Tire having coupling-type 3D cut portion

Abstract

An embodiment of the present invention provides a tire capable of inducing locking of a band set and preventing collapse of a block during driving and braking of the tire, by arranging a coupling-type band set having a mutually engaging structure, on the inner wall of a cut portion. In the tire having a coupling-type 3D cut portion according to an embodiment of the present invention, the cut portion comprises a single protruding body which protrudes convexly from the inner wall surface of the cut portion; and a combined protrusion portion provided with a plurality of combined protruding bodies which protrude from the inner wall surface of the cut portion.

Description

Tire having a combined 3D cut section

[0001] The present invention relates to a tire having a combined 3D cut section, and more specifically, to a tire having a combined band set having a configuration that interlocks with one another placed on the inner wall of the cut section to induce locking of the band set during the driving operation of the tire and prevent collapse of the block.

[0002]

[0003] The tread of a pneumatic tire that contacts the road surface forms a specific pattern to provide grip, drainage, braking power, and noise dispersion. Depending on the shape of the pattern, it has a significant impact on handling performance on dry, wet, and snowy roads, and this is a major factor in tire development.

[0004] Meanwhile, kerfs are thin, deep grooves primarily cut transversely into the tread blocks. They function to equalize the contact surface, improve grip, provide cushioning for a comfortable ride, and increase driving and braking forces by promoting drainage. In the case of conventional kerfs, there is no constraint in the direction perpendicular to the road surface, resulting in low rigidity of the tread section, which leads to performance degradation during driving or braking.

[0005] Korean Registered Patent No. 10-1739506 (Title of Invention: Tire Pattern Maximizing Noise, Snow, and Wet Performance through Application of 3D Zipper Slot and Cuff Blade) discloses a first groove formed in a tread block; a second groove formed on one side of the first groove; wherein the first groove has a zigzag shape and includes an inclined surface formed to slope from the upper surface to the lower surface of the tread block, the second groove has a straight shape before tire wear and includes a zigzag shape exposed as the tire wears, and the first groove and the second groove are formed alternately.

[0006] However, such conventional technology may have the problem of the block collapsing. Therefore, there is a need for a tire that implements interlocking of the cut section when forming the tire by forming a combined band-type 3D cut section blade that is formed to protrude from both walls of the blade to prevent the block from collapsing.

[0007] <Prior Art Literature>

[0008] Republic of Korea Registered Patent No. 10-1739506

[0009]

[0010] The objective of the present invention to solve the above-mentioned problems is to induce locking within a tire cut section, such as a cuff, to increase the frictional force generated by slipping and reduce the loss of contact rate.

[0011] In addition, the objective of the present invention is to prevent the collapse of the block, thereby preventing a decrease in tire performance during driving or braking.

[0012] The technical problems that the present invention aims to solve are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art to which the present invention belongs from the description below.

[0013]

[0014] The configuration of the present invention for achieving the above-mentioned purpose comprises a tire having a tread and an incision formed in the tread, wherein the incision comprises a single protrusion formed convexly protruding from the inner wall surface of the incision and a combination protrusion comprising a plurality of combination protrusions formed protruding from the inner wall surface of the incision, and wherein one single protrusion and one combination protrusion are formed in corresponding shapes and positioned adjacent to each other.

[0015] In an embodiment of the present invention, the single protrusion and the combined protrusion form a band set, and each of the plurality of band sets may be formed spaced apart from each other.

[0016] In an embodiment of the present invention, the single protrusion and the combined protrusion form a band set, and each of the plurality of band sets may be formed spaced apart from each other.

[0017] In an embodiment of the present invention, the positions of a single protrusion and a combined protrusion of one band set among a plurality of band sets are opposite to the positions of a single protrusion and a combined protrusion of another band set, and the one band set and the other band set may be arranged alternately.

[0018] In an embodiment of the present invention, the cross-sectional shape of the single protrusion with respect to the depth (D) direction of the incision may be formed as a shape including any one selected from a semicircle and a polygon.

[0019] In an embodiment of the present invention, the outer end height (H) of the band set may be formed to be 10 to 90% of the incision depth (D).

[0020]

[0021] The effect of the present invention according to the above configuration is that it induces locking within the cut portion of a tire, such as a cuff, thereby increasing the frictional force generated by slipping and reducing the loss of contact rate.

