CN110614883B

CN110614883B - Tire pattern structure

Info

Publication number: CN110614883B
Application number: CN201810633284.6A
Authority: CN
Inventors: 罗才仁
Original assignee: Cheng Shin Rubber Ind Co Ltd
Current assignee: Cheng Shin Rubber Ind Co Ltd
Priority date: 2018-06-20
Filing date: 2018-06-20
Publication date: 2021-09-17
Anticipated expiration: 2038-06-20
Also published as: CN110614883A

Abstract

The invention mainly provides a tire pattern structure, which comprises a tread part pattern and a tire side part pattern, wherein the tire pattern comprises a plurality of patterns which are uniformly distributed along the periphery of a tire, the tread part pattern comprises two long-strip spoon-shaped pattern blocks which are symmetrical along the center of the tire tread and the axial direction of the tire, spoon-shaped pattern block groups cross the center of the tire tread, each spoon-shaped pattern block group corresponds to the tire tread in a left-right staggered mode along the center of the tire tread, each spoon-shaped pattern block group comprises an upper long-strip spoon-shaped pattern block and a lower long-strip spoon-shaped pattern block, the two spoon-shaped pattern blocks are connected with a handle part pattern block through a head part pattern block and connected with a stair-shaped tire side part pattern block at the turn of the tire shoulder, the upper tire side pattern block and the lower tire side pattern block comprise two convex quadrilateral pattern blocks and three concave pattern blocks, and the purpose of overcoming the inferior terrain and having excellent mud discharging and water discharging performances is achieved.

Description

Tire pattern structure

Technical Field

The invention relates to a tire pattern structure, in particular to a pattern structure design which is arranged on a tire tread and a tire bead and has the functions of improving the ground gripping force, discharging mud and draining water, and improving the controllability and the climbing capability.

Background

Generally, tires are mostly driven on roads, but in some countries and regions, road construction is not always possible to reach the destination to be reached, and due to weather factors, the original road pavement is damaged or submerged by earth and stone flow due to rain and humid environment, and because the tires are directly contacted with the ground, when the vehicle is driven in bad terrain such as shallow mud land, wet sand land, deep mud land, dry sand land, poor mudstone land, even wadding and the like, the tires need to have tire treads with excellent drainage, mud discharge and climbing (mud climbing and rock climbing) performances to overcome the bad terrain, and the controllability during driving can be effectively improved.

Tires for non-conventional roadways, which are intended to travel mainly on off-road areas, generally referred to as "off the road", include construction sites, factories, mines, etc., or off-road jungles, forests, deserts, riverbeds, beaches, etc., in order to travel on such muddy, slippery, soft terrain, the tire pattern must provide good handling, the drainage, mud removal, climbing properties of the tire must be provided by the arrangement of the blocks and the size and shape of the blocks, and the ratio of the area of the blocks to the contact patch area in the overall pattern, referred to as the "land ratio", affects the performance of the tire.

U.S. patent No. 7134467 entitled "low land ratio non-road tire" discloses a non-road tire having a plurality of center and shoulder projecting blocks circumferentially aligned in series and extending across the equatorial plane (equatorial plane) of the tire, each center projecting block being similar in shape and orientation to each circumferentially adjacent center projecting block, the tire having a set of blocks with a lower land ratio, the set of blocks having a land ratio of less than 40%.

Another U.S. patent No. 9783007 entitled "pneumatic tire for rough terrain", provides a pneumatic tire for rough terrain capable of achieving improved traction performance, the tire having a tread provided with a main body and a plurality of blocks projecting substantially outward in the radial direction from the main body, the central block group on the equator including: a first center block and a fourth center block, which comprise a single block of one large block; and a second center block and a third center block which include double blocks of two small blocks arranged in parallel in the axial direction, wherein an interval from the first center block to the second center block is larger than an interval from the second center block to the third center block, and the interval is smaller than an interval from the third center block to the fourth center block.

