Tire pattern 3d solid steel sheet

Abstract

The utility model discloses a kind of tire pattern 3D solid steel sheets, including straight flower muscle, the one end of straight flower muscle is provided with the occlusal area for the pattern forming of transition zone, the transition zone includes straight face portion and the occlusal portion located on the inside and outside of straight face portion, the occlusal portion and occlusal area are all longitudinally and transversely staggered with protrusion and recess, the occlusal portion and straight flower muscle leave a certain distance. Transition zone is arranged between occlusal area and straight flower muscle, and straight face portion and occlusal portion are arranged on transition zone, not only guarantee the depth of pattern forming, but also guarantee the strength of entire steel sheet, so that it is not easy to deform in vulcanization process;While longitudinal and transverse staggered recess or protrusion is arranged on occlusal portion and occlusal area, so that the tread pattern block is less deformed when the tire formed contacts with ground, relative slip between pattern block reduces, tread pattern block rigidity increases, more conducive to tire handling performance and braking performance.

Description

Technical Field

[0001] This utility model belongs to the field of tire tread forming mold technology, specifically relating to a 3D three-dimensional steel sheet for tire tread patterns. Background Technology

[0002] To achieve functions such as anti-skid properties, tires are decorated with various patterns on their treads. Currently, tire patterns include circumferential patterns on the tread perimeter and vertical patterns that are recessed inwards from the tread. Vertical patterns are currently formed using steel sheets fixed to a mold. However, in existing technologies, such as the 3D steel sheet disclosed in Chinese patent CN215321809U, the patterned area is quite long, resulting in an excessively long portion extending beyond the mold, which can easily lead to deformation of the steel sheet. Utility Model Content

[0003] This utility model proposes a 3D three-dimensional steel sheet for tire treads, which ensures the depth of the tread pattern while also maintaining the strength of the entire steel sheet, making it less prone to deformation during the vulcanization process.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a 3D three-dimensional steel sheet for tire tread pattern, including a straight rib, one end of which is provided with an interlocking area for forming the tread pattern through a transition zone, the transition zone including a straight surface portion and interlocking portions located on the inner and outer sides of the straight surface portion, the interlocking portions and the interlocking area are provided with protrusions and depressions arranged longitudinally and laterally, and the interlocking portions are separated from the straight rib by a certain distance.

[0005] As a preferred embodiment of the above scheme, an exhaust vent is provided between the straight rib and the transition zone.

[0006] Further preferably, the protrusions and depressions have the same shape, which is a square pyramid or a square frustum.

[0007] Further preferably, the base of the square pyramid or truncated pyramid includes two short sides and two long sides, the two short sides are adjacent and of equal length, the two long sides are adjacent and of equal length, and the ratio between the short sides and the long sides satisfies the golden ratio.

[0008] More preferably, the thickness difference between the protrusion and the depression is between 0.5-3mm, and the height difference between the protrusion and the center surface of the entire steel sheet is between 1-3mm.

[0009] Further preferably, the distance between the interlocking portion and the straight rib is between 0.5-1mm.

[0010] The beneficial effects of this utility model are as follows: A transition zone is provided between the interlocking area and the straight rib, and a straight surface portion and an interlocking portion are provided on the transition zone. This not only ensures the depth of the formed tread pattern but also ensures the strength of the entire steel sheet, making it less prone to deformation during the vulcanization process. At the same time, longitudinal and transverse interlaced depressions or protrusions are provided on the interlocking portion and the interlocking area, so that when the formed tire contacts the ground, the deformation of the tread pattern blocks is reduced, the relative slippage between the tread blocks is reduced, and the rigidity of the tread pattern blocks is increased, which is more conducive to the tire's handling and braking performance. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of Example 1 (the protrusions and recesses are square pyramids).

[0012] Figure 2 for Figure 1 The three views (2a is the front view, 2b is the side view, and 2c is the top view).

[0013] Figure 3 This is a three-dimensional schematic diagram of Embodiment 2 (the protrusions and recesses are frustums).

[0014] Figure 4 for Figure 3 The three views (4a is the front view, 4b is the side view, and 4c is the top view).