[0022] In addition, the effect of the present invention is to prevent the collapse of the block, thereby preventing a decrease in tire performance during driving or braking.

[0023] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description of the invention or the claims.

[0024]

[0025] FIG. 1 is a side view of a band set in which a single protrusion is formed in a circular shape according to one embodiment of the present invention.

[0026] FIG. 2 is a side view of a band set in which a single protrusion is formed in a polygonal shape according to one embodiment of the present invention.

[0027] FIG. 3 is a drawing of the formation of a band set according to one embodiment of the present invention.

[0028] FIG. 4 is a front view of a blade according to one embodiment of the present invention.

[0029] FIG. 5 is a perspective view of a blade and an incision portion according to one embodiment of the present invention.

[0030] FIG. 6 is a schematic diagram of an incision and a band set according to one embodiment of the present invention.

[0031] FIG. 7 is a perspective view showing the interlocking of an incision portion according to one embodiment of the present invention.

[0032] FIG. 8 is a drawing showing the contact area of ​​a tire according to one embodiment of the present invention.

[0033] FIG. 9 is a graph showing the road surface contact rate of a tire according to the cross-sectional shape of a band set according to one embodiment of the present invention.

[0034]

[0035] The most preferred embodiment of the present invention is a tire having a tread and an incision formed in the tread, wherein the incision comprises a single protrusion formed convexly protruding from the inner wall surface of the incision and a combination protrusion comprising a plurality of combination protrusions formed protruding from the inner wall surface of the incision, and wherein one single protrusion and one combination protrusion are formed in corresponding shapes and are positioned adjacent to each other.

[0036]

[0037] The present invention will be described below with reference to the attached drawings. However, the present invention may be implemented in various different forms and is therefore not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification have been given similar reference numerals.

[0038] Throughout the specification, when it is stated that a part is "connected (connected, in contact, combined)" with another part, this includes not only cases where they are "directly connected," but also cases where they are "indirectly connected" with other members interposed between them. Furthermore, when it is stated that a part "includes" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but rather allows for the inclusion of additional components.

[0039] The terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0040] Hereinafter, the present invention will be described in detail with reference to the attached drawings.

[0041]

[0042] FIG. 1 is a side view of a band set in which a single protrusion (210) is formed in a circular shape according to an embodiment of the present invention, FIG. 2 is a side view of a band set in which a single protrusion (210) is formed in a polygonal shape according to an embodiment of the present invention, FIG. 3 is a drawing of the formation of a band set according to an embodiment of the present invention, and FIG. 4 is a front view of a blade (100) according to an embodiment of the present invention.

[0043] Additionally, FIG. 5 is a perspective view of a blade (100) and an incision (200) according to one embodiment of the present invention, and FIG. 6 is a schematic view of an incision (200) and a band set according to one embodiment of the present invention.

[0044] Also, FIG. 7 is a perspective view showing the interlocking of the cut portion (200) according to one embodiment of the present invention, FIG. 8 is a drawing showing the contact area of ​​the tire according to one embodiment of the present invention, and FIG. 9 is a graph showing the road surface contact rate of the tire according to the cross-sectional shape of the band set according to one embodiment of the present invention.

[0045]

[0046] As shown in FIGS. 1 to 5, in a tire having a tread and an incision formed in the tread, the incision (200) may include a combination protrusion having a single protrusion (210) formed convexly protruding from the inner wall surface of the incision (200) and a combination protrusion (221, 222) formed protruding from the inner wall surface of the incision (200).

[0047] Here, the cut portion (200) may include a cuff (or sipe) formed in the block (10) or rib, an auxiliary groove formed on the tread in addition to the main groove, etc. For ease of understanding, the cut portion (200) formed in the block (10) will be described below.

[0048] A single protrusion (210) and a combined protrusion may be formed with corresponding shapes and positioned adjacent to each other, and the single protrusion (210) and the combined protrusion may form a band set, and each of the multiple band sets may be formed spaced apart from each other.

[0049]

[0050] In Figure 1, the top and bottom of the band set are indicated by horizontal dotted lines.

[0051] As shown in FIG. 1, the height (H) of the outer end of the band set, which is the length from the top of the band set to the bottom of the band set, can be formed to be 10 to 90% of the depth (D) of the incision (200). The outer end of the band set is the end of the band set facing the opening of the incision.