Disclosure of Invention

The above-mentioned structure is the tire pattern that provides special design, all apply to the road that unusually travels, great mud discharge channel has been designed on tire pattern in order to prevent earth from blockking, but also cause the travelling comfort to descend because of lower land ratio, single decorative block rigidity is not enough simultaneously, easily produce the phenomenon that the decorative block excessively warp in vehicle drive and braking process, influence the durability of decorative pattern, thereby lead to the decline of tire performance, consequently in order to solve the tire and travel durability and the not good problem of travelling comfort under the road state that unusually travels, then need design into the decorative pattern structure that can compromise each item performance and can further promote with the tire pattern.

The invention discloses a tire pattern structure, wherein the tire pattern comprises a tread portion pattern and a bead portion pattern, the whole tire pattern comprises a plurality of groups of tire patterns which are uniformly distributed on a tread and a bead along the periphery of the tire, the tread portion pattern comprises two strip-shaped spoon-shaped pattern blocks which are symmetrical along the center of the tread of the tire and the axial direction of the tire, the spoon-shaped pattern blocks cross the center of the tread of the tire, each spoon-shaped pattern block group corresponds to the center of the tread of the tire in a left-right staggered manner, each spoon-shaped pattern block comprises an upper strip-shaped spoon-shaped pattern block and a lower strip-shaped pattern block, the size and the shape of the head shape of the upper spoon-shaped pattern block and the head shape of the lower spoon-shaped pattern block in the center of the tread are the same, the difference is that the length of the handle portion pattern block of the lower spoon-shaped pattern block is shorter than that of the handle portion pattern block of the upper spoon-shaped pattern block, the two spoon-shaped pattern blocks are turned to the beads at the tire shoulders of the two sides and are respectively connected with the step-shaped pattern blocks comprising the upper and the bead portion of the lower bead, the upper and lower tread pattern blocks comprise two raised quadrilateral blocks, one end of the first raised quadrilateral block is connected with the tread pattern part through the first and second recessed blocks, the other end of the first raised quadrilateral block is connected with one end of the second raised quadrilateral block through the central recessed block, and the other end of the second raised quadrilateral block is connected to the tread through the gradually inclined arc surface recessed block.

In the overall pattern arrangement, the tread portion pattern width TW accounts for 40-50% of the overall tire pattern width W, the scoop-shaped pattern block comprises a head-portion block and a handle-portion block, the bead portion pattern width DW accounts for 40-60% of the scoop-shaped pattern block width, the head-portion block comprises a bridging recessed pattern, the bridging recessed pattern width BW accounts for 5-15% of the tread portion pattern width TW, the head-portion block is provided with two parallel sipes in the center, the handle-portion block is provided with a sipe in the center, the sipe length AW of the head-portion block sipe is 30-60% of the sipe length CW of the handle-portion block, the bead portion pattern width DW accounts for 80-120% of the adjacent sipe width EW, the groove depth A (the measurement position is the tire center line CL) of the overall tread portion pattern is 50-80% of the groove depth B (the measurement position is a half of the distance from the tire center line CL to the tire shoulder), the step difference C is 200-400% of the groove depth B, the head-portion pattern angle A of the scoop-shaped pattern block is 5 degrees to 15 degrees, the angle B is 0-5 degrees, the angle C is 5-20 degrees, the angle D is 20-40 degrees, the angle E is 85-95 degrees, the angle F is 10-30 degrees, the angle G is 5-25 degrees, the angle H is 0-15 degrees, the angle I is 0-15 degrees, the fillet R is 100-1500 mm, the angle ranges are the best effect, if the angle is smaller than the design value, the resistance is larger when the vehicle travels, especially the vehicle travels on sandy terrain, and if the angle is larger than the design value, the mud discharging effect is reduced.

In the other arrangement of the bead portion pattern, the length YW of the recessed blocks in the bead portion pattern accounts for 15 to 35% of the bead portion pattern width SW, the length ZW of the raised blocks in the bead portion pattern accounts for 90 to 110% of the length YW of the recessed blocks, the long-step difference LD between the tread portion pattern and the bead portion pattern in the shoulder-joining recessed pattern is 120 to 150% of the short-step difference SD, the width W2 in the tire axial direction of the first raised blocks in the bead portion pattern is 110 to 130% of the width W1 in the tire axial direction of the second recessed pattern, the width W3 in the tire axial direction of the central recessed block is 90 to 98% of the width W1 in the tire axial direction of the second recessed pattern, and the width W4 in the tire axial direction of the second raised blocks is 105 to 120% of the width W1 in the tire axial direction of the second recessed pattern.

