first knurled portions 100, the apex formed by the contact between the first knurled side surfaces 110 of another of the plurality of first knurled portions 100, the apex formed by the contact between the second knurled side surfaces 210 of one of the plurality of second knurled portions 200, the apex formed by the contact between the second knurled side surfaces 210 of another of the plurality of second knurled portions 200, the apex formed by the contact between the first side surfaces 310 of the plurality of third knurled portions, and the apex formed by the contact between the second side surfaces 320 of the plurality of third knurled portions can contact each other. The arrangement of the raised knurled units 10 having the above configuration when viewed from above will be described below.

[0062] When viewed from above, the third knurled portion 300 may not be visible. A plurality of first knurled portions 100 may be arranged opposite each other, and a plurality of second knurled portions 200 may be arranged opposite each other. One of the second knurled portions 200 may be disposed between the plurality of first knurled portions 100, and one of the first knurled portions 100 may be disposed between the plurality of second knurled portions 200.

[0063] When viewed from above, the end of the second knurled side 210 may contact the first knurled side 110 at a position that is either in the center or further inward from the center of the first knurled side 110.

[0064] Insertion areas 20 can be disposed among multiple raised knurled units 10. Insertion areas 20 can be non-raised and can contact the bottom surface. Insertion areas 20 can contact the third knurled portion 300. Multiple insertion areas 20 can be provided. Insertion areas 20 may include insertion area sidewalls 410.

[0065] The side of the insertion area 410 can contact the bottom of the third knurled portion 330. Multiple side insert areas 410 can be provided. Within a predetermined tolerance range, the lengths of the multiple side insert areas 410 can be equal. Within a predetermined tolerance range, the length of the side insert area 410 can be equal to the length of the bottom of the third knurled portion 330. The side insert area 410 can contact the bottom of the third knurled portion 330.

[0066] The length of the side surface 410 of the insertion area can be referred to as the side surface length h of the insertion area. Within a predetermined tolerance range, the side surface length h of the insertion area can be equal to the bottom length g of the third knurled portion. The side surface length h of the insertion area can be less than at least one of the side surface length a of the first knurled portion, the bottom length b of the first knurled portion, the side surface length c of the second knurled portion, the bottom length d of the second knurled portion, the first side surface length e of the third knurled portion, and the second side surface length f of the third knurled portion.

[0067] Within a predetermined tolerance range, the bottom length g of the third knurled portion and the side length h of the insertion area can be equal, and within a predetermined tolerance range, the bottom length b of the first knurled portion and the bottom length d of the second knurled portion can be equal. Within a predetermined tolerance range, the side length c of the second knurled portion and the second side length f of the third knurled portion can be equal, and within a predetermined tolerance range, the side length a of the first knurled portion and the first side length e of the third knurled portion can be equal. At least one of the bottom length g of the third knurled portion and the side length h of the insertion area can be less than at least one of the bottom length b of the first knurled portion and the bottom length d of the second knurled portion. At least one of the bottom length b of the first knurled portion and the bottom length d of the second knurled portion can be less than at least one of the side length c of the second knurled portion and the second side length f of the third knurled portion. At least one of the side length c of the second knurled portion and the second side length f of the third knurled portion can be less than the side length a of the first knurled portion and the first side length e of the third knurled portion.

[0068] The raised knurling unit 10 may include first raised knurling units 11 arranged to extend along a first direction and second raised knurling units 12 arranged to extend along a direction different from the first direction. Multiple first raised knurling units 11 and multiple second raised knurling units 12 may be provided. The insertion region 20 may be surrounded by the third knurled portions 300 of multiple first raised knurling units 11 arranged adjacent to each other and the third knurled portions 300 of multiple second raised knurling units 12 arranged adjacent to each other.

[0069] Multiple first knurled units 11 and multiple second knurled units 12 can be arranged alternately along a first direction. The first knurled units 11 and the second knurled units 12 arranged adjacent to each other in the first direction can be configured such that the bottom 120 of the first knurled portion of the first knurled unit 11 and the bottom 220 of the second knurled portion of the second knurled unit 12 are in contact with each other or face each other.