[0052] Here, when multiple band sets are formed in the depth (D) direction of the incision (200), the size (height) of the band sets can be gradually reduced.

[0053] Accordingly, an upper space of the cut portion (200) can be formed from the surface of the block (10) to the top of the band set. As a result, the tread block (10) can be provided with a drainage effect on the wet road surface, so that the tire can be provided with driving performance on a wet road surface such as snow or rain.

[0054] At least one band set formed by a combination of a pair of a single protrusion (210) and a combination protrusion may be formed inside the cut portion (200), and when force is applied to the block (10), the single protrusion (210) and the combination protrusion, which are protrusions formed in the cut portion (200), come into contact with each other, thereby increasing the rigidity, contact force, and friction force of the block (10).

[0055] This prevents the block from collapsing, thereby increasing the simultaneous rescue performance. Additionally, each protrusion is formed alternately so that the force can be distributed to the protrusions (210, 221, 222), and by arranging them alternately, the deviation in characteristics according to direction can be reduced.

[0056] A single protrusion (210) may be formed in a convex shape on one of the two inner wall surfaces inside the cut portion (200), and a combination protrusion is formed at a position corresponding to the position of the single protrusion (210). Such a combination protrusion may include a first combination protrusion (221) formed in a shape corresponding to one part of the single protrusion (210), and a second combination protrusion (222) formed in a shape corresponding to another part of the single protrusion (210). At this time, a plurality of combination protrusions (221, 222) may be formed according to the shape of the single protrusion (210).

[0057]

[0058] In one example of the present invention, each of a plurality of band sets has the same shape, and each of a plurality of band sets may be spaced apart from each other.

[0059] In this case, a single protrusion (210) included in each of the multiple band sets may be formed on one side of the inner wall of the cut portion (200), and a combined protrusion may be formed on the other side of the inner wall of the cut portion (200).

[0060] Additionally, each of the plurality of band sets may be spaced apart from one another along the length direction of the incision (200). Here, each of the plurality of band sets may be arranged in the depth (D) direction of the incision (200), or may be arranged to form rows and columns along the length direction and the depth (D) direction of the incision (200), respectively.

[0061]

[0062] In another embodiment of the present invention, the position of a single protrusion (210) and a combined protrusion of one of the band sets is opposite to the position of a single protrusion (210) and a combined protrusion of another band set, and the one band set and the other band set may be arranged alternately.

[0063] In such a case, a single protrusion (210) included in one band set may be formed on one inner wall surface of the incision (200), and a combined protrusion included in one band set may be formed on the other inner wall surface of the incision (200). Additionally, another single protrusion (210) included in another band set may be formed on the other inner wall surface of the incision (200), and another combined protrusion included in another band set may be formed on one inner wall surface of the incision (200).

[0064] That is, in one embodiment as described above, the shape of one band set rotated 180 degrees around the depth direction axis of the incision (200) may be the shape of another band set.

[0065] Additionally, one band set and another band set may be arranged in multiple numbers along the length direction of the incision (200), and each band set may be arranged alternately, that is, one band set is placed after another band set, and then one band set is placed after another band set.

[0066] Here, each of the multiple band sets may be arranged in the depth (D) direction of the incision (200), or may be arranged to form rows and columns along the length direction and the depth (D) direction of the incision (200), respectively. That is, one band set and another band set may be arranged alternately in the depth (D) direction of the incision (200).

[0067]

[0068] As shown in FIGS. 1 and 3, the cross-sectional shape of the single protrusion (210) in the direction of the depth (D) of the cut portion may be formed in a shape including either a semicircle or a polygon selected from. Preferably, the cross-sectional shape of the single protrusion (210) in the tire circumferential direction may be formed in an arc shape that is a semicircle.

[0069] At this time, the single protrusion (210) is R from the origin (O), as seen in FIG. 3(a). i In a virtual circle having a radius, a single protrusion (210) can be formed in a convex shape in an area where the cross-section of the virtual circle and the cut portion (200) overlap.