The invention mainly aims to provide a tire pattern structure, wherein spoon-shaped tire blocks of a tread pattern of the tire pattern structure are tilted towards the advancing direction from a handle tire block to the center of a tread, so that the mud discharging direction is uniform and backward, and the advancing capability in a muddy ground is improved; the spoon-shaped pattern blocks are staggered in a herringbone mode, so that redundant soil or moisture can be discharged from two sides, the soil carrying amount of the tire during rotation is increased, the tire can move forwards in a sediment land more easily, the function of improving the drainage performance of the tire is achieved, and the advancing resistance can be reduced when a vehicle wades.

Further, the invention provides a tire pattern structure, and sipes among patterns of a tread part can adjust the elasticity of pattern blocks and improve the rigidity.

Furthermore, the invention provides a tire pattern structure, wherein tire shoulders on two sides are turned to tire bead patterns, and vertical section difference on the height of tire blocks of the tire bead patterns corresponds to left and right staggered design, so that the climbing capacity of the tire can be improved.

Furthermore, the invention provides a tire pattern structure, and a bridge among spoon-shaped pattern blocks is connected between the grooves, so that the rigidity of the tire blocks can be enhanced, soil can be discharged directionally, and the uncertainty of splashing is reduced.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a diagram showing a pattern development of a tire according to a preferred embodiment of the present invention.

FIG. 2 is a cross-sectional view of a tire tread pattern according to a preferred embodiment of the present invention.

FIG. 3 is a partial expanded view of a tire tread pattern according to a preferred embodiment of the present invention.

FIG. 4 is a partial perspective view of a tire tread pattern according to a preferred embodiment of the present invention.

FIG. 5 is a partial perspective elevation view of a tire tread pattern in accordance with a preferred embodiment of the present invention.

Description of the reference numerals

Tire pattern 10 bead pattern 30

Bead pattern 31 on tread portion pattern 20

Upper scoop pattern 21 and lower bead pattern 32

First protrusion 311321 of lower spoon-like pattern 22

Second protrusion 312322 of cephalic portion 211221

First recess 313323 of shank tire piece 212222

Head block sipe 213223 second recess 314324

Central depression 315325 of shank block siping 214224

Bridging 215225 cambered surface recess 316

A shoulder 40.

Detailed Description

The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1 to 3, a tire pattern structure provided by the present invention includes a tread portion pattern 20 and a bead portion pattern 30, the tire pattern 10 includes a plurality of pattern arrangements uniformly distributed along the circumference of a tire, and is characterized in that: the tread portion pattern 20 comprises two strip spoon-shaped pattern blocks of an upper spoon-shaped pattern 21 and a lower spoon-shaped pattern 22 which are symmetrical along the center of the tire tread and the axial direction of the tire, the strip spoon-shaped pattern blocks cross the center of the tire tread, each spoon-shaped pattern block group corresponds to the center of the tire tread in a left-right staggered mode, each spoon-shaped pattern block group comprises two strip spoon-shaped pattern blocks of an upper spoon-shaped pattern 21 and a lower spoon-shaped pattern 22,

head tire blocks

211 and 221 of the two spoon-shaped pattern blocks in the center of the tire tread are the same in shape, the length of a handle tire block 222 of the lower spoon-shaped pattern 22 is shorter than that of a handle tire block 212 of the upper spoon-shaped pattern 21, the upper spoon-shaped pattern 21 and the lower spoon-shaped pattern 22 are turned to a tire shoulder 40 to a tire bead, a tire bead portion pattern 30 formed by an upper tire bead pattern 31 and a lower tire bead pattern 32 which are respectively connected, the upper tire bead pattern 31 and the lower tire bead pattern 32 both comprise two raised quadrilateral blocks, the upper bead pattern 31 is formed by a first protrusion 311 having a first depression 313 and a second depression 314 for engagement with the tread portion pattern 20, and a central depression 315 for engagement with one end of a second protrusion 312 for engagement with one end of the second protrusion 312, and the second protrusion 312 having a second end for engagement with the bead with a gradually sloping arc depression 316 for engagement with the bead, and the other lower bead pattern 32 is formed by a first protrusion 321 having a first depression 323 and a second depression 324 for engagement with the tread portion pattern 20, and a central depression 325 for engagement with one end of a second protrusion 322 for engagement with the bead.

