Soccer ball and training component

Abstract

SOLUTION: Provided are a soccer ball and a training component. The soccer ball has a spherical body and a mark area provided on a surface of the spherical body. The mark area includes a ball initial direction guide line, a ball placement line, and a kick point set provided on the surface of the spherical body. The ball initial direction guide line and the ball placement line are located on different cross sections, and the cross sections pass through the spherical center of the spherical body. The kick point set includes kick reference points distributed at a plurality of intervals. A cross section where a distribution path of the kick reference points is overlapped with a cross section where the ball initial direction guide line is located.EFFECT: When A cross section where a ball initial direction guide line is located and a cross section where a ball placement line is located are perpendicular to the ground, a horizontal medline cross section is parallel to the ground, and a plurality of kick reference points are distributed downward from the horizontal medline cross section. A soccer ball and a training component can improve the training efficiency and effectiveness of place kicks.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to the technical field of sports equipment, and particularly to soccer balls and training components.

Background Art

[0002] In the sport of soccer, place kicks are important and high-level skills, and place kicks include free kicks, penalty kicks, corner kicks, goal kicks, etc. Each kicking motion includes elements such as the aim of placing the ball, the run-up, the landing of the supporting foot, the kick, and the follow-through and extension of the foot. However, these elements have strict objective technical elements such as specific angles, distances, positions, and directions, and there are different requirements for each. It is necessary to understand the influence of these objective technical elements on the kicking effect through many tests, and also to form movement habits and muscle memories through many practices, standardize the movements, and master the positioning skills of specific types of balls. However, in related technologies, there is a lack of training equipment for training place kicks, and it is impossible to systematically, accurately, rigorously, and efficiently guide the objective technical elements such as specific angles, distances, positions, and directions of each movement link. It is difficult to accurately test and repeatedly train the movements by setting the "most accurate and stable" conditions for these elements during training, resulting in poor training efficiency and low training effect.

Summary of the Invention

Problems to be Solved by the Invention

[0003] To provide a soccer ball, a training component, and a training device that can improve the training efficiency and training effect of place kicks.

[0004] Embodiments of the present disclosure can be realized in this way. Embodiments of the present disclosure provide a soccer ball. The soccer ball has a spherical body and a marked area provided on the surface of the spherical body. The marked area includes a guideline in the ball's initial direction, a ball placement line, and a set of kick points provided on the surface of the spherical body respectively. The guideline in the ball's initial direction and the ball placement line are located in different cross-sections, and each cross-section is a cross-section passing through the center of the sphere of the spherical body. The set of kick points includes a plurality of kick reference points distributed at intervals. The cross-section where the distribution path of the plurality of kick reference points is located overlaps with the cross-section where the guideline in the ball's initial direction is located. The horizontal median cross-section is defined as the cross-section passing through the center of the sphere of the spherical body. When the cross-section where the guideline in the ball's initial direction is located and the cross-section where the ball placement line is located are both perpendicular to the ground, the horizontal median cross-section is parallel to the ground, and the plurality of kick reference points are distributed downward from the horizontal median cross-section.

[0005] In the above-described embodiment, guidelines in the ball initial direction, ball placement lines, and the distribution path of the kick reference points, etc. are circumferential lines where the cross-section passing through the center of the sphere intersects the spherical surface of the sphere. After the user and the sphere rotate relative to each other, these lines visually indicating the mark area can be seen as straight lines that overlap each other. Depending on the angular relationship between the guideline in the ball initial direction and the ball placement line with respect to the ground, after the user rotates the sphere in place, when the cross-section where the guideline in the ball initial direction is located is perpendicular to the ground, the guideline in the ball initial direction visually appears "perpendicular" to the ground to the user. When the cross-section where the ball placement line is located is perpendicular to the ground, the ball placement line visually appears "perpendicular" to the ground to the user. Also, when the user faces the guideline in the ball initial direction that is "perpendicular" to the ground, the guideline in the ball initial direction visually appears as "a single straight line" to the user and can be used to indicate the direction. Therefore, placing the sphere so that the cross-sections where the guideline in the ball initial direction and the ball placement line are located are respectively perpendicular to the ground, and when the guideline in the ball initial direction matches the preset target direction, the position of the mark area on the sphere with respect to the ground can be determined, completing "accurately placing the ball", improving the ball placement efficiency, and improving the training efficiency.

[0006] All of the multiple kick reference points are located in the cross-section where the guideline in the initial ball direction is located. By aligning the "straight line" indicated by the guideline in the initial ball direction with a preset target direction, the user can indicate the flight direction of the sphere when kicking through the kick reference point. After "accurately placing the ball", each kick reference point is distributed downward from the horizontal centerline cross-section. The user kicks the ball at the position indicated by each kick reference point, sending the sphere flying in the direction indicated by the guideline in the initial ball direction. At the same time, when kicking towards a kick reference point that is farther from the horizontal centerline cross-section, i.e., lower, the takeoff angle of the sphere is higher. Therefore, according to the required angle corresponding to the height in the initial ball direction of the ball to be practiced, the user can kick the ball at the corresponding kick reference point for practice.

[0007] When the user conducts place kick training using the soccer ball of the present disclosure, the ball can be quickly placed through the guideline in the initial ball direction and the ball placement line, and the ball placement can be completed quickly, and the aim can be quickly aligned with the kick target. "Accurately placing the ball" can be quickly completed, and the positions of each kick reference point relative to the ground, the sphere, and the preset kick target are accurately fixed. At this time, through accurate approach and kick, the flight direction and trajectory of the sphere are also fixed and the same. Based on the effect in the initial ball direction after their own kick, the user can judge whether they have accurately and effectively hit the desired kick contact point on the sphere with their full set of kick actions, and can re-improve and fix each element during the action, such as the approach angle, course, landing of the supporting foot, kick posture, follow-through action, etc. After getting used to the effective action, the user can form action habits and muscle memories, and can also apply the details of the above-mentioned proficient actions when kicking with a soccer ball without a marked area to perform stable actions. Therefore, by using the practice with the soccer ball equipped with the above-mentioned marked area, the training efficiency and effect of place kicks can be improved.

[0008] Optionally, the central axis is defined as the intersection line between the cross-section where the guide line in the ball initial direction is located and the cross-section where the ball placement line is located. The marking area further includes a running-up guide mark, the running-up guide mark includes a plurality of running-up angle points, and the included angles between different running-up angle points and the cross-section where the central axis is located and the cross-section where the guide line in the ball initial direction is located are different.

[0009] In the above embodiment, when the user kicks a place kick and runs up from different directions with respect to the soccer ball, it affects elements such as the direction of the force applied to the kicking foot when the user kicks. Each cross-section where the running-up angle point and the central axis are located forms an included angle with the cross-section where the guide line in the ball initial direction is located, and it can be used to indicate the running-up angle of the user. After "accurately placing the ball", when the user stands directly beside the cross-section where the running-up angle point and the central axis are located, if the guide line in the ball initial direction visually appears "in a straight line", the running-up included angle of the user with respect to the ball initial direction can be indicated, and the user can repeat the practice for different running-up directions to improve the training efficiency and training effect.

[0010] Optionally, the running-up guide mark further includes a plurality of running-up guide lines. Each running-up angle point is provided on one running-up guide line. When both the cross-section where the guide line in the ball initial direction is located and the cross-section where the ball placement line is located are perpendicular to the ground, the cross-section where each running-up guide line is located is perpendicular to the ground.

[0011] In the above embodiment, the cross-section where the approach guideline is located is the cross-section where the approach angle point and the central axis are located. After "accurately placing the ball", when the user stands right next to the cross-section where the approach guideline is located corresponding to the approach angle to be practiced, the approach guideline can be visually seen as "a single straight line" by the user, indicating the direction, improving the user's recognition of the approach direction, and enhancing the training efficiency and training effect of the user's practice of the approach direction.

[0012] Optionally, the central axis is defined as the intersection line of the cross-section where the guideline in the ball initial direction is located and the cross-section where the ball placement line is located. The marking area further includes a follow-through guide mark. The follow-through guide mark includes a plurality of follow-through angle points and a plurality of follow-through guide lines. The included angles between the cross-sections where different follow-through angle points and the central axis are located and the cross-section where the guideline in the ball initial direction is located are different. Each follow-through angle point is provided on one follow-through guide line. When both the cross-section where the guideline in the ball initial direction is located and the cross-section where the ball placement line is located are perpendicular to the ground, the cross-sections where the respective follow-through guide lines are located are perpendicular to the ground.

[0013] In the above embodiment, when the user kicks a place kick, performing follow-through from different directions with respect to the soccer ball affects elements such as the direction of the force exerted by the user when kicking. The cross-section where the follow-through guide line is located is the cross-section where the follow-through angle point and the central axis are located. After "accurately placing the ball", when the user stands right next to the cross-section where the follow-through guide line corresponding to the follow-through angle to be practiced is located, the follow-through guide line can be visually seen as a straight line by the user, so it can indicate the direction, improving the visibility of the user's follow-through direction, and enhancing the training efficiency and training effect of the user's practice in the follow-through horizontal direction.

[0014] Optionally, the kick point set further includes a first side spin point, and in a direction perpendicular to the cross-section where the guideline in the initial ball direction is located, the first side spin point is distributed at an interval from one of the plurality of kick reference points. In the above embodiment, when the user kicks a place kick, by applying a force passing through the side of the ball center to the side of the target kick position, side spin is kicked out. After "accurately placing the ball", regarding the horizontal median cross-section as the "equator" position of the sphere, if the first side spin point and the corresponding kick reference point are at a "latitude" position close to each other, after "accurately placing the ball", the first side spin point is located on the side of the corresponding kick reference point, and the user can kick out the same side spin in the initial ball direction of the corresponding kick reference point by kicking towards the first side spin point. The user can repeatedly practice side spin to improve the training efficiency and training effect.