[0070] That is, as shown in FIG. 3(b), a single protrusion (210) can be formed as an arcuate column-shaped protrusion on one or the other inner wall surface of the cut portion (200), and the arcuate cross-section can be formed as A, and the single protrusion (210) can be formed as a column shape extended by L in the longitudinal direction of the cut portion (200). The height of the single protrusion (210) can be formed as h, and h can be formed as 5% to 95% of the thickness (t) of the cut portion (200).

[0071] As seen in FIG. 3(c), the combination protrusion (220) may include a first combination protrusion (221) and a second combination protrusion (222). The first combination protrusion (221) may include a first corresponding protrusion (221a) formed in a shape corresponding to at least a portion of the single protrusion (210), and a first extension protrusion (221b) formed extending upward from the first corresponding protrusion (221a). The first combination protrusion (221) and the second combination protrusion (222) may be formed in the same shape.

[0072] The first combination protrusion (221) can be formed in a shape that is 180 degrees symmetrical with respect to the length direction of the second combination protrusion (222) and the cut portion (200).

[0073] The first corresponding protrusion (221a) may be formed in a triangular shape with a curved surface having a predetermined radius of curvature on the diagonal, and the first corresponding protrusion (221a) may be formed in a shape corresponding to the single protrusion (210). That is, it may be formed in a right triangle shape having a curved portion, and the first extended protrusion (221b) may be formed in a rectangular shape. The curved portion of the first corresponding protrusion (221a) may be formed in a shape corresponding to at least a part of the single protrusion (210).

[0074] The second combination protrusion (222) may be formed in a triangular shape formed as a curved surface having a predetermined radius of curvature on the diagonal, and may include a second corresponding protrusion (222a) formed in a shape corresponding to at least a part of the single protrusion (210), and a second extension protrusion (222b) formed extending downward from the second corresponding protrusion (222a) and having a rectangular cross-sectional shape.

[0075] As a result, when the tire comes into contact with the ground, a locking action is performed in which a part of the single protrusion (210) and the first combined protrusion (221) come into contact and a part of the single protrusion (210) and the second combined protrusion (222) come into contact and a locking action is performed, thereby preventing the block (10) from collapsing.

[0076]

[0077] Specifically, the first combined protrusion (221) and the second combined protrusion (222) may be formed in the shape of a protrusion on one side or the other side surface of the cut portion (200), and R forming a single protrusion (210). i R from the same origin (O) as the circle having radius o The first combined protrusion (221) and the second combined protrusion (222) may be formed in a shape that protrudes to a position corresponding to the outer surface of a virtual circle having a radius and the single protrusion (210) of the cut portion (200).

[0078] R iA circle having a radius can be formed to protrude outwardly by a predetermined distance from the inner wall surface of one side of the incision (200), so that the first combined protrusion (221) and the second combined protrusion (222) can be formed separated by a predetermined distance, and a space (223) between the first combined protrusion (221) and the second combined protrusion (222) can be formed. At this time, R o is R i It can be formed larger, and R o -R i It can be formed to be smaller than t / 2.

[0079] The interspace (223) can be formed as a space between one side inner wall surface of the cut section (200) and a single protrusion (210), and when force is applied to the block (10), the single protrusion (210) and the combined protrusion (221, 222) come into contact in the cut section (200), thereby inducing locking in the cut section (200), so that when tire slip occurs, the frictional force between the ground and the tire can be increased and the road surface contact rate can be increased.

[0080] As described above, when the interspace (223) selectively contacts the single protrusion (210), the combined protrusion (221, 222) acts as a support for the single protrusion (210), thereby easily preventing twisting of the block (10) and collapse of the block (10).

[0081] FIG. 2(a) is a side cross-sectional view of an incision (200) in which a single protrusion (210) is formed in a triangular shape, FIG. 2(b) is a side cross-sectional view of an incision (200) in which a single protrusion (210) is formed in a square shape, and FIG. 2(c) is a side cross-sectional view of an incision (200) in which a single protrusion (210) is formed in a pentagonal shape.

[0082] As seen in FIG. 2(a), the single protrusion (210) may be formed in a triangular shape with a cross section extending from one side of the cut portion (200) to the other side; as seen in FIG. 2(b), the single protrusion (210) may be formed in a square shape with a cross section; and as seen in FIG. 2(c), the single protrusion (210) may be formed in a pentagonal shape with a cross section.

