A kind of anti-deviation spin snow tire pattern suitable for ice and snow road surface

Abstract

The utility model discloses an anti-deviation fishtailing snow tire pattern suitable for ice and snow road surface, which comprises a tire pattern, and the tire pattern comprises pattern grooves and pattern blocks arranged along the circumferential direction of the tire tread. The pattern grooves I are located at the center position in the width direction of the tire, and the pattern blocks I, the pattern grooves II, the pattern blocks II, the pattern grooves III, the pattern blocks III, the pattern grooves IV, the pattern blocks IV, the pattern grooves V and the pattern blocks V are sequentially arranged from the center to the directions of the two tire shoulders. The pattern blocks adjacent to each other in the same circumferential direction are connected through reinforcing ribs. The pattern grooves II and the pattern grooves IV are periodic triangular wave pattern grooves, and the included angle α of the triangular wave is 157°-160°. The main grooves of the pattern grooves are designed as four periodic triangular wave pattern groove slots. When the tire is subjected to a lateral force, the tire pattern has stronger grip force. This design provides the tire with stronger lateral rigidity of the tire pattern, reduces the lateral sliding distance of the tire, and solves the problems of turning deviation and fishtailing of the vehicle in use of the straight groove snow tire pattern.

Description

Technical Field

[0001] This utility model belongs to the field of tire tread technology, specifically relating to an anti-deviation and tail-wagging snow tire tread suitable for icy and snowy roads. Background Technology

[0002] Japan's terrain is predominantly mountainous and hilly, accounting for approximately 71% of its total land area. The northern region experiences frequent snow and ice throughout the year with heavy snowfall, necessitating specific tire usage guidelines. Maximizing tire traction, braking force, and steering force while maintaining maneuverability on icy and snowy roads has always been the development goal of snow tires, as vehicles on icy and snowy surfaces are prone to slipping and skidding, resulting in extremely dangerous fishtailing.

[0003] Chinese Patent Application No. 202411342951.7 discloses a winter and summer dual-use nailless snow tire tread pattern suitable for icy and snowy roads. The edges of tread blocks I and II near the wider tread groove (i.e., tread groove II) are curved, and the edges near the narrower tread groove (i.e., tread groove I and tread groove III) are broken lines. The edge of tread block III near the wider tread groove (i.e., tread groove IV) is broken line, and the edge near the narrower tread groove (i.e., tread groove III) is broken line. The edge of tread block IV near the wider tread groove (i.e., tread groove IV) is broken line, and the edge near the narrower tread groove (i.e., tread groove V) is straight line. Although the edges of the tread blocks are zigzag lines, those skilled in the art believe that tread grooves I, II, III, IV, and V are all straight grooves. Straight grooves can provide good driving force for the vehicle, but the vehicle may slip and skid on icy or snowy roads, causing fishtailing. In addition, there are horizontal lateral grooves between circumferentially adjacent tread blocks V. Among two adjacent tread blocks V, one has a horizontal lateral groove and the other has a variable-angle lateral groove. The snow removal function needs to be improved, as does the friction when in contact with icy or snowy roads, and the tire's grip and driving force also need to be improved. Summary of the Invention

[0004] To address the problem of vehicles skidding and fishtailing on icy and snowy roads, this invention provides an anti-skid and fishtailing snow tire tread pattern suitable for icy and snowy roads.

[0005] The purpose of this utility model is achieved in the following way: a snow tire tread pattern suitable for icy and snowy roads that resists drift and tail-wagging, including a tread pattern, the tread pattern including tread grooves and tread blocks arranged along the circumference of the tire tread, tread groove I is located at the center of the tire width, and tread blocks I, tread groove II, tread groove III, tread groove IV, tread block IV, tread groove V and tread block V are arranged sequentially from the center to the two tire shoulders. Adjacent tread blocks in the same circumference are connected by reinforcing ribs. Tread grooves II and IV are periodic triangular wave tread grooves, and the included angle α of the triangular waves is 157°-160°.