[0015] Optionally, the kick point set further includes a top spin point, the top spin point is provided at an interval from the kick reference point, the top spin point is located in the cross-section where the plurality of kick reference points are located, and when both the cross-section where the guideline in the initial ball direction is located and the cross-section where the ball placement line is located are perpendicular to the ground, the top spin point is located below one of the plurality of kick reference points.

[0016] In the above embodiment, when the user kicks a place kick, by applying a force passing through the upper part of the ball center below the kick position at the target height, top spin is kicked out. After "accurately placing the ball", the top spin point is located below the corresponding kick reference point, and the user can kick out the same top spin in the initial ball direction of the corresponding kick reference point by kicking towards the top spin point. The user can repeatedly practice top spin to improve the training efficiency and training effect.

[0017] Optionally, the kick point set further includes a second side spin point, and the second side spin points are distributed at intervals from the top spin point in a direction perpendicular to the cross-section where the guideline in the initial ball direction is located. In the above embodiment, when the user kicks a place kick, side spin is kicked out by applying a force passing through the side of the ball center to the side of the target kick. After "accurately placing the ball", regarding the horizontal median cross-section as the "equator" position of the sphere, if the top spin point corresponding to the second side spin point is at a "latitude" position close to it, after "accurately placing the ball", the second side spin point is located on the side of the corresponding top spin point, and when the user kicks towards the second side spin point, the side top spin corresponding to the top spin point can be kicked out. The user repeatedly practices the side top spin to improve the training efficiency and training effect.

[0018] Optionally, the marking area further includes a drawing auxiliary guide mark, the drawing auxiliary guide mark includes a kick drawing auxiliary line and a drawing auxiliary kick reference point, the drawing auxiliary kick reference point is located at the intersection of the kick drawing auxiliary line and the horizontal median cross-section, and has a complete blank area near the intersection. The complete blank area is separated from the kick drawing auxiliary line. When both the cross-section where the guideline in the initial ball direction is located and the cross-section where the ball placement line is located are perpendicular to the ground, the cross-section where the kick drawing auxiliary line is located is perpendicular to the ground.

[0019] In the above embodiment, after "accurately placing the ball", the cross-section where the kick drawing auxiliary line is located also becomes perpendicular to the ground, and the kick drawing auxiliary line visually appears as "one straight line" to the user and can indicate the set target kick direction. Also, with reference to the kick drawing auxiliary line and the intersection position of the kick drawing auxiliary line and the horizontal median cross-section, that is, the drawing auxiliary kick reference point, the user can draw points or lines in the nearby area as needed to create a new kick point and measure a new kick effect.

[0020] By providing a complete blank area, it becomes easier to color with an oil-based marker, enabling the user to draw auxiliary marks such as various effective kick point sets, approach guide marks, or follow-through guide marks that the user wants to test within the complete blank area by themselves, which helps to improve the efficiency of training.

[0021] Optionally, the central axis is defined as the intersection line of the cross-section where the guide line in the ball initial direction is located and the cross-section where the ball placement line is located, and the marking area further includes a first ball placement point and a second ball placement point, and the first ball placement point and the second ball placement point are respectively located at both ends of the central axis.

[0022] In the above embodiment, after "accurately placing the ball", one of the first ball placement point and the second ball placement point must be located at the upper part of the sphere and the other must be located at the lower part of the sphere. The user can assist in adjusting the placement posture of the sphere according to the positions of the first ball placement point and the second ball placement point relative to the ground, improving the accuracy and efficiency of the placement of the sphere. Left / right-footed players can jointly use the original (excluding the kick point set / penalty kick guide mark) on the sphere, which helps to improve the efficiency of training.

[0023] Optionally, the marking area is painted on the sphere with pigment, or a sticker is attached to the sphere, or printed on the sphere by printing.

[0024] In the above embodiment, by means of pigment painting, sticker attachment, and printing, the speed and accuracy of installing the marking area on the sphere are improved, and the productivity of the soccer ball is improved.

[0025] Embodiments of the present disclosure also provide a training component, which includes a support foot marker and a soccer ball as described above. The support foot marker includes a lateral positioning segment, a first marking portion, and a second marking portion. The lateral positioning segment is perpendicular to the cross-section where the guide line in the initial ball direction is located during use. The second marking portion is located at the end of the lateral positioning segment. The first marking portion is provided on the lateral positioning segment and is movably provided on the lateral positioning segment to adjust the distance between the first marking portion and the second marking portion, guide the preset landing point of the user's support foot on the ground, and configure the positional relationship between the support foot and the soccer ball.

[0026] In the above embodiment, first, place the support foot marker at an approximate position on the side of the penalty mark on the ground, and hold it after making the lateral positioning segment perpendicular to the ball initial direction course. After "accurately placing the ball", by moving the soccer ball forward or backward, set the distance from the second marking portion of the cross-section where the guide line in the initial ball direction is located to the length of the radius of the sphere, and then hold it. Further, by sliding the first marking portion on the lateral positioning segment, adjust the lateral distance of the first marking portion with respect to the cross-section where the guide line in the initial ball direction is located and the second marking portion. Finally, move the soccer ball forward or backward in the cross-section where the guide line in the initial ball direction is located to determine the position where the lateral positioning segment is orthogonally projected onto the ground with respect to the kick point set, adjust the positional relationship between the landing point of the support foot and the actual kick point, and give the user's support foot a guide for the "correct standing position", so that the user repeatedly practices the standing position of the support foot and improves the training effect.

[0027] Optionally, the support foot marker includes a length reference segment and a horizontal positioning segment. The length reference segment is connected to the horizontal positioning segment and also connected to the position of the second mark portion. The length of the length reference segment serves as a dimensional reference for adjusting the distance between the first mark portion and the second mark portion. The horizontal positioning segment is made of a soft rope material.

[0028] In the above embodiment, by folding the length reference segment so as to overlap it parallel to the horizontal positioning segment and sliding the first mark portion based on the length of the length reference segment to adjust its position, the position of the first mark portion relative to the second mark portion or the actual kick point can be quickly adjusted, which helps to improve the training efficiency. By limiting the material of the horizontal positioning segment, it can prevent the horizontal positioning segment from being crushed by the soccer shoes during use, improve the lifespan of the horizontal positioning segment, and help ensure the training effect.

[0029] Optionally, the mark area further includes a penalty kick guide mark. The penalty kick guide mark includes a first penalty kick angle point, a second penalty kick angle point, a third penalty kick angle point, and a fourth penalty kick angle point. Each is used for aiming at the four corners of the goal when instructing the user to take a penalty kick. The area formed by connecting the first penalty kick angle point, the second penalty kick angle point, the fourth penalty kick angle point, and the third penalty kick angle point in sequence instructs the user to aim at the range of the kick point within the goal area when taking a penalty kick.

[0030] In the above embodiment, the place kick includes a penalty kick kicked from the penalty mark in front of the goal. The relative positions of the centers of the spheres of the first penalty kick angle point, the second penalty kick angle point, the third penalty kick angle point, and the fourth penalty kick angle point with respect to the center of the sphere can correspond to the four corners of the goal respectively. The user can repeatedly practice the action of kicking the ball at the position of the goal corner during the penalty kick, thereby improving the training efficiency and training effect. After connecting the first penalty kick angle point, the second penalty kick angle point, the fourth penalty kick angle point, and the third penalty kick angle point in sequence, the area within the range of the four points corresponds to the goal area. The user can repeatedly practice the action of kicking the ball at the position within the goal area during the penalty kick, thereby improving the training efficiency and training effect.

Effect of the Invention

[0031] Compared with the prior art, the effects of the embodiments of the present disclosure are as follows. This soccer ball and training component play a role in instructing the user. When the user conducts penalty kick training using the soccer ball of the present disclosure, it enables the user to quickly complete the ball placement through the guideline in the initial direction of the ball and the ball placement line, and accurately aim at the kick target. It completes "accurately placing the ball", and the respective kick reference points are accurately fixed with respect to the ground, the spherical body, and the position of the preset kick target. At this time, the accurate approach run and the flight direction and trajectory of the spherical body after the kick are also fixed and the same. Based on the effect of the initial direction of the ball, the user can determine whether they have accurately and effectively hit the desired kick point on the spherical body with their full set of movements, and can re-improve and fix each element of the movements, such as the approach angle, course, landing movement of the supporting foot, kick posture, follow-through movement, etc. After getting familiar with the effective movements, the user can form movement habits and muscle memory, so that when kicking a soccer ball without a marked area, they can also apply the details of the above-mentioned proficient movements to stabilize. Therefore, by practicing with the soccer ball equipped with the above-mentioned marked area, the training efficiency and effect of penalty kicks can be improved.

Brief Description of the Drawings

[0032] To clarify the technical concept of the embodiments of the present disclosure, the drawings in the embodiments will be briefly described below. However, since the following drawings only show certain embodiments of the present disclosure, they should not be regarded as limiting the scope.

Figure 1

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Embodiments for Carrying Out the Invention

[0033] In order to more clearly illustrate the objectives, technical means, and advantages of the embodiments of the present disclosure, hereinafter, the technical means in the embodiments of the present disclosure will be clearly and completely described with reference to the drawings in the embodiments of the present disclosure. However, it is obvious that the described embodiments are not all embodiments of the present disclosure, but only some embodiments of the present disclosure. Generally, the components of the embodiments of the present disclosure described and illustrated in the drawings in this specification can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the present disclosure for which protection is claimed, but only represents selected embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present disclosure. Note that since the same reference numerals and characters represent the same items in the following drawings, once an item is defined in the drawings, it is not necessary to further define and explain it in the subsequent drawings.

[0034] In the description of the present disclosure, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. refer to the directions or positional relationships shown in the accompanying drawings or those customarily arranged when the product of the present invention is used. These are only intended to facilitate the description of the present disclosure and simplify the explanation, and do not indicate or imply that the mentioned devices or elements must be in a specific orientation, configured, and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present disclosure. Also, when terms such as "first", "second", "third", etc. appear, they are used only for the purpose of distinguishing and explaining, and it is not understood that they indicate or imply relative importance. Also, when terms such as "horizontal", "vertical", "hanging", etc. are present, it does not mean that absolute horizontal or hanging is required for the component, and it may be slightly tilted. "Horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, and it may be slightly tilted.