[0083]

[0084] The blade (100) is coupled to a mold, and an incision (200) can be formed by the blade (100) during tire processing. The blade (100) is coupled to a vulcanization mold, and during the vulcanization process, an incision (200) can be formed in the lateral direction of the tire.

[0085] As shown in FIG. 5, a single groove (111) may be formed on one side (110) of the blade, and a first combination groove (121) and a second combination groove (122) may be formed on the other side (120) of the blade.

[0086] In FIG. 5, for ease of understanding, one side (110) and the other side (120) of the blade are shown using two blades (100), but in practice, one blade (100) can be used to form one incision (200).

[0087] At this time, as shown in FIG. 5, for the formation of a band set, a first combination groove (121), a second combination groove (122), and a single groove (111) formed on both sides of a part of a blade (100) may be formed adjacent to each other to form a single groove set. That is, a single groove set may include a first combination groove (121), a second combination groove (122), and a single groove (111).

[0088] To this end, as shown in FIGS. 4 and 5, a plurality of groove sets may be formed at a predetermined distance apart along the longitudinal direction of the plate-shaped blade (100). At this time, as shown in FIG. 4, the ends of the blade (100) may be formed in a plate shape without grooves, and the length of the ends may be formed as Z1.

[0089] At this time, the blade (100) is formed in a plate-shaped frame shape that does not have grooves on the upper and lower parts of the blade (100), so that when the blade (100) is inserted into the vulcanization mold, the effect of facilitating mold insertion and securing the block exterior can be expected.

[0090] In the blade (100), one set of grooves and another set of grooves may be formed spaced apart with the same shape, and in another embodiment, one set of grooves may be formed with a shape rotated 180 degrees in the lateral direction of the tire from the shape of the other set of grooves and arranged alternately, that is, alternately.

[0091] As shown in FIG. 5, an incision (200) can be formed between one block (10) and another block (10) by a blade (100), and the incision (200) can form a band set during the vulcanization process by the groove set of the blade (100).

[0092] Specifically, a single protrusion (210) may be formed by a single groove (111), and a first combined protrusion (221) and a second combined protrusion (222) may be formed by a first combined groove (121) and a second combined groove (102). The details regarding each groove formed in the blade (100) may be applied to the details regarding the single protrusion (210) and the combined protrusion (220) formed thereby.

[0093]

[0094] In FIGS. 6 to 9, FIG. 6(a) is a perspective view showing a block having a cut portion vulcanized by the blade of Example 1, FIG. 6(b) is a perspective view showing a block having a square protrusion formed on one side inner wall surface of the cut portion (200) of Example 2, and FIG. 6(c) is a perspective view showing a block (10) having a cut portion (200) vulcanized by the blade (100) of the present invention of Example 3.

[0095] At this time, the outermost shape (square) and size of the protrusion of Example 2 and the outermost shape (square) and size of the band set of the present invention of Example 3 may be the same.

[0096] FIG. 7(a) is a perspective view showing the contact area at the cut portion of Example 1, and FIG. 7(b) is a perspective view showing the contact area at the cut portion (200) of the present invention of Example 3 of Table 1 below.

[0097] As shown in FIG. 7 (a), in the case of Example 1, there is no constraint in the direction perpendicular to the road surface, so the rigidity of the tread portion is low and the shape of the block (10) collapses, so it cannot be interlocked at the cut portion (200) of Example 1, and the contact area may be reduced.

[0098] On the other hand, in the case of the present invention as Example 3, as shown in FIG. 7(b), the part marked in blue is the location where contact occurs, and interlocking is achieved, and the effect of improving the rigidity of the block (10) can be expected. As a result, the block (10) is restrained in a direction perpendicular to the road surface, so that the block (10) can be prevented from collapsing.

[0099] FIG. 8(a) is a drawing showing the contact area in the block (10) of Example 1, and FIG. 8(b) is a drawing showing the contact area in the block (10) of the present invention of Example 3. As can be seen in FIG. 8, the road surface contact rate is increased in the case of the tire equipped with the cut portion (200) of Example 3 compared to the case of Example 1.

[0100]

[0101] (Table 1. Tire friction and road surface contact rate according to the shape of the cut section (200))

[0102] As shown in Table 1, when Example 1 is the reference, the maximum friction of the tire of Example 2 increased by 0.4% compared to Example 1, and the road surface grip rate increased by 1.7% compared to Example 1. The maximum friction of Example 3 increased by 1.3% compared to Example 1, and the road surface grip rate increased by 5.6% compared to Example 1.