[0070] Multiple first knurled units 11 and multiple second knurled units 12 can be arranged alternately along a second direction. The first knurled units 11 and the second knurled units 12 arranged adjacent to each other in the second direction can be configured such that the bottom 120 of the first knurled portion of the second knurled unit 12 is in contact with or faces the bottom 220 of the second knurled portion of the first knurled unit 11.

[0071] The arrangement of the raised knurled unit 10 and the insertion area 20 having the above configuration will now be described.

[0072] Any one of the plurality of knurled units 10 can be disposed in an orientation different from that of an adjacent knurled unit 10. For example, any one of the plurality of knurled units 10 can be disposed in an orientation perpendicular to that of an adjacent knurled unit 10. The bottom 120 of the first knurled portion 100 disposed on one side of any one of the plurality of knurled units 10 can contact the bottom 220 of the second knurled portion 200 disposed on the other side of an adjacent knurled unit 10. The bottom 220 of the second knurled portion 200 disposed on one side of another knurled unit 10 can contact the bottom 120 of the first knurled portion 100 of another adjacent knurled unit 10 disposed on one side of another knurled unit 10.

[0073] The arrangement relationship between one raised knurled unit 10, another raised knurled unit 10 adjacent to the raised knurled unit 10, and yet another raised knurled unit 10 adjacent to the raised knurled unit 10 can be the same as the arrangement relationship of multiple raised knurled units 10 arranged along directions different from those defined by one side and the other side.

[0074] The effects of tire 1 with the above configuration will now be described.

[0075] Tire 1 can effectively reflect or absorb light from a light source. When tire 1 effectively reflects or absorbs light from a light source, the readability of printed characters can be improved. The first knurled portion 100, the second knurled portion 200, and the third knurled portion 300 are arranged in a repeating pattern, so that even with a simple structure, light from a light source can be effectively reflected or absorbed.

[0076] In addition to the above configuration, a tire 1 according to a second embodiment of this disclosure may also be provided. Reference will now be made to... Figures 10 to 13 A second embodiment of this disclosure will be described. In describing the second embodiment, the focus will be on the differences from the embodiments described above, while the same descriptions will be referenced to the embodiments described above.

[0077] refer to Figures 10 to 13 When viewed from above, the end of the second knurled side 210 can contact the first knurled side 110 at a position further outward than the center of the first knurled side 110. When viewed from above, in the raised knurled unit 10, the area of ​​the third knurled portion 300 can be smaller than the area of ​​the first knurled portion 100 but larger than the area of ​​the second knurled portion 200.

[0078] In addition to the above configuration, a tire 1 according to a third embodiment of this disclosure may also be provided. Reference will now be made to... Figure 14 and Figure 15 A third embodiment of this disclosure will be described. In describing the third embodiment, the focus will be on the differences from the embodiments described above, while the same descriptions will be referenced to the embodiments described above.

[0079] refer to Figure 14 and Figure 15 The length b of the bottom of the first knurled portion of the first knurled unit 11 and the length b of the bottom of the first knurled portion of the second knurled unit 12 can be different. The length d of the bottom of the second knurled portion of the first knurled unit 11 and the length d of the bottom of the second knurled portion of the second knurled unit 12 can be different. The bottom 120 of the first knurled portion of the first knurled unit 11 can contact the bottom 220 of the second knurled portion of the second knurled unit 12. The bottom 120 of the first knurled portion of the second knurled unit 12 can contact the bottom 220 of the second knurled portion of the first knurled unit 11. For example, the length b of the bottom of the first knurled portion of the first knurled unit 11 can be greater than the length b of the bottom of the first knurled portion of the second knurled unit 12. The length d of the bottom of the second knurled portion of the first knurled unit 11 can be less than the length d of the bottom of the second knurled portion of the second knurled unit 12.