[0035] In the description of the present disclosure, when terms such as "installation", "attachment", "connection", "coupling", etc. appear, it is necessary to note that a broad understanding should be made unless there are specific explicit regulations or limitations. For example, it may be a fixed connection, a removable connection, or an integral connection, and it may be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or a connection within two elements. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood in specific cases.

[0036] It should be noted that the features in the embodiments of the present disclosure can be combined with each other without conflict. The embodiments of the present disclosure provide a soccer ball, a training component and a training device. The soccer ball has a spherical body and a marked area provided on the surface of the spherical body. The marked area includes a guide line in the initial direction of the ball, a ball placement line, and a set of kick points, each of which is installed on the surface of the spherical body. The guide line in the initial direction of the ball and the ball placement line are in different cross-sections. Each cross-section passes through the center of the sphere of the spherical body. The set of kick points includes a plurality of kick reference points distributed at intervals. The cross-section where the distribution path of the plurality of kick reference points is located coincides with the cross-section where the guide line in the initial direction of the ball is located. The horizontal median cross-section is defined as the cross-section passing through the center of the sphere of the spherical body. When the cross-section where the guide line in the initial direction of the ball is located and the cross-section where the ball placement line is located are both perpendicular to the ground, the horizontal median cross-section is parallel to the ground, and the plurality of kick reference points are distributed downward from the horizontal median cross-section.

[0037] In a mathematical definition, a sphere is called a spatial geometry obtained by rotating a semi-circle once around a straight line with a diameter. A sphere is a three-dimensional figure with a continuous curved surface, and a geometry surrounded by a spherical surface is called a sphere. The soccer ball in the present disclosure belongs to the sphere described in this definition. All points on the spherical surface are calculated and aligned using tools such as "spherical coordinate system", "latitude and longitude coordinate system", and "arc length".

[0038] Guidelines in the ball initial direction, ball placement lines, approach guidelines, and the distribution paths of the kick reference points, etc. are circumferential lines where the cross-section passing through the center of the sphere intersects with the spherical surface of the sphere. After the user and the sphere rotate relative to each other, when standing directly beside these cross-sections, that is, when one eye is in front of the cross-section and the other eye is behind the cross-section, and the nose passes through the cross-section, the relevant cross-section lines within the visual mark area can be seen as straight lines that overlap each other. Due to the included angle relationship between the guideline in the ball initial direction and the ball placement line with respect to the ground, after the user rotates the sphere in place, when the cross-section where the guideline in the ball initial direction is located is perpendicular to the ground, the guideline in the ball initial direction visually appears "perpendicular" to the ground for the user. When the cross-section where the ball placement line is located is perpendicular to the ground, the ball placement line visually appears "perpendicular" to the ground for the user. Also, when the user stands directly beside the cross-section where the guideline in the ball initial direction perpendicular to the ground is located, the guideline in the ball initial direction visually appears as "a straight line" and can be used to indicate the direction.

[0039] Therefore, when the cross-sections where the guideline in the ball initial direction and the ball placement line are located are perpendicular to the ground respectively for the sphere, by arranging the sphere so that the guideline in the ball initial direction aligns with the preset target direction, the positions of the mark area on the sphere with respect to the ground and the ball initial direction target can be determined, "accurately placing the ball" can be completed, the ball placement efficiency is improved, and the training efficiency is improved. All of the multiple kick reference points are located on the cross-section where the guideline in the ball initial direction is located. By aligning the "straight line" indicated by the guideline in the ball initial direction with the preset target direction, the flight direction of the sphere when the user kicks through the kick reference point can be indicated.

[0040] After "accurately placing the ball", each kicking reference point is distributed downward from the horizontal centerline cross-section. The user kicks the ball at the position indicated by each kicking reference point, and while the spherical body is kicked in the direction indicated by the guide line in the initial ball direction, the farther away from the horizontal centerline cross-section, that is, the lower the kicking reference point is, the higher the jumping angle of the spherical body. Therefore, according to the required angle corresponding to the height of the initial ball direction to be practiced, the ball can be kicked at the corresponding kicking reference point for practice. When the user conducts placement kick training using the soccer ball of the present disclosure, the ball can be quickly placed through the guide line in the initial ball direction and the ball placement line, and can quickly aim at the kicking target, quickly complete "accurately placing the ball", and the positions of each kicking reference point relative to the ground, the spherical body, and the preset kicking target are accurately fixed. At this time, through accurate running-up and kicking, the flying direction and trajectory of the spherical body are also the same and fixed. The user can judge whether they have accurately and effectively hit the designated kicking point on the spherical body they hope for in their full set of movements based on the effect of the initial ball direction after their kick, and can re-improve and fix each element of the movement, such as the running-up angle and course, the landing movement of the supporting foot, the kicking posture, the follow-through movement, etc. After getting familiar with the effective movement, the movement habit and muscle memory can be formed. Therefore, when kicking a soccer ball without a marking area, the details of the above-mentioned proficient movements can also be applied to stabilize, and the specific kicking effect trained can be completed. Therefore, by using such soccer ball practice with marking areas, the training efficiency and kicking effect of the placement kick can be improved.

[0041] When the soccer ball is correctly positioned on the ball placement line, all other mark elements on the spherical surface are also accurately positioned and can be used for training. Otherwise, all their positions will be displaced, incorrect, or invalidated. Therefore, the ball placement line is one of the most important elements in using that soccer ball.

[0042] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. When there is no collision, the following embodiments and the features in the embodiments can be combined with each other. Referring to FIG. 1, one embodiment of the present disclosure provides a soccer ball 100 used when a user 1000 trains a place kick as shown in FIG. 6. The user 1000 controls the flight trajectory of the spherical body 1 when kicking a place kick by training the place kick using the soccer ball 100 of the present disclosure. Optionally, the spherical body 1 includes an inner bladder (not shown) and an outer skin that wraps the inner bladder. Both the outer skin and the inner bladder are spherical, and their centers of the sphere overlap.

[0043] Referring to FIGS. 1 and 2, optionally, the soccer ball 100 has a spherical body 1 and a mark area 2 provided on the surface of the spherical body 1. The mark area 2 includes a guideline 21 in the ball initial direction, a ball placement line 22, and a kick point set 24 provided on the surface of the spherical body 1 respectively. Optionally, the mark area 2 is provided on the surface of the outer skin. The soccer ball 100 has a spherical body 1 and a mark area 2 provided on the surface of the spherical body 1. The mark area 2 includes a guideline 21 in the ball initial direction, a ball placement line 22, and a kick point set 24 provided on the surface of the spherical body 1 respectively.

[0044] The guideline 21 in the ball initial direction and the ball placement line 22 are located in different cross-sections. Each cross-section is a cross-section passing through the center of the sphere of the spherical body 1. The kick point set 24 includes kick reference points 241 distributed at intervals. The cross-section where the distribution path of the plurality of kick reference points 241 is located overlaps with the cross-section where the guideline 21 in the ball initial direction is located. The horizontal centerline cross-section 231 is defined as a cross-section passing through the center of the sphere of the spherical body 1. The central axis 232 is defined as the intersection line between the cross-section where the guideline 21 in the ball initial direction is located and the cross-section where the ball placement line 22 is located. When both the cross-section where the guide line 21 in the ball initial direction is located and the cross-section where the ball placement line 22 is located are perpendicular to the ground, the horizontal center line cross-section 231 is parallel to the ground, the central axis 232 is perpendicular to the ground, and the plurality of kick reference points 241 are distributed downward from the horizontal center line cross-section 231.

[0045] The distribution paths of the guide line 21 in the ball initial direction, the ball placement line 22, and the kick reference points 241, etc. are all circumferential lines where the cross-section passing through the center of the sphere 1 and the spherical surface of the sphere 1 intersect. When the user 1000 and the sphere 1 rotate relative to each other, these lines visually indicating the marking area 2 seem to be straight lines overlapping each other. Based on the angular relationship between the guide line 21 in the ball initial direction and the ball placement line 22 with respect to the ground, after the user 1000 rotates the sphere 1 on the spot to adjust the grounding point of the sphere 1 on the ground, when the cross-section where the guide line 21 in the ball initial direction is located is perpendicular to the ground, the guide line 21 in the ball initial direction seems to be "perpendicular" to the ground in the user 1000's vision. When the cross-section where the ball placement line 22 is located is perpendicular to the ground, the ball placement line 22 seems to be "perpendicular" to the ground in the user 1000's vision. Also, when the user 1000 stands right beside the cross-section where the guide line 21 in the ball initial direction is located, the guide line 21 in the ball initial direction can seem to be "a straight line" in the user 1000's vision and can be used for direction indication. The plurality of kick reference points 241 are all located in the cross-section where the guide line 21 in the ball initial direction is located. By aligning the "straight line" indicated by the guide line 21 in the ball initial direction with a preset target direction, the flight direction of the sphere 1 when the user 1000 kicks through the kick reference point 241 can be guided.

[0046] Therefore, the sphere 1 is arranged such that the cross-section where the guide line 21 in the ball initial direction and the ball placement line 22 are located is perpendicular to the ground, and when the guide line 21 in the ball initial direction is aligned with a preset target direction, the position of the mark area 2 on the sphere 1 relative to the ground can be determined, completing "accurately placing the ball", improving the ball placement efficiency and the training efficiency. Therefore, the steps of "accurately placing the ball" are: 1. Making the guide line 21 in the ball initial direction "perpendicular" to the ground. 2. Making the ball placement line 22 "perpendicular" to the ground. 3. Rotating the soccer ball on the spot and aligning the guide line 21 in the ball initial direction with the direction of a preset kick target.