[0006] Patterned blocks I, II, III, and IV are each provided with a transverse groove I, transverse groove II, transverse groove III, transverse groove III, transverse groove II, and transverse groove I in sequence. Transverse grooves II and III connect the pattern grooves on both sides, dividing the patterned blocks into five parts from top to bottom. The second and fourth parts of the patterned blocks near the transverse groove III are provided with a longitudinal groove IV in the middle, and one end of the longitudinal groove IV connects to the transverse groove III.

[0007] A horizontal wavy groove is provided between adjacent patterned blocks V in the circumferential direction. The wavy groove adopts a two-section design from shallow to deep, with the width increasing and the width decreasing.

[0008] Each patterned block V has a horizontal groove with a variable angle in the middle.

[0009] Three heat dissipation slots are set between two adjacent horizontal grooves with varying angles. The middle heat dissipation slot is on the center extension line of the horizontal wavy knife groove, and the other two heat dissipation slots are evenly distributed on both sides of the middle heat dissipation slot.

[0010] Wear indicators are arranged inside groove II.

[0011] The depths of transverse groove I, transverse groove II, longitudinal groove IV, and longitudinal groove are less than the depth of the wear indicator; the depth of the horizontal wavy groove is equal to the depth of the wear indicator; the depths of the reinforcing rib, transverse groove III, and variable angle transverse groove are greater than the depth of the wear indicator.

[0012] Compared to existing technologies, the tread grooves I, III, and V of this invention are designed as straight grooves, while tread grooves II and IV are designed as zigzag periodic triangular wave grooves with an included angle α of 157°-160°. The main tread groove is designed as four zigzag periodic triangular wave grooves. When the tire is subjected to lateral force, the tread pattern has stronger grip. This design provides the tire with stronger tread lateral rigidity, reduces the tire's lateral slip distance, and solves the problem of vehicle turning deviation and fishtailing that exists in straight groove snow treads during use. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a structural diagram of pattern block I, pattern block II, pattern block III, pattern block IV, and pattern block V.

[0015] Figure 3 A cross-sectional schematic diagram of a steel sheet with a horizontal wavy cutter groove.

[0016] Figure 4 This is a schematic diagram of the tread pattern surface of the tire after wear and tear, when it has just been used in the summer. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. After reading the contents of the present invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present invention.

[0018] like Figure 1 , Figure 2 As shown, a snow tire tread pattern suitable for icy and snowy roads with anti-skid characteristics includes a tread pattern. The tread pattern includes tread grooves and tread blocks arranged circumferentially along the tire tread. Tread groove I1 is located at the center of the tire width direction. Tread grooves II2, III3, IV4 and V5 are arranged sequentially from the center to the two tire shoulders. Tread block I6 is between tread groove I1 and tread groove II2. Tread block II7 is between tread grooves II2 and III3. Tread block III8 is between tread grooves III3 and IV4. Tread block IV9 is between tread grooves IV4 and V5. Tread block V10 is located outside tread groove V5. Adjacent tread blocks on the same circumference are connected by reinforcing ribs 11 to ensure overall rigidity. The tread blocks I6, II7, III8, IV9, and V10 located on either side of tread groove I1 are centrally symmetrical in pairs. This centrally symmetrical design ensures that the tire experiences more even force distribution across all parts during driving, providing more stable longitudinal grip. Tread grooves II2 and IV4 are periodic triangular wave pattern grooves, with the included angle α of the triangular waves ranging from 157° to 160°.

[0019] A triangular wave is a wave whose waveform resembles a triangle. The shape of the triangular wave and the horizontal axis together form a triangle, and the triangular wave is a periodic signal with symmetrical triangular characteristics. Drawing on the definition of a triangular wave, this invention defines grooves II2 and IV4 as periodic triangular waveform grooves. That is, the outer contour of a periodic triangular waveform groove is formed by two straight line segments with constant slopes connected end-to-end to form a triangular unit. The geometric parameters (amplitude, period, slope, etc.) of the triangular unit remain consistent, and the overall structure satisfies a periodic repetition pattern. The included angle α of the triangular waveform is 157°-160°.