As shown in fig. 1, the tire pattern 10 of the present invention has a tread portion pattern 20 width TW of 40 to 50% of the overall tire pattern width W, and if the tread portion pattern 20 occupies too small area, the grip force is insufficient, and if the area is too large, the mud drainage effect is reduced.

As shown in fig. 1, each of the dimples of the bead pattern 30 of the tire pattern 10 of the present invention includes a

first dimple

313, 323, a

second dimple

314, 324, a

central dimple

315, 325 and an arc-shaped dimple 316, the length of each dimple accounts for 20-50% of the total width SW (TW-W/2) of the bead pattern 30, the remaining portion of the bead pattern 30 after subtracting the dimples, i.e., the total width of the

first protrusion

311, 321 and the

second protrusion

312, 322 accounts for 15-35% of SW, if the length of the dimple is too large, the bead protection is not good, and if the length of the dimple is too small, the tire is too heavy.

Referring to fig. 1 again, the area before bridging accounts for 20-50% of the area of the scoop-shaped pattern blocks, the area after bridging (the area of the handle-portion pattern blocks) accounts for 30-50% of the area of the scoop-shaped pattern blocks, the width BW of the bridging 215225 accounts for 5-15% of the total width TW, the proportion is too small, the mud and water discharging effect is poor, and the proportion is too large, which easily affects the controllability.

With reference to fig. 1, the tread pattern 20 includes

head blocks

211, 221 and

shank blocks

212, 222, two parallel

head block sipes

213, 223 are formed in the centers of the

head blocks

211, 221, one

shank block sipe

214, 224 is formed in the center of the

shank blocks

212, 222, the length AW of the

head block sipes

213, 223 is 30-60% of the length CW of the

shank block sipes

214, 224, and the elasticity and rigidity of the tread block can be adjusted.

Referring to fig. 1 again, the width DW of the bead pattern 30 is 80-120% of the width EW of the adjacent groove, too small is liable to affect the puncture-proof capability, and too large is liable to cause the tire to be too heavy; referring to fig. 2, the tread pattern 20 and the bead pattern 30 join the lower bead pattern 32 at the shoulder 40, and the difference LD between the long sections of the first concave 323 pattern is 120-150% of the difference SD between the short sections of the first concave 313 pattern of the upper bead pattern 31, which can improve the climbing ability of the tire.

Referring to fig. 2, a cross-sectional view of the tire pattern 10 of the present invention is shown, wherein the center of the tread is the groove depth a, the measurement position of the groove depth B is the middle position of the distance from the center of the tire to the shoulder, wherein the groove depth a of the tread portion pattern 20 is 50-80% of the groove depth B, the step C is 200-400% of the groove depth B, and the vertical step on the block height of the bead portion pattern corresponds to the left-right staggered design, so that the tire has an improved climbing capability, especially for rock climbing.

Referring to fig. 2, the width W2 of the first protrusion 321 block pattern of the bead portion pattern 30 in the tire axial direction is 110-130% of the width W1 of the second recess 324 block pattern in the tire axial direction, the width W3 of the central recess 325 block pattern in the tire axial direction is 90-98% of the width W1 of the second recess 324 block pattern in the tire axial direction, the width W4 of the second protrusion 322 block pattern in the tire axial direction is 105-120% of the width W1 of the second recess 324 block pattern in the tire axial direction, and the widths of the sections are stepped, so that the tire has a good puncture-proof effect during running.

Referring to fig. 3, the enlarged view of the lower spoon-shaped pattern 22 in the tread portion pattern 20 of the invention is shown, the spoon portion 212 pattern angle a is 5-15 °, the angle B is 0-5 °, the angle C is 5-20 °, the angle D is 20-40 °, the angle E is 85-95 °, the angle F is 10-30 °, the angle G is 5-25 °, the angle H is 0-15 °, the angle I is 0-15 °, the fillet R is 100-1500 mm, these angle ranges are the best effect, if the angle is smaller than the design value, the resistance is larger when the tire travels, especially in sandy terrain, the mud discharging effect is more obvious, if the angle is larger than the design value.