[0047] After "accurately placing the ball", each kick reference point 241 is distributed downward from the horizontal centerline cross-section 231. The user 1000 kicks at the position indicated by each kick reference point 241, causing the sphere 1 to jump out in the direction indicated by the guide line 21 in the ball initial direction. At the same time, when kicking towards a kick reference point 241 that is farther away from the horizontal centerline cross-section 231, that is, lower, the jumping angle of the sphere 1 (the angle between the ball initial direction line and the ground) is higher. Thus, according to the required angle corresponding to the height in the ball initial direction to be practiced, the ball can be kicked into the corresponding kick reference point 241 for practice.

[0048] When user 1000 conducts penalty kick training using the soccer ball 100 of the present disclosure, the ball can be quickly placed through the guideline 21 in the initial ball direction and the ball placement line 22, and the target can be quickly aimed at. "Accurately placing the ball" can be quickly completed, and the positions of the ground, the sphere 1, and the preset kick target of each kick reference point 241 are accurately fixed. At this time, the accurate approach run and the flight direction and trajectory of the sphere 1 after the kick are also fixed and the same. Based on the initial ball direction effect after their own kicks, users 1000 can determine whether they accurately and efficiently hit the desired kick point on the sphere 1 with their full set of movements, and can re-improve and fix each element of the movements, such as the approach angle, course, landing of the support foot 1002, kick posture, follow-through movement, etc. After getting familiar with the effective movements, movement habits and muscle memory can be formed. Therefore, when kicking with the soccer ball 100 without the mark area 2, the details of the above-mentioned proficient movements can also be applied, and the specific kicking effects trained can be stably completed. Therefore, by practicing with the soccer ball 100 provided with the mark area 2, the training efficiency and effect of penalty kicks can be improved.

[0049] Referring to FIGS. 1 and 2, optionally, the included angle of the center of the sphere 1 at both ends of the guideline 21 in the initial ball direction is 90°. The included angle of both ends of the ball placement line 22 with respect to the center of the sphere 1 is 90°. One end of the guideline 21 in the initial ball direction is connected to one end of the ball placement line 22 and is also connected to one end of the central axis 232. The other end of the guideline 21 in the initial ball direction and the other end of the ball placement line 22 are both located in the horizontal center line section 231. Optionally, it can also be understood that the section where the guideline 21 in the initial ball direction is located and the section where the ball placement line 22 is located are perpendicular to each other.

[0050] Optionally, the guideline 21 in the ball initial direction may be a continuously extending line, or a discontinuously extending line such as a dashed line, a dot-dash line, or a double-dot-dash line. The ball placement line 22 may be a continuously extending line, or a discontinuously extending line such as a dashed line, a dot-dash line, or a double-dot-dash line. The kick reference point 241 includes, but is not limited to, the intersection of two lines, a circular point, an elliptical point, a triangular point, a square point, a polygonal point, or an irregular point, and may be a solid point or a hollow point.

[0051] Referring to FIGS. 1 and 5, as an option, the included angle of two adjacent kick reference points 241 with respect to the center of the sphere 1 of the sphere represents the included angle between the jumping trajectories of the sphere 1 when touching the ball through the two kick reference points 241. As an example, the kick reference point 241a located in the horizontal center line section 231 is used for practicing a place kick attached to the ground, the kick reference point 241b is used for practicing a place kick with a flight elevation angle of 8.4°, and the kick reference point 241c is used for practicing a place kick with a flight elevation angle of 14.7°. When a standard size 5 ball with a circumference of 69 cm is adopted for the sphere 1, the arc length between the kick reference point 241b and the kick reference point 241a is 1.61 cm, and the arc length between the kick reference point 241c and the kick reference point 241a is about 2.82 cm.

[0052] In FIG. 7, in the embodiment of the present invention, without a precise ball placement line 22 as a reference, even if all other steps are accurate, the horizontal center line section 231 of the sphere will not be truly parallel to the ground, and all kick point sets 24 will not be in truly accurate positions. Without the ball placement line 22, the user will place the ball only by feeling and estimation, inevitably resulting in mistakes in ball placement, and the positions of all point / line elements on the spherical surface will all shift. Therefore, the ball placement line 22 must be provided and is the first.

[0053] Specifically, taking the case of shooting towards the upper left corner of the goal outside the penalty area line 18Y / 16.5 m as an example, Table 1 below can be referred to.

Table 1

[0054] It should be noted that there are a first ball placement point 281 and a second ball placement point 282 at the upper and lower ends of the defined central axis respectively. However, when the two ball placement points are used alone, the ball placement cannot be completed. In visual theory, when the human eye is at the height of the center of the ball (at a height of about 11 cm from the ground, in this case, the head with the human eye needs to approach the ground), and the human is simultaneously at an infinite distance from the soccer ball 100, it is clearly impossible to observe the two ball placement points simultaneously on the field.

[0055] Please refer to Figure 7. In fact, when observing the ball placement, since the human body is usually in a natural standing position, the height of a person's eyes from the ground is 1.5m - 2m (slightly smaller than the body height value). Also, since the standing position is usually within several meters from the center of the soccer ball 100, the top of the soccer ball 100 can usually be seen. However, since the bottom point of the soccer ball 100 is close to the grassland (i.e., the height from the ground is about 0), with a high eye position, the field of vision is blocked by the spherical body when observing the bottom point. As a result, the defined central axis cannot be directly observed, that is, it cannot be used to accurately assist in placing the ball according to the defined central axis. On the other hand, the height of the horizontal center line 231 of the soccer ball is about 11cm, and at this time, it visually appears as an arc line to humans. It is also impossible to directly determine whether the horizontal center line 231 is really parallel to the ground.

[0056] To solve this problem, it is necessary to use the ball placement line 22. The ball placement line 22 is the line where the cross-section passing through both ends of the defined central axis (which can be formed by "three points and one plane") intersects with the spherical surface. A person can easily judge whether the placement of the soccer ball is accurate by whether this ball placement line is perpendicular to the ground in a natural posture, and can adjust the kick point to the accurate position with simple adjustment.

[0057] When the soccer ball 100 is correctly placed via the ball placement line 22, all other elements (including marks) on the spherical surface will also be accurately positioned and can be used for training. Otherwise, their positions will all be shifted, incorrect, or invalidated. Therefore, the ball placement line 22 is one of the main elements during the training of the soccer ball 100. Referring to Figures 1 and 2, as an option, the marking area 2 further includes a running-up guide mark 25. The running-up guide mark 25 includes a plurality of running-up angle points 251. The included angles between the cross-sections where different running-up angle points 251 and the central axis 232 are located and the cross-section where the guide line 21 in the initial ball direction is located are different. The cross-section where each running-up angle point 251 and the central axis 232 are located is called a "running-up cross-section".

[0058] It should be noted that each striking motion necessarily includes a run-up. When taking a run-up during a kick motion, the requirements for the included angle between the direction of the run-up course and the initial direction of the ball are different respectively, and it is possible to meet the required follow-through angle of the foot extension, but only the run-up guide mark can accurately guide the run-up angle. When user 1000 takes a place kick and runs up from different directions with respect to soccer ball 100, it will affect the direction of the force of kicking foot 1001 when user 1000 kicks. Each "run-up cross-section" forms an included angle with the cross-section where guide line 21 in the initial direction of the ball is located, and can be used to indicate the run-up angle of user 1000. After "accurately placing the ball", when user 1000 stands directly beside the "run-up cross-section" (that is, one eye is in front of the cross-section and the other eye is behind the cross-section, and the nose passes through the cross-section), the "run-up cross-section" visually appears as "a straight line", and user 1000 can indicate the included angle of the run-up with respect to the initial direction of the ball. Thus, user 1000 can repeatedly practice for different run-up directions, improving the training efficiency and training effect.

[0059] Referring to FIGS. 1 and 2, optionally, the run-up guide mark 2 further includes a plurality of run-up guide lines 252. The run-up guide lines 252 are provided at each run-up angle point 251. When both the cross-section where the guide line 21 in the initial direction of the ball is located and the cross-section where the ball placement line 22 is located are perpendicular to the ground, the cross-sections where the run-up guide lines 252 are located are respectively perpendicular to the ground. The cross-sections where each run-up guide line 252 is located become the "run-up cross-sections" of the corresponding run-up angle point 251.

[0060] The cross-section where the approach guide line 252 is located is the "approach cross-section" corresponding to the approach angle point 251 and the central axis 232. After "accurately placing the ball", when the user 1000 stands right next to the "approach cross-section" where the corresponding approach angle point 251 is located, the approach guide line 252 can visually appear as "a straight line" to the user 1000, can indicate the included angle between the approach and the initial ball direction, enhance the visibility of the approach direction for the user 1000, and help improve the training efficiency and training effect of the user 1000 for practicing the approach direction.

[0061] Referring to FIGS. 1 and 2, optionally, a plurality of approach angle points 251 can be provided on the horizontal center line cross-section 231. The plurality of approach angle points 251 may be located within a range of 90° with respect to the center of the sphere 1 on one side of the kick reference point 241 provided on the horizontal center line cross-section 231, or may be located within a range of 90° with respect to the center of the sphere 1 on the side opposite to the kick reference point 241 provided on the horizontal center line cross-section 231, or a plurality of approach angle points 251 may be provided on both sides of the kick reference point 241 provided on the horizontal center line cross-section 231.

[0062] As an example, both the approach angle point 251a and the approach angle point 251b are located on the horizontal center line cross-section 231. The included angle with respect to the center of the sphere 1 between the approach angle point 251a and the kick reference point 241 provided on the horizontal center line cross-section 231 is 45°, and the included angle with respect to the center of the sphere 1 between the approach angle point 251b and the kick reference point 241 provided on the horizontal center line cross-section 231 is 45°. The approach angle point 251a may indicate the approach angle direction of 45° on the left side, and the approach angle point 251b may indicate the approach angle direction of 45° on the right side. Other approach angle points 251 can be used to indicate the approach angle directions of 30°, 60°, 70°, etc., respectively.

[0063] Optionally, the approach angle point 251 includes, but is not limited to, the intersection of two lines, a circular point, an elliptical point, a triangular point, a square point, a polygonal point, or an irregular point, and may be a solid point or a hollow point. Referring to FIGS. 1 and 2, optionally, one end of each approach guide line 252 is connected to the approach angle point 251, and the other end of each approach guide line 252 is connected to one end of the ball initial direction guide line 21 and one end of the ball placement line 22.