[0020] Furthermore, such as Figure 2 As shown, tread block I 6 is approximately a pentagon. One side of the pentagon forms the boundary of tread groove I 1, and two sides are connected to a reinforcing rib 11. The other two sides form the boundary of tread groove II 2. The included angle formed by the two sides serving as the boundary of tread groove II 2 is the included angle α of the triangular waveform. Similarly, tread blocks II 7, III 8, and IV 9 are also approximately pentagons. The main tread grooves are designed as four zigzag periodic triangular waveform grooves. When the tire is subjected to lateral forces, the tread pattern provides stronger grip. This design provides the tire with stronger lateral tread rigidity, reduces the tire's lateral slip distance, and solves the problem of vehicle cornering and fishtailing that exists with straight groove snow treads.

[0021] Pattern blocks I 6, II 7, III 8, and IV 9 have straight, zigzag lines near the wider grooves, not wavy lines, while their edges near the narrower grooves are nearly straight. Pattern grooves I 1, III 3, and V 5, formed by these patterns, are straight grooves with a narrow width. Pattern grooves II 2 and IV 4 are zigzag, periodic triangular wave-shaped patterned grooves with a wider width.

[0022] Tread blocks I 6, II 7, III 8, and IV 9 are sequentially provided with transverse sipes I 12, II 13, III 14, III 14, II 13, and I 12. Transverse sipes II 13 and III 14 connect the two side tread grooves, thus dividing the tread blocks into five parts from top to bottom. The second and fourth parts of the tread blocks closest to transverse sipe III 14 have longitudinal sipes IV 15 in the middle, one end of which connects to transverse sipe III 14. After the main tread groove was changed to a zigzag periodic triangular wave pattern, the tread block saturation increased. Adding longitudinal sipes IV 15 to the tread blocks reduced the rigidity of the tread blocks and optimized the tire's snow performance.

[0023] A horizontal wavy groove 16 is provided between adjacent patterned blocks V10 in the circumferential direction, such as... Figure 3As shown, the wave-shaped sipe 16 adopts a two-section design from shallow to deep, with the width increasing and the width decreasing. Compared with ordinary transverse sipes, the horizontal wave-shaped sipe 16 with the two-section design of being wider at the top and narrower at the bottom has a smaller degree of deformation under the same conditions, and stronger friction when in contact with icy and snowy roads, thus improving the local adhesion of snow tires.

[0024] Furthermore, each tread block V10 is equipped with a variable-angle lateral groove 18, with vertical sipes 17 above and below each groove. This results in a specially shaped open design for the tire shoulder. The open variable-angle lateral grooves 18 are arranged cyclically around the tire shoulder, maximizing snow removal compared to ordinary horizontal lateral grooves in existing technology, and improving the grip and traction of the snow tire. The open variable-angle lateral groove 18 design at the tire shoulder works in conjunction with the circumferentially arranged horizontal wave-shaped sipes 16 to maximize the removal of ice and snow while strengthening the rigidity of the tire shoulder and improving snow handling performance.

[0025] The variable-angle lateral groove 18 has a symmetrical structure, and its width increases from tread groove V5 towards the tire sidewall, reaching its maximum width at the outer edge of tread block V10, and then gradually decreasing. Vertical sipes 17 are provided on both the upper and lower sides of the variable-angle lateral groove 18, located in the middle of tread block V10. This design maximizes the tire's snow removal performance and, on this basis, optimizes the tire's flexibility and improves the grip of the snow tire.

[0026] A further preferred embodiment includes a wear indicator 19 arranged within the tread groove II 2. The depth of the wear indicator 19 is half the depth of the tread groove II 2 or some other depth less than the depth of the tread groove, and it is arranged laterally, evenly distributed in a 6th circumference. Since bottom cracking damage on the tire generally occurs in the tread grooves near the shoulder, placing the wear indicator 19 in the tread groove II near the center can avoid such effects.