In summary, the tire pattern structure disclosed by the invention utilizes the pattern blocks of the tire patterns and the related mud discharge channels to be reasonably arranged, is composed of the tread portion patterns and the bead portion patterns, and is sequentially and correspondingly and alternately arranged along the periphery and the axial direction of the tire, so that the controllability and the climbing capability can be greatly improved, the rigidity and the support of the tire can be enhanced, the safety and the service life can be simultaneously improved, the non-road tire with high practicability is obtained, and the whole tire has industrial practicability and cost benefit.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a tire pattern structure, its characterized in that, this tire pattern include tread portion pattern and bead portion pattern, and the tire pattern includes a plurality of patterns that are evenly distributed around following the tire, its characterized in that: the tread pattern comprises two spoon-shaped pattern blocks formed by two strip spoon-shaped pattern blocks, each spoon-shaped pattern block group corresponds to each other in a left-right staggered mode along the center of the tire tread, each spoon-shaped pattern block group comprises an upper strip spoon-shaped pattern block and a lower strip spoon-shaped pattern block, the spoon shapes of the two spoon-shaped pattern blocks at the center of the tire tread are the same, the length of a handle part pattern block connected with the spoon parts of the lower spoon-shaped pattern blocks at the spoon parts is shorter than that of a handle part pattern block connected with the upper spoon-shaped pattern block at the spoon parts, the two spoon-shaped pattern blocks are turned to a tire shoulder to a tire bead and are respectively connected with a step-shaped tire bead part pattern comprising the upper tire bead pattern block and the lower tire bead pattern block, the upper tire bead pattern block and, the other end of the second raised quadrilateral block is connected with one end of the second raised quadrilateral block by a central sunken block, and the other end of the second raised quadrilateral block is connected to the tire side by a gradually inclined arc surface sunken block.

2. The tire pattern structure of claim 1, wherein said tread portion pattern width is 40 to 50% of the tire pattern width.

3. The tread pattern structure of claim 1 wherein the total length of said first and second depressed blocks, said center depressed block and said cambered surface depressed block in said bead portion pattern is 15 to 35% of the bead portion pattern width.

4. The tire pattern structure of claim 1 wherein said bead portion pattern has a total length of said first and second raised quadrilateral blocks of 15 to 35 percent of a width of said bead portion pattern.

5. The tread pattern structure of claim 1, wherein the bead portion pattern width is 40-60% of the scoop block width.

6. The tread pattern structure of claim 5, wherein said scoop-like blocks comprise a bridge-cut pattern having a width of 5 to 15% of the pattern width of the tread portion.

7. The tread pattern structure of claim 1 wherein said scoop blocks comprise a head block having two parallel sipes in the center and a shank block having a sipe in the center, the sipe length of the head block being 30-60% of the sipe length of the shank block.

8. The tire pattern structure of claim 3 or claim 4, wherein the total length of said first and second concave blocks, said central concave block and said cambered concave block of said bead portion pattern is 90 to 110% of the total length of said first convex quadrilateral block and said second convex quadrilateral block.

9. The tire pattern structure of claim 5, wherein said tread portion pattern has a tread portion pattern width of 80 to 120% of an adjacent groove width.

10. The tire pattern structure of claim 1, wherein said tread portion pattern has a groove depth a of 50 to 80% of a groove depth B.

11. The tire pattern structure of claim 1, wherein the long step difference of the tread pattern and the bead pattern in the shoulder-engaging recessed pattern is 120 to 150% of the short step difference.

12. The tire pattern structure of claim 1, wherein the width of the bead pattern first convex block in the tire axial direction is 110 to 130% of the width of the second concave pattern in the tire axial direction, the width of the center concave block in the tire axial direction is 90 to 98% of the width of the second concave pattern in the tire axial direction, and the width of the second convex block in the tire axial direction is 105 to 120% of the width of the second concave pattern in the tire axial direction.

13. The tire pattern structure of claim 7, wherein said tread portion pattern area is 25 to 40% of the total tire pattern area, said head block area is 20 to 50% of the scoop block area in the tread portion pattern, and said shank block area is 30 to 50% of the scoop block area.