[0064] Optionally, the approach guide line 252 may be a continuously extending line or a discontinuously extending line such as a dashed line, a dot-dash line, or a double dot-dash line. Optionally, by omitting the approach guide line 252 at the location where a part of the approach angle point 251 used by a left-footed player is located, the difficulty for the user 1000 to recognize the marking area 2 when using the soccer ball 100 can be reduced. At the same time, the approach angle point 251 is left so that the user 1000 can draw the approach guide line 252 by himself according to actual needs.

[0065] Referring to FIG. 1, optionally, the kick point set 24 also includes a top spin point 242. The top spin point 242 is provided at a distance from the kick reference point 241. The top spin point 242 is located in the cross section where a plurality of kick reference points 241 are located. When the cross section where the ball initial direction guide line 21 is located and the cross section where the ball placement line 22 is located are both perpendicular to the ground, the top spin point 242 is located below one of the plurality of kick reference points 241.

[0066] When user 1000 takes a place kick, by applying a force that passes above the center of the ball without passing through the kick point at the target height, a ball with the same initial direction angle as the "kick point at the target height" but with a topspin rotation method is kicked. After "accurately placing the ball", the topspin point 242 is located below the corresponding kick reference point 241, and when user 1000 kicks towards the topspin point 242, the topspin of the corresponding kick reference point 241 can be kicked out. User 1000 repeatedly practices topspin to improve training efficiency and training effect.

[0067] Optionally, the number of topspin points 242 is plural. Each topspin point 242 is located on the side where one kick reference point 241 is away from the guideline 21 in the ball initial direction. Optionally, the topspin point 242 includes, but is not limited to, the intersection of two lines, circular points, elliptical points, triangular points, square points, polygonal points, or irregular points, and may be a solid point or a hollow point. Referring to FIG. 1, optionally, the kick point set 24 further includes a first side spin point 243 and a second side spin point 244. In the direction perpendicular to the cross-section where the guideline 21 in the ball initial direction is located, they are distributed at intervals between the first side spin point 243 and one of the plurality of kick reference points 241. In the direction perpendicular to the cross-section where the guideline 21 in the ball initial direction is located, the second side spin point 244 and the topspin point 242 are distributed at intervals.

[0068] When user 1000 takes a place kick, by applying a force that passes by the side of the ball center instead of passing through the ball center to the side of the target kick position, the initial direction angle of the ball at the "kick point at the target height" is the same, but the rotation method kicks out side spin. After "accurately placing the ball", if the horizontal median cross-section 231 is regarded as the "equator" position of the sphere 1, the kick reference point 241 corresponding to the first side spin point 243 is at a nearby "latitude" position, and the top spin point 242 corresponding to the second side spin point 244 is at a nearby "latitude" position. After "accurately placing the ball", the first side spin point 243 is located on the side of the corresponding kick reference point 241, and the second side spin point 244 is located on the side of the corresponding top spin point 242. By kicking towards the first side spin point 243 by user 1000, side spin corresponding to the kick reference point 241 can be kicked out. By kicking towards the second side spin point 244 by user 1000, "side top spin" corresponding to the top spin point 242 can be kicked out. User 1000 repeatedly practices side top spin to improve training efficiency and training effect.

[0069] Referring to FIG. 1, as an option, the distance between the first side spin point 243 and the horizontal median cross-section 231 is equal to the distance between the corresponding kick reference point 241 and the horizontal median cross-section 231. The distance between the second side spin point 244 and the horizontal median cross-section 231 is equal to the distance between the corresponding top spin point 242 and the horizontal median cross-section 231. As an option, the deviation between the included angle of the first side spin point 243 with respect to the ball center of the sphere 1 of the horizontal median cross-section 231 and the included angle of the corresponding kick reference point 241 with respect to the ball center of the sphere 1 of the horizontal median cross-section 231 is within 5°. The deviation between the included angle of the second side spin point 244 with respect to the ball center of the sphere 1 of the horizontal median cross-section 231 and the included angle of the corresponding top spin point 242 with respect to the ball center of the sphere 1 of the horizontal median cross-section 231 is within 5°.

[0070] As can be seen from FIG. 1, as an option, after "accurately placing the ball", first side spin points 243 are provided on the left and right sides of the kick reference point 241, and second side spin points 244 are provided on the left and right sides of the top spin point 242, allowing the user 1000 to approach from the left and right and practice side spin with either the left foot or the right foot. As an option, the number of the first side spin points 243 is plural. Each pair of the first side spin points 243 is located on both sides in a direction perpendicular to the cross-section where the guide line 21 in the ball initial direction of one kick reference point 241 is located. As an option, the number of the second side spin points 244 is plural. The two second side spin points 244 are respectively located on both sides in a direction perpendicular to the cross-section where the guide line 21 in the ball initial direction of one top spin point 242 is located.

[0071] As an option, the first side spin point 243 includes, but is not limited to, the intersection of two lines, circular points, elliptical points, triangular points, square points, polygonal points, or irregular points, and may be a solid point or a hollow point. The second side spin point 244 includes, but is not limited to, the intersection of two lines, circular points, elliptical points, triangular points, square points, polygonal points, or irregular points, and may be a solid point or a hollow point.

[0072] Referring to FIG. 8, the central axis may be defined as the intersection line between the cross-section where the guide line 21 in the ball initial direction is located and the cross-section where the ball placement line 22 is located. The mark area 2 further includes a follow-through guide mark 29. The follow-through guide mark 29 includes a plurality of follow-through angle points 291 (including a first follow-through angle point 291a and a second follow-through angle point 291b) and a plurality of follow-through guide lines (including a first follow-through guide line 29a and a second follow-through guide line 29b). The included angle between the cross-section where different follow-through angle points 291 and the central axis are located and the cross-section where the guide line in the ball initial direction is located is different. One follow-through guide line is provided for each follow-through angle point 291. When both the cross-section where the guide line 21 in the ball initial direction is located and the cross-section where the ball placement line 22 is located are perpendicular to the ground, the cross-section where each follow-through guide line is located is perpendicular to the ground.

[0073] The follow-through motion (which can also be understood as the follow-through / kick-off motion) refers to the follow-through motion with a specific displacement direction and motion trajectory that the ball contact part of the foot performs after the ball contact part of the foot contacts the kick point on the spherical surface when kicking. The initial follow-through angle is different for different types of kicks. Specifically, when the user takes a place kick, performing follow-through from different directions with respect to the soccer ball will affect factors such as the direction of the force when the user kicks the ball. And the cross-section where each follow-through angle point 291 and the central axis are located forms an included angle with the cross-section where the guide line 21 in the ball initial direction is located, and this angle is used to guide the user's follow-through lateral angle.

[0074] In the above embodiment, the cross-section where the follow-through guideline is located is the cross-section where the follow-through angle point 291 and the central axis are located. After "accurately placing the ball", when standing right next to the cross-section where the follow-through guideline corresponding to the follow-through angle that the user should practice is located, the follow-through guideline appears as a straight line in the user's vision, can indicate the direction, and improve the user's recognition of the follow-through direction, thereby improving the training efficiency and training effect in the lateral direction of the user's follow-through.

[0075] It should be noted that when performing the "inside instep volley side spin", the player naturally runs along the second approach course 251B on a course that forms an angle γ with the initial ball direction. Among them, γ = 45°, and generally, after the support foot 1002 lands, the direction of the support foot 1002 and the kicking foot 1001 are approximately the same as the follow-through foot extension direction, forming an included angle of approximately 30° with the approach line. At this time, an angular difference β (β = 15°) is automatically formed between the initial direction of the first follow-through foot extension (lateral direction) and the initial ball direction (lateral direction).

[0076] At this time, when the cross-section where the follow-through guideline is located is arranged to form an included angle of 15 degrees with the cross-section where the guideline 21 in the initial ball direction is located, when the kicking foot 1001 is kicked out at the inner part of the middle metatarsal bone on the positive instep to the first side spin point a243a, the initial direction of the actual follow-through foot extension line (lateral direction) naturally becomes parallel to the first follow-through guideline 29a of 15° on the spherical surface, and the soccer ball 100 generates a stable side spin and accurately jumps forward along the direction of the guideline in the initial ball direction. By observing whether the initial direction of the actual first follow-through trajectory 292a in the lateral direction is parallel to the first follow-through guideline 29a on the spherical surface, it helps to determine whether the actual follow-through (lateral direction) angle is correct, and the user can standardize the motion posture to obtain a natural and stable follow-through foot extension (lateral direction) angle through practice.

[0077] Also, observe whether the rotation amount of each sphere generated according to the follow-through angle is appropriate and effective (the appropriate left / right displacement amount of the side spin arc ball for generating the soccer ball 100 at a remote location). For example, by kicking the first side spin point b243b with a 60-degree approach run, an actual second follow-through trajectory 292b that is parallel to the second follow-through guideline 29b in the figure and forms a 30-degree included angle in the lateral direction with respect to the ball's initial direction is generated. At this time, the left / right displacement amounts generated far away when the soccer ball 100 is kicked with a 45-degree approach run and a 15-degree lateral follow-through foot placement are different. Through the above adjustments and tests, the user can find the appropriate approach angle and follow-through angle.

[0078] Referring to FIG. 3, as an option, the marked area 2 further includes a penalty kick guide mark 26. The penalty kick guide mark 26 includes a first penalty kick angle point 261, a second penalty kick angle point 262, a third penalty kick angle point 263, and a fourth penalty kick angle point 264 for instructing the user 1000 to aim at the four corners of the goal when taking a penalty kick. The place kick includes a penalty kick kicked from the penalty mark in front of the goal. The relative positions of the first penalty kick angle point 261, the second penalty kick angle point 262, the third penalty kick angle point 263, and the fourth penalty kick angle point 264 with respect to the center of the sphere 1 of the ball can each correspond to the four corners of the goal. The user 1000 repeatedly practices the action of kicking towards the goal corner position during the penalty kick to improve the training efficiency and training effect.