[0015] Figure reference numerals: protrusion-1, depression-2, vent hole-3, straight rib-10, transition zone-20, straight surface-21, occlusal portion-22, occlusal area-30. Detailed Implementation

[0016] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0017] like Figure 1-3 As shown, a 3D steel sheet for tire tread patterns is manufactured using stamping or 3D printing, and then cast into a tire vulcanization mold. The steel sheet mainly consists of straight ribs 10, a transition zone 20, and an engagement zone 30. The straight ribs 10 are used for contact casting with the mold. At one end of the straight ribs 10, through the transition zone 20, is the engagement zone 30 for forming the tread pattern. The transition zone 20 includes a straight surface portion 21 and engagement portions 22 located on the inner and outer sides of the straight surface portion 21. Both the engagement portions 22 and the engagement zone 30 have longitudinally and laterally staggered protrusions 1 and recesses 2, and the engagement portions 22 are spaced a certain distance from the straight ribs 10.

[0018] As a preferred option, an exhaust vent 3 is provided between the straight rib 10 and the transition zone 20. The exhaust vent allows the tire 3D steel sheet to be vulcanized more fully, reducing the probability of air bubbles.

[0019] Preferably, the protrusion 1 and the depression 2 have the same shape, which is a four-sided pyramid or a four-sided frustum, so that the protrusions and depressions on both sides of the tread block interlock with each other, and the rubber of adjacent tread blocks supports each other. When the tire contacts the ground, the tread blocks deform less, the relative slippage between the tread blocks is reduced, the rigidity of the tread blocks is increased, which is more conducive to the tire's handling performance and braking performance.

[0020] The base of a square pyramid or frustum includes two short sides and two long sides. The two short sides are adjacent and of equal length, and the two long sides are adjacent and of equal length. The ratio between the short side a and the long side b satisfies the golden ratio (i.e., a / b is 0.618). The upper end of the frustum is similar to the base. Using this ratio, the entire protrusion and groove are more harmonious.

[0021] Preferably, the thickness difference between the protrusion 1 and the depression 2 is between 1 and 3 mm, the distance D3 between the protrusion 1 and the center surface of the entire steel sheet is between 1 and 3 mm, the distance H3 between the interlocking part 22 and the straight rib 10 is between 0.5 and 1 mm, the thickness D1 of the straight rib is between 0.5 mm and 1.5 mm, the height H1 is between 1 and 3 mm, the overall height H2 of the transition area is between 1.5 and 6 mm, the thickness D2 of the straight surface is between 0.5 mm and 1.5 mm, the overall height H4 of the interlocking part 22 and the interlocking area 30 is between 5 and 12 mm, and the width L1 of the protrusion 1 and the depression 2 is between 2 and 6 mm.

Claims

1. A 3D three-dimensional steel sheet for tire tread patterns, characterized in that: It includes a straight rib (10), one end of which is provided with an engagement area (30) for forming a pattern through a transition area (20). The transition area (20) includes a straight surface (21) and engagement portions (22) located on the inner and outer sides of the straight surface (21). The engagement portions (22) and the engagement area (30) are provided with protrusions (1) and depressions (2) in a longitudinal and transverse manner. The engagement portions (22) and the straight rib (10) are separated by a certain distance.

2. The 3D three-dimensional steel sheet for tire tread patterns according to claim 1, characterized in that: A ventilation hole (3) is provided between the straight rib (10) and the transition zone (20).

3. The 3D three-dimensional steel sheet for tire tread patterns according to claim 1, characterized in that: The protrusion (1) and the depression (2) have the same shape, which is a square pyramid or a square frustum.

4. The 3D three-dimensional steel sheet for tire tread patterns according to claim 3, characterized in that: The base of the square pyramid or truncated pyramid includes two short sides and two long sides. The two short sides are adjacent and of equal length, and the two long sides are adjacent and of equal length. The ratio between the short sides and the long sides satisfies the golden ratio.

5. The 3D three-dimensional steel sheet for tire tread patterns according to claim 1, characterized in that: The thickness difference between the protrusion (1) and the depression (2) is between 0.5-3mm, and the distance between the protrusion (1) and the center surface of the entire steel sheet is between 1-3mm.

6. The 3D three-dimensional steel sheet for tire tread pattern according to claim 1, characterized in that: The distance between the interlocking portion (22) and the straight rib (10) is between 0.5 and 1 mm.

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