[0027] The depths of transverse sipes I 12, II 13, IV 15, and 17 are less than the depth of the wear indicator 19; the depth of the heat dissipation groove 20 in the middle of the center extension line of the horizontal wavy sipe 16 is also less than the depth of the wear indicator 19; the depth of the horizontal wavy sipe 16 is equal to the depth of the wear indicator; the depths of the reinforcing rib 11, III 14, and the variable-angle transverse groove 18 are greater than the depth of the wear indicator 19. After winter wear, in summer, only the reinforcing rib 11 and the transverse sipe III 14 remain on tread blocks I 6, II 7, III 8, and IV 9. Adjacent tread blocks on the same circumferential direction are connected by the reinforcing rib 11, and only the variable-angle transverse groove 18 remains on tread block V. This mother-and-child tread design meets the needs of both winter and summer use, reducing the cost of tire replacement.

[0028] The winter tread blocks feature a tightly arranged matrix of sipes, providing excellent grip on ice and snow. As the sipes wear down, the tread pattern saturation decreases, but the overall rigidity increases, meeting the demands of high-mileage, wear-resistant conditions in summer. For example... Figure 4 As shown, the longitudinally zigzag periodic triangular wave pattern grooves after wear provide better longitudinal grip, and are more effective on drive wheels.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A snow tire tread pattern for snow and ice roads with anti-deviation and tail-wagging properties, comprising a tread pattern, the tread pattern comprising tread grooves and tread blocks arranged circumferentially along the tire tread, tread groove I (1) being located at the center of the tire width, and tread blocks I (6), tread groove II (2), tread block II (7), tread groove III (3), tread block III (8), tread groove IV (4), tread block IV (9), tread groove V (5), and tread block V (10) arranged sequentially from the center to the tire shoulders on both sides, with adjacent tread blocks on the same circumferential direction connected by reinforcing ribs (11), characterized in that: Pattern grooves II (2) and IV (4) are periodic triangular waveform pattern grooves, with the included angle α of the triangular waveforms being 157°-160°.

2. The anti-deviation and tail-wagging snow tire tread pattern suitable for icy and snowy roads according to claim 1, characterized in that: Patterned blocks I (6), II (7), III (8) and IV (9) are each provided with a transverse groove I (12), a transverse groove II (13), a transverse groove III (14), a transverse groove III (14), a transverse groove II (13) and a transverse groove I (12) in sequence. The transverse groove II (13) and the transverse groove III (14) connect the pattern grooves on both sides, dividing the patterned blocks into five parts from top to bottom. The second and fourth parts of the patterned blocks near the transverse groove III (14) are provided with a longitudinal groove IV (15), one end of the longitudinal groove IV (15) connects to the transverse groove III (14).

3. The anti-deviation and tail-wagging snow tire tread pattern suitable for icy and snowy roads according to claim 1, characterized in that: A horizontal wave-shaped groove (16) is provided between the circumferentially adjacent patterned blocks V (10). The wave-shaped groove (16) adopts a two-section design from shallow to deep, first wide and then narrow.

4. The anti-deviation and tail-wagging snow tire tread pattern suitable for icy and snowy roads according to claim 1, characterized in that: Each patterned block V (10) has a variable angle transverse groove (18) in the middle.

5. The anti-deviation and tail-wagging snow tire tread pattern suitable for icy and snowy roads according to claim 1, characterized in that: Three heat dissipation grooves (20) are set between two adjacent variable angle transverse grooves (18). The middle heat dissipation groove is on the center extension line of the horizontal wave-shaped knife groove (16), and the other two heat dissipation grooves are evenly distributed on both sides of the middle heat dissipation groove.

6. The anti-deviation and tail-wagging snow tire tread pattern suitable for icy and snowy roads according to claim 1, characterized in that: Wear indicators (19) are arranged inside the patterned groove II (2).

7. The anti-deviation and tail-wagging snow tire tread pattern suitable for icy and snowy roads according to claim 6, characterized in that: The depths of transverse groove I (12), transverse groove II (13), longitudinal groove IV (15) and longitudinal groove (17) are less than the depth of wear indicator (19); the depth of horizontal wave-shaped groove (16) is equal to the depth of wear indicator (19); the depths of reinforcing rib (11), transverse groove III (14) and variable angle transverse groove (18) are greater than the depth of wear indicator (19).

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