[0079] Referring to FIG. 3, as an option, the first penalty kick angle point 261 and the second penalty kick angle point 262 are located in the horizontal center line section 231. They are distributed with a distance between the first penalty kick angle point 261 and the second penalty kick angle point 262. In use, the guide line 21 in the ball initial direction is directed towards the center of the goal, and the distance between the first penalty kick angle point 261 and the guide line 21 in the ball initial direction is equal to the distance between the second penalty kick angle point 262 and the guide line 21 in the ball initial direction. The included angle of the first penalty kick angle point 261 and the second penalty kick angle point 262 with respect to the center of the sphere 1 of the sphere 1 is 35° - 39°. The cross-section where the third penalty kick angle point 263, the first penalty kick angle point 261 and the center of the sphere 1 are located is perpendicular to the horizontal center line section 231. The angle of the third penalty kick angle point 263 and the first penalty kick angle point 261 with respect to the center of the sphere 1 of the sphere 1 is 10.4° - 12.4°. The cross-section where the fourth penalty kick angle point 264, the second penalty kick angle point 262 and the center of the sphere 1 are located is perpendicular to the horizontal center line section 231. The angle of the fourth penalty kick angle point 264 and the second penalty kick angle point 262 with respect to the center of the sphere 1 of the sphere 1 is 10.4° - 12.4°. When the cross-section where the guide line 21 in the ball initial direction is located and the cross-section where the ball placement line 22 is located are both perpendicular to the ground, both the third penalty kick angle point 263 and the fourth penalty kick angle point 264 are located below the horizontal center line section 231.

[0080] It can be converted based on the distance from the penalty mark to the goal (usually 12 yards, about 10.97 m), the size of the goal (usually 8 yards wide, about 7.32 m, and 8 feet high, about 2.44 m), and the size of the ball 1 (taking a standard ball of size 5 as an example, with a diameter of about 22 cm). After "accurately placing the ball", the included angles formed by the lower left corner and the lower right corner of the goal with respect to the penalty mark are about 36.9°, the included angle formed by the upper left corner of the goal with respect to the horizontal center line cross-section 231 is about 11.4°, and the included angle formed by the upper right corner of the goal with respect to the horizontal center line cross-section 231 is about 11.4°. Therefore, the relative positions of the first penalty kick angle point 261, the second penalty kick angle point 262, the third penalty kick angle point 263, and the fourth penalty kick angle point 264 with respect to the center of the ball 1 can approximately correspond to the four corners of the goal respectively, enabling the user 1000 to repeatedly practice the positions where the ball is kicked out to the goal corner during penalty kicks, and improving the training efficiency and training effect.

[0081] Referring to FIG. 3, as an option, after "accurately placing the ball", when the first penalty kick angle point 261 is located at the kick reference point 241 provided on the horizontal center line cross-section 231 of the ball 1, the first penalty kick angle point 261 corresponds to the lower right corner of the goal, the second penalty kick angle point 262 corresponds to the lower left corner of the goal, the third penalty kick angle point 263 corresponds to the upper right corner of the goal, and the fourth penalty kick angle point 264 corresponds to the upper left corner of the goal.

[0082] As an example, the included angles of the first penalty kick angle point 261 and the second penalty kick angle point 262 with respect to the center of the sphere 1 of the sphere are 35°, 36°, 36.9°, 37°, 37.5°, 38°, 38.5°, 39°, etc., and the included angle of the third penalty kick angle point 263 and the first penalty kick angle point 261 with respect to the center of the sphere 1 of the sphere is 10.4°, 11°, 11.4°, 12°, 12.4°, etc., and the included angle of the fourth penalty kick angle point 264 and the second penalty kick angle point 262 with respect to the center of the sphere 1 of the sphere is 10.4°, 11°, 11.4°, 12°, 12.4°, etc.

[0083] Referring to FIG. 3, as an option, the area formed by connecting the first penalty kick angle point 261, the second penalty kick angle point 262, the fourth penalty kick angle point 264, and the third penalty kick angle point 263 in sequence is the range where the user 1000 aims at the kick contact point within the goal range when taking a penalty kick. After connecting the first penalty kick angle point 261, the second penalty kick angle point 262, the fourth penalty kick angle point 264, and the third penalty kick angle point 263, since the area within the range of the four points corresponds to the goal range, the user 1000 repeatedly practices the action of kicking to a position within the goal range during a penalty kick, improving the training efficiency and training effect.

[0084] The penalty kick guide mark 26 further includes a first simulation goal line 265, a second simulation goal line 266, a third simulation goal line 267, and a fourth simulation goal line 268. Both ends of the first simulation goal line 265 connect a first penalty kick angle point 261 and a third penalty kick angle point 263 respectively. The cross-section where the first simulation goal line 265 is located overlaps with the cross-section where the first penalty kick angle point 261 and the central axis 232 are located. Both ends of the second simulation goal line 266 connect a second penalty kick angle point 262 and a fourth penalty kick angle point 264 respectively. The cross-section where the second simulation goal line 266 is located overlaps with the cross-section where the second penalty kick angle point 262 and the central axis 232 are located. Both ends of the third simulation goal line 267 connect the third penalty kick angle point 263 and the fourth penalty kick angle point 264 respectively. Both ends of the fourth simulation goal line 268 connect the first penalty kick angle point 261 and the second penalty kick angle point 262 respectively. The cross-section where the fourth simulation goal line 268 is located overlaps with the horizontal center line cross-section 231.

[0085] Referring to FIGS. 1 and 3, optionally, a plurality of groups of the guide line 21 in the ball initial direction, the ball placement line 22, and the approach guide mark 25 are provided. The kick point set 24 is related to the position of one group, and the penalty kick guide mark 26 is related to the position of another group. Optionally, the kick point set 24 and the penalty kick guide mark 26 may be related to the positions of the guide line 21 in the ball initial direction, the ball placement line 22, and the approach guide mark 25 of the same group.

[0086] Optionally, the first penalty kick angle point 261, the second penalty kick angle point 262, the third penalty kick angle point 263, and the fourth penalty kick angle point 264 include, but are not limited to, the intersection points of two lines, circular points, elliptical points, triangular points, square points, polygonal points, or irregular-shaped points, and may be solid points or hollow points. The first simulation goal line 265, the second simulation goal line 266, the third simulation goal line 267, and the fourth simulation goal line 268 may be continuous lines or discontinuous lines such as dashed lines, dot-dash lines, and double dot-dash lines.

[0087] Referring to FIGS. 2 and 4, optionally, the marking area 2 further includes a drawing auxiliary guide mark 27. The drawing auxiliary guide mark 27 includes a kick drawing auxiliary line 271. When the cross-section where the guide line 21 in the initial ball direction is located and the cross-section where the ball placement line 22 is located are both perpendicular to the ground, the cross-section where the kick drawing auxiliary line 271 is located is perpendicular to the ground.

[0088] After "accurately placing the ball", the cross-section where the kick drawing auxiliary line 271 is located also becomes perpendicular to the ground, and the kick drawing auxiliary line 271 can be seen as "a straight line" in the vision of the user 1000 and can also indicate the set target kick direction. The user 1000 can, if necessary, draw his own points or lines, such as a kick point set 24, a running-up guide mark 25, a penalty kick guide mark 26, etc., in the vicinity based on the intersection position (kick center point) of the kick drawing auxiliary line 271 and the horizontal centerline cross-section 231. Then, the kick drawing auxiliary line 271 is used with reference to the guide line 21 in the initial ball direction to explore a new kick effect. Thereby, the user 1000 can adjust the training goal according to his actual needs and improve the training efficiency and training effect.

[0089] As an option, one end of the kick drawing assist line 271 is connected to one end of the guide line 21 in the ball initial direction. The cross-section where the kick drawing assist line 271 is located overlaps with the cross-section where the guide line 21 in the ball initial direction is located. Referring to FIGS. 2 and 4, as an option, the drawing assist guide mark 27 further includes a drawing assist kick reference point 272. The drawing assist kick reference point 272 is located at the intersection of the kick drawing assist line 271 and the horizontal center line cross-section 231. The drawing assist kick reference point 272 serves as a reference for the kick reference point 241 provided on the horizontal center line cross-section 231.

[0090] It should be noted that there is a completely blank area outside the kick drawing assist line 271 near this intersection, and a non-PVC material that can be colored with an oil-based marker on the spherical material of this blank area is used. Auxiliary marks such as a kick point set, a running guide mark, or a follow-through guide mark for drawing various effects to be tested by oneself can be drawn in this blank area. As an option, when the cross-section where the guide line 21 in the ball initial direction is located and the cross-section where the ball placement line 22 is located are both perpendicular to the ground, and both the guide line 21 in the ball initial direction and the ball placement line 22 are located above the horizontal center line cross-section 231, the kick drawing assist line 271 is located below the horizontal center line cross-section 231.

[0091] As an option, the kick drawing assist line 271 may be a continuously extending line, or a discontinuously extending line such as a dashed line, a dot-dash line, or a double-dot-dash line. The drawing assist kick reference point 272 includes, but is not limited to, the intersection of two lines, a circular point, an elliptical point, a triangular point, a square point, a polygonal point, or an irregular point, and may be a solid point or a hollow point. Referring to FIGS. 1 and 2, as an option, the mark area 2 further includes a first ball placement point 281 and a second ball placement point 282. The first ball placement point 281 and the second ball placement point 282 are respectively located at both ends of the central axis 232.

[0092] After "correctly placing the ball", one of the first ball placement point 281 and the second ball placement point 282 must be located at the upper part of the sphere 1, and the other must be located at the lower part of the sphere 1. The user 1000 can assist in adjusting the placement posture of the sphere 1 according to the positions of the first ball placement point 281 and the second ball placement point 282 relative to the ground, or can swap them by reversing the positions of the first ball placement point 281 and the second ball placement point 282, so that most of the existing marks (other than the kick point set / penalty kick guide mark) on the spherical surface can be jointly used by left / right foot players, improving the accuracy and efficiency of the placement of the sphere 1 and helping to improve the training efficiency.