[0103] As a result, it can be seen that the road surface contact rate and maximum friction force increase when protrusions are formed compared to a general cut section without protrusions, and in the case of the tire of Example 3 compared to the tire of Example 2, multiple protrusions selectively contact each other and adjust the partial thickness and shape of the cut section (200), and during the vulcanization process, the shape of the cut section (200) can be adjusted so that locking within the cut section (200) is induced, thereby increasing the maximum road surface contact rate and friction force, which increases the contact rate of the tire and prevents the collapse of the block (10), thereby preventing a decrease in performance during rescue.

[0104] As shown in Fig. 9, in a graph where the x-axis represents sliding distance and the y-axis represents the road surface contact rate, in the case of Example 1, the road surface contact rate is 100% when the sliding distance is 0, and it can be seen that the road surface contact rate decreases until the sliding distance becomes 2mm and then is maintained at approximately 45%; in the case of Example 2, the road surface contact rate is 100% when the sliding distance is 0, and it can be seen that the road surface contact rate decreases until the sliding distance becomes 2mm and then is maintained at approximately 46%; and in the case of Example 3, the road surface contact rate is 100% when the sliding distance is 0, and it can be seen that the road surface contact rate decreases until the sliding distance becomes 2mm and then is maintained at approximately 48%.

[0105] That is, in the case of Examples 1 and 2, compared to the present invention, Example 3, the maintenance rate of the road surface contact rate is lower, and it can be seen that the loss of contact rate increases. That is, the blade (100) for the cut portion (200) of Example 3 is coupled to a vulcanization mold and forms a plurality of band sets on the block (10) after the vulcanization process, thereby locking the block (10) when the tire is driven so that the bending of the block (10) is restricted and the structure of the tire is maintained, thereby maintaining the frictional force and increasing the road surface contact rate, and it can be seen that the loss of contact rate is reduced as the road surface contact rate is maintained.

[0106]

[0107] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical spirit or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0108] The scope of the present invention is defined by the claims set forth below, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the present invention.

[0109] <Explanation of Symbols>

[0110] 10 : Block

[0111] 100: Blade

[0112] 110: One side of the blade

[0113] 120: The other side of the blade

[0114] 111 : Single home

[0115] 121 : 1st Association Home

[0116] 122 : 2nd Association Home

[0117] 200 : Incision

[0118] 210 : Single protrusion

[0119] 220 : Combined protrusion

[0120] 221 : 1st combination protrusion

[0121] 221a : First corresponding protrusion

[0122] 221b : First extension protrusion

[0123] 222 : 2nd combination protrusion

[0124] 222a : Second corresponding protrusion

[0125] 222b: Second extension protrusion

[0126] 223 : Intermediate space

Claims

1. A tire having a tread and an incision formed in the tread, The above-mentioned incision comprises a single protrusion formed to protrude convexly on the inner wall surface of the incision, and a combination protrusion comprising a plurality of combination protrusions formed to protrude on the inner wall surface of the incision. A tire having a combined 3D cut section characterized in that one single protrusion and one combined protrusion are formed in corresponding shapes and positioned adjacent to each other.

2. In Claim 1, The above single protrusion and the above combined protrusion form a band set, and A tire having a combined 3D cut section characterized in that each of the plurality of band sets is formed spaced apart from one another.

3. In Claim 2, Each of the above plurality of band sets has the same shape, and A tire having a combined 3D cut section characterized in that each of the above plurality of band sets is spaced apart from one another.

4. In Claim 2, Compared to the position of a single protrusion and a combined protrusion of one of the aforementioned multiple band sets, the position of a single protrusion and a combined protrusion of another band set is opposite, and A tire having a combined 3D cut section characterized in that the above-mentioned one band set and the above-mentioned other band set are arranged alternately with each other.

5. In Claim 1, A tire having a combined 3D cut section, characterized in that the cross-sectional shape of the single protrusion in the depth (D) direction of the cut section is formed as a shape including any one selected from a semicircle and a polygon.

6. In Claim 2, A tire having a combined 3D cut section characterized in that the outer end height (H) of the above band set is formed to be 10 to 90% of the depth (D) of the above cut section.

Images