[0080] The examples of this disclosure have been described above as specific embodiments, but these are merely examples, and this disclosure is not limited thereto. It should be interpreted with the broadest scope in accordance with the technical spirit disclosed in this specification. Those skilled in the art can combine / replace the disclosed embodiments to achieve layouts of forms not disclosed, but this will not depart from the scope of this disclosure. Furthermore, those skilled in the art can readily make changes or modifications to the disclosed embodiments based on this specification, and obviously, such changes or modifications also fall within the scope of this disclosure.

Claims

1. A raised knurled unit, comprising: The first knurled portion extends obliquely relative to the bottom surface of the raised knurled unit; as well as Multiple second knurled portions, each extending obliquely relative to the bottom surface. The first knurled portion includes the bottom of the first knurled portion. Each of the plurality of second knurled portions includes a bottom of the second knurled portion, and The distance between the bottoms of the second knurled portions in the plurality of second knurled portions is less than the length of the bottom of the first knurled portion.

2. The raised knurled unit according to claim 1, wherein, The first knurled part is configured as multiple first knurled parts. The length of the bottom of the second knurled portion is equal to the length of the bottom of the first knurled portion. Each of the first knurled portions also includes a plurality of first knurled side surfaces of equal length, and Each of the second knurled portions also includes a plurality of second knurled side sections of equal length.

3. The raised knurling unit according to claim 2 further includes: The third knurled portion is disposed between the first knurled portion and the second knurled portion, and extends obliquely relative to the bottom surface. The third knurled portion includes: The first side of the third knurled portion contacts the side of the first knurled portion; and The second side of the third knurled part contacts the side of the second knurled part. Wherein, the inclination angle of the first side of the third knurled portion relative to the bottom surface is smaller than the inclination angle of the second side of the third knurled portion relative to the bottom surface.

4. The raised knurled unit according to claim 3, wherein, The height at which the first knurled portion protrudes from the bottom surface, the height at which the second knurled portion protrudes from the bottom surface, and the height at which the third knurled portion protrudes from the bottom surface are all equal.

5. A tire, comprising: Multiple raised knurled units are formed on the sidewall of the tire. Each of the plurality of raised knurled units includes a first knurled portion, a second knurled portion, and a third knurled portion that protrude outward from the outer surface of the sidewall. The first knurled portion includes a side surface and a bottom surface. The second knurled portion includes a second knurled portion side and a second knurled portion bottom. The length of the bottom of the second knurled portion is equal to the length of the bottom of the first knurled portion. The third knurled portion includes: The first side of the third knurled part is in contact with the side of the first knurled part. The second side of the third knurled portion contacts the side of the second knurled portion; and The bottom of the third knurled section Wherein, the bottom of the first knurled portion and the bottom of the second knurled portion are in contact with each other, and Wherein, at least one of the plurality of raised knurled units is disposed in a direction offset from another raised knurled unit in an adjacent raised knurled unit.

6. The tire according to claim 5, further comprising an insertion region, in, The plurality of raised knurled units include a plurality of first raised knurled units arranged to extend along a first direction and a plurality of second raised knurled units arranged to extend along a direction different from the first direction. The insertion area is surrounded by the third knurled portion of the plurality of first raised knurled units arranged adjacent to each other and the third knurled portion of the plurality of second raised knurled units arranged adjacent to each other.

7. The tire according to claim 5, wherein, The plurality of raised knurled units include a plurality of first raised knurled units arranged to extend along a first direction and a plurality of second raised knurled units arranged to extend along a direction different from the first direction. The plurality of first raised knurled units and the plurality of second raised knurled units are arranged alternately along the first direction, and The first knurled unit and the second knurled unit, which are arranged adjacent to each other in the first direction, are configured such that the bottom of the first knurled portion of the first knurled unit and the bottom of the second knurled portion of the second knurled unit are in contact with each other or face each other.

8. The tire according to claim 7, wherein, The plurality of first raised knurled units and the plurality of second raised knurled units are arranged alternately along the second direction, and, The first knurled unit and the second knurled unit, which are arranged adjacent to each other in the second direction, are configured such that the bottom of the first knurled portion of the second knurled unit is in contact with or faces the bottom of the second knurled portion of the first knurled unit.

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