[0093] Optionally, the first ball placement point 281 includes, but is not limited to, the intersection of two lines, circular points, elliptical points, triangular points, square points, polygonal points, or irregular points, and may be a solid point or a hollow point. The second ball placement point 282 includes, but is not limited to, the intersection of lines, circular points, elliptical points, triangular points, square points, polygonal points, or irregular points, and may be a solid point or a hollow point.

[0094] Optionally, the guide line 21 in the initial direction of the ball, the ball placement line 22, the kick reference point 241, the top spin point 242, the first side spin point 243, the second side spin point 244, the approach guide mark 25, the penalty kick guide mark 26, the drawing assist guide mark 27, the first ball placement point 281, the second ball placement point 282, and the follow-through guide mark 29 may be set in the same color or may be set in different colors respectively. Optionally, the mark area 2 is painted on the sphere 1 with paint, pasted on the sphere 1 with sticker paper, or printed on the sphere 1 by printing.

[0095] The methods of painting with paint, pasting sticker paper, and printing can improve the speed and accuracy of installing the mark area 2 on the sphere 1 and can improve the production efficiency of the soccer ball 100. Referring to FIG. 6, as an option, the usage method of the soccer ball 100 includes ball placement, running-up preparation, kicking, and follow-through motion.

[0096] Ball placement: With reference to the visual guidelines 21 in the initial direction of the ball and the ball placement line 22, make the visual guidelines 21 in the initial direction of the ball "vertical" to the ground visually, and make the ball placement line 22 "vertical" to the ground visually. Then, rotate the sphere 1 to align the visual guidelines 21 in the initial direction of the ball with the set target position. Running-up preparation: According to the running-up angle to be practiced, select the corresponding running-up angle point 251 or the running-up guideline 252. From the sphere 1 in the direction indicated by the running-up angle point 251 or the running-up guideline 252 to the set distance away, in the user's 1000 vision, the cross-section where the running-up angle point 251 and the central axis 232 are located, that is, the running-up cross-section, is "a straight line" and forms an intersection line with the ground. In the user's 1000 vision, make the running-up guideline 252 "a straight line". Then, by moving the body left and right, select the application course parallel to the "intersection line between the ground and the running-up cross-section" as the final running-up course. As an example, referring to FIG. 2, the final running-up course corresponding to the running-up angle point 251a is the first running-up course 251A. Referring to FIG. 2, the first running-up course 251A is parallel to the running-up cross-section corresponding to the running-up angle point 251a. Kicking: Run up towards the sphere 1 aiming at any one of the kicking reference point 241, top spin point 242, first side spin point 243, second side spin point 244, and penalty kick guide mark 26 to be practiced, and finally hit the position on the sphere 1 aimed at with the kicking foot 1001.

[0097] In related technologies, when user 1000 practices penalty kicks, in order to form movement habits and muscle memory, at the moment of kicking, the distance relationship between the position for the kicking foot 1001 to touch the ball and the supporting foot 1002 of user 1000 is substantially constant. On the other hand, the position where the kicking foot 1001 of user 1000 touches the ball (for example, at the middle metatarsal bone on the top of the right instep) is relatively fixed at each practice at the position where the sphere 1 can be touched. With each practice, the position of the supporting foot 1002 relative to the sphere 1 changes. If the ball is contacted to maintain the designated position of the kicking foot 1001 or the sphere 1 is contacted at the designated position, the posture of user 1000's body has to be adjusted, the movement is distorted and it is impossible to touch the ball strongly and naturally, the quality of the initial ball direction becomes poor, and the training effect is reduced. Therefore, it is necessary to keep the position of the supporting foot 1002 of user 1000 relative to the sphere 1 constant with each practice.

[0098] Referring to FIG. 6, an embodiment of the present disclosure provides a training component 200. The training component 200 includes a supporting foot marker 210 and the soccer ball 100 described in the above embodiment. The supporting foot marker 210 includes a lateral positioning segment 2102, a first marking portion 2103 and a second marking portion 2104. The lateral positioning segment 2102 is arranged to be deformable under an external force and is perpendicular to the cross-section where the guideline 21 in the initial ball direction is located during use. The second marking portion 2104 is located at the end of the lateral positioning segment 2102. The first marking portion 2103 is provided on the lateral positioning segment 2102 and can slide freely on the lateral positioning segment 2102 to adjust the distance between the first marking portion 2103 and the second marking portion 2104, indicating the preset landing point on the ground of the supporting foot 1002 of user 1000 and constituting the positional relationship between the supporting foot 1002 and the soccer ball 100.

[0099] It should be noted that the lateral positioning segment 2102 is manufactured using a soft rope material that cannot be crushed by a soccer ball shoe, so that the lateral positioning segment 2102 will not be crushed by a soccer ball shoe after long-term use. For the soccer ball 100, the mathematical "orthographic projection" on the ground (the perspective as if looking down at the soccer ball 100 with eyes directly above it) is a perfect circle, and the orthographic projections of all points (including the kick points) on the spherical surface are at certain positions within the orthographic projection of this perfect circle (sphere 1) on the ground. The positional relationship of the orthographic projections between all points (such as the kick reference points 241b and 241a) on the spherical surface is also constant on the ground. Referring to FIG. 6, each structure shown in FIG. 6 is an orthographic projection diagram corresponding to each structure.

[0100] Since the actual kick point is at a height from the ground fixed directly above the "orthographic projection of the kick point" on the ground, the positional relationship between the actual kick point and its "orthographic projection of the kick point" on the ground is constant. By adjusting the two-dimensional positional relationship between the first marking portion 2103 on the ground (indicating the landing point of the support leg 1002) and the orthographic projection of a specific kick point on the ground, the positional relationship between the landing point of the support leg 1002 and the actual kick point can be adjusted.

[0101] First, place the support foot marker 210 at an approximate position beside the penalty mark on the ground, and hold it after making the horizontal positioning segment 2102 perpendicular to the ball initial direction course. After "accurately placing the ball", move the soccer ball forward or backward to set the distance from the support foot marker 210 to the second mark portion 2104 in the cross-section where the guide line 21 in the ball initial direction is located to the length of the radius of the sphere 1, and then hold it. Further, slide the first mark portion 2103 on the horizontal positioning segment 2102 to adjust the horizontal distance of the first mark portion 2103 from the cross-section where the guide line 21 in the ball initial direction is located. Finally, by moving the soccer ball 100 forward or backward with the cross-section where the guide line 21 in the ball initial direction is located as the central axis, determine the position where the horizontal positioning segment 2102 is orthogonally projected onto the ground with respect to the kick point set 24, adjust the positional relationship between the landing point of the support foot 1002 and the actual kick point, and indicate the "correct standing position" of the support foot 1002 of the user 1000, so that the user 1000 repeatedly practices the standing position of the support foot 1002 to improve the training effect. As an example, the first mark portion 2103 is for indicating the central portion on the inner side of the sole of the support foot 1002 of the user 1000 or the standing position on the inner side of the ankle.

[0102] Referring to FIG. 6, as an option, the support foot marker 210 further includes a length reference segment 2101. The length reference segment 2101 is connected to the horizontal positioning segment 2102 and is connected to the position of the second mark portion 2104. The length of the length reference segment 2101 is used as a dimension reference when adjusting the distance between the first mark portion 2103 and the second mark portion 2104, or as a reference for the perpendicular distance from the orthographic projection of the kick point set 24 in the extending direction of the horizontal positioning segment 2102. By folding and overlapping the length reference segment 2101 parallel to the horizontal positioning segment 2102 and sliding the first mark portion 2103 based on the length of the length reference segment 2101 to adjust its position, the position of the first mark portion 2103 relative to the second mark portion 2104 and the actual kick point can be quickly adjusted, which helps to improve the training efficiency.

[0103] Referring to FIG. 6, as an option, the length reference segment 2101 is configured to be deformable under an external force and is parallel to the plane in which the guideline 21 in the ball initial direction is located during use. When using the support foot marker 210, the length of the length reference segment 2101 is also used as a reference for the perpendicular distance between the extending direction of the horizontal positioning segment 2102 and the orthographic projection of the kick point set 24, and the relative position between the horizontal positioning segment 2102 and the kick point is positioned in the extending direction of the horizontal positioning segment 2102. As an option, the length reference segment 2101 and the horizontal positioning segment 2102 are rope-like structures that can be bent and deformed.

[0104] Referring to FIG. 6, as an option, the length reference segment 2101 and the horizontal positioning segment 2102 are integrally formed structures. The integrally formed length reference segment 2101 and horizontal positioning segment 2102 are easy to carry and place, the connection between the length reference segment 2101 and the horizontal positioning segment 2102 is stable, the possibility of separation by the user 1000 during training is reduced, and the service life is improved. As an option, the length reference segment 2101 and the horizontal positioning segment 2102 are separate structures, and each may be formed by a single rope or a combination of multiple ropes. Referring to FIG. 6, as an option, the length reference segment 2101 and the horizontal positioning segment 2102 form knots with ropes.

[0105] By forming a knot, it becomes easier to set the length of the length reference segment 2101 (for example, set to the length of the diameter of a standard No. 4 ball or a standard No. 5 ball), and it becomes easier to adjust the position of the orthographic projection with respect to the kick point set 24 as needed. Referring to FIG. 6, as an option, the first mark portion 2103 is fastened to the horizontal positioning segment 2102 by a knot or the like via another short rope. As an option, the first mark portion 2103 may be formed by the horizontal positioning segment 2102 itself forming a knot.

[0106] As an example, when a standard No. 5 ball with a circumference of 69 cm is adopted for the sphere 1, the vertical distance L1 between the extension line of the horizontal positioning segment 2102 and the orthographic projection of the kick point set 24 (in FIG. 6, the vertical distance between the extension line of the horizontal positioning segment 2102 and the orthographic projection of the kick reference point 241a) is about 2.2 cm (about 10% of the diameter of the sphere 1)), the distance L2 between the first mark portion 2103 and the second mark portion 2104 is about 15.4 cm (about 70% of the diameter of the sphere 1)), and the position of the first mark portion 2103 can be satisfied as follows: the vertical distance L1 between the extension line of the horizontal positioning segment 2102 and the orthographic projection of the kick point set 24 is about 2.2 cm, and in the direction perpendicular to the cross section where the guide line 21 in the ball initial direction is located, the horizontal distance between the orthographic projection of the first mark portion 2103 and the kick point set 24 is about 26.4 cm.

[0107] Referring to FIG. 6, as an option, the usage method of the training component 200 includes placing the rope, placing the ball, moving the ball, taking a running start, landing the supporting foot, and kicking. Placing the rope: First, after placing the supporting foot marker 210 at an approximate position beside the penalty mark on the ground, orient the horizontal positioning segment 2102 and the length reference segment 2101. Make the horizontal positioning segment 2102 perpendicular to the ball initial direction course, and then hold it. Make the length reference segment 2101 parallel to the ball initial direction, and then hold it. Adjust the position of the first mark portion 2103 and align the distance L2 between the first mark portion 2103 and the second mark portion 2104.

[0108] Placing the ball: Make the guide line 21 in the ball initial direction "perpendicular" to the ground, make the ball placement line 22 "perpendicular" to the ground, rotate the soccer ball on the spot, and align the guide line 21 in the ball initial direction with the preset kick target direction.

[0109] Moving the ball: By moving the soccer ball 100 horizontally to the left or right, make the vertical distance from the second mark portion 2104 of the supporting foot marker 210 in the cross-section where the guide line 21 in the ball initial direction is located equal to the length of the radius of the sphere 1, and then hold it (refer to the length reference segment 2101 and the circumferential line obtained by the orthographic projection of the sphere 1 on the ground at this time, and maintain the "in contact with each other" relationship). Finally, move the sphere 1 forward or backward in the direction indicated by the guide line 21 in the ball initial direction, determine the position where the extension line of the horizontal positioning segment 2102 is orthographically projected on the ground with respect to the kick point set 24, adjust the positional relationship between the landing point of the supporting foot 1002 and the actual kick point, and indicate the "correct standing position" of the supporting foot 1002 of the user 1000, so that the user 1000 repeatedly practices the standing position of the supporting foot 1002 to improve the training effect.

[0110] Approach: According to the approach angle to be practiced, select the corresponding approach angle point 251 or approach guide line 252, and from the sphere 1 in the direction indicated by the approach angle point 251 or approach guide line 252 to a set distance away, with the user's 1000 vision, the cross-section where the approach angle point 251 and the central axis 232 are located, that is, the approach cross-section, is "a straight line", forms an intersection line with the ground, and the approach guide line 252 is "a straight line" in the user's 1000 vision. Then, by moving the body left and right, select the application course parallel to the "intersection line between the ground and the approach cross-section" as the final approach course. As an example, referring to FIG. 2, the final approach course corresponding to the approach angle point 251a is the first approach course 251A. In FIG. 2, the first approach course 251A is parallel to the approach cross-section corresponding to the approach angle point 251a.

[0111] Landing of the supporting foot: After the approach, overlap a predetermined position on the sole of the supporting foot 1002 (for example, the central part inside the sole of the user's 1000 supporting foot 1002 or the position inside the ankle) with the position where the first mark part 2103 of the supporting foot marker 210 is provided on the ground. Kick: Aim at one of the kick reference point 241, top spin point 242, first side spin point 243, second side spin point 244 and penalty kick guide mark 26 to be practiced, and finally hit the position on the sphere 1 aimed at by the kicking foot 1001. In the present application, each type of "line" in the mark area 2 is a linear area with a certain width, and each type of "point" is a dot-shaped area with a certain diameter.

[0112] Also, those skilled in the art will recognize that the above embodiments are merely for explaining the present application and not for limiting the present application. Any appropriate changes or modifications added to the above embodiments within the scope of the essential spirit of the present application are all within the scope of the disclosure of the present application.

[0113] Industrial Applicability As described above, the present disclosure provides a soccer ball and training components, which play a role in guiding users. When a user conducts penalty kick training using the soccer ball of the present disclosure, by utilizing the guideline of the initial ball direction and the ball placement line, the user can quickly complete the ball placement, quickly aim at the kick target, quickly complete "accurately placing the ball", and accurately fix the positions of the respective kick reference points with respect to the ground, the spherical body, and the preset kick target. At this time, the accurate approach run and the flight direction and trajectory of the spherical body after the kick are also fixed in the same way. Based on the initial ball direction effect after their own kicks, users can judge whether they have accurately and effectively hit the desired kick contact point on the spherical body with their full set of movements, and can re-improve and fix each element of the movements, such as the approach angle, course, landing of the supporting foot, kick posture, follow-through movement, etc. After getting familiar with effective movements, users can form movement habits and muscle memories. Therefore, when kicking with a soccer ball without a marking area, the details of the above-mentioned proficient movements can also be applied, and the specific kick effects trained can be stably completed. Therefore, by practicing with the soccer ball provided with the above-mentioned marking area, the training efficiency and effect of penalty kicks can be improved.

Description of Reference Numerals

[0114] 100 Soccer ball 1 Spherical body 2 Marking area 21 Guideline of the initial ball direction 22 Ball placement line 231 Horizontal median cross-section 232 Central axis 24 Kick point set 241 Kick reference point 241a First kick reference point 241b Second kick reference point 241c Third kick reference point 242 Topspin point 243 First Side Spin Point 243a First Side Spin Point a 243b First Side Spin Point b 244 Second Side Spin Point 25 Approach Guide Mark 251 Approach Angle Point 251a First Approach Angle Point 251b Second Approach Angle Point 251A First Approach Course 251B Second Approach Course 252 Approach Guide Line 26 Penalty Kick Guide Mark 261 First Penalty Kick Angle Point 262 Second Penalty Kick Angle Point 263 Third Penalty Kick Angle Point 264 Fourth Penalty Kick Angle Point 265 First Simulation Goal Line 266 Second Simulation Goal Line 267 Third Simulation Goal Line 268 Fourth Simulation Goal Line 27 Drawing Assist Guide Mark 271 Kick Drawing Assist Line 272 Drawing Assist Kick Reference Point 281 First Ball Placement Point 282 Second Ball Placement Point 29 Follow-Through Guide Mark 291 Follow-Through Angle Point 291a First Follow-Through Angle Point 291b Second Follow-Through Angle Point 29a First Follow-Through Guide Line 29b Second Follow-Through Guide Line 292a First Follow-Through Trajectory 292b Second Follow-Through Trajectory 200 Training Component 210 Support Foot Marker 2101 Length Reference Segment 2102 Lateral Positioning Segment 2103 First Marking Portion 2104 Second Marking Portion 1000 User 1001 Kicking Foot 1002 Support Foot

Claims

Claim 1 A soccer ball having a sphere and a marking area provided on the surface of the sphere, the marking area including a guide line in the ball initial direction, a ball placement line, and a kick point set, each provided on the surface of the sphere, the guide line in the ball initial direction and the ball placement line are located in different cross-sections, each cross-section passing through the center of the sphere, the kick point set including kick reference points distributed at intervals, and the cross-section in which the distribution path of the plurality of kick reference points is located overlaps with the cross-section in which the guide line in the ball initial direction is located, and the horizontal center line cross-section is defined as the cross-section passing through the center of the sphere, when the cross-section in which the guide line in the ball initial direction is located and the cross-section in which the ball placement line is located are both perpendicular to the ground, the horizontal center line cross-section is parallel to the ground, and the plurality of kick reference points are distributed downward from the horizontal center line cross-section. A soccer ball characterized by this. Claim 2 The central axis is defined as the intersection line of the cross-section in which the guide line in the ball initial direction is located and the cross-section in which the ball placement line is located, the marking area further including a running guide mark, the running guide mark including a plurality of running angle points, and the included angles between different running angle points and the cross-section in which the central axis is located and the cross-section in which the guide line in the ball initial direction is located are different. The soccer ball according to claim 1, characterized by this. Claim 3 The running guide mark further includes a plurality of running guide lines, and each of the running angle points is provided on one of the running guide lines, when the cross-section in which the guide line in the ball initial direction is located and the cross-section in which the ball placement line is located are both perpendicular to the ground, the cross-section in which each of the running guide lines is located is perpendicular to the ground. The soccer ball according to claim 2, characterized by this. Claim 4 The central axis is defined as the intersection line of the cross-section where the guide line in the ball initial direction is located and the cross-section where the ball placement line is located. The mark area further includes a follow-through guide mark. The follow-through guide mark includes a plurality of follow-through angle points and a plurality of follow-through guide lines. The included angles between different follow-through angle points and the cross-section where the central axis is located and the cross-section where the guide line in the ball initial direction is located are different. Each follow-through angle point is provided on one follow-through guide line. When both the cross-section where the guide line in the ball initial direction is located and the cross-section where the ball placement line is located are perpendicular to the ground, the cross-section where each follow-through guide line is located is perpendicular to the ground. The soccer ball according to any one of claims 1 to 3, characterized in that.

5. The kick point set further includes a first side spin point. In a direction perpendicular to the cross-section where the guide line in the ball initial direction is located, the first side spin point is distributed at an interval from one of the plurality of kick reference points. The soccer ball according to any one of claims 1 to 3, characterized in that.

6. The kick point set further includes a top spin point. The top spin point is provided at an interval from the kick reference point. The top spin point is located in the cross-section where the plurality of kick reference points are located. When both the cross-section where the guide line in the ball initial direction is located and the cross-section where the ball placement line is located are perpendicular to the ground, the top spin point is located below one of the plurality of kick reference points. The soccer ball according to any one of claims 1 to 3, characterized in that.

7. The kick point set further includes a second side spin point. In a direction perpendicular to the cross-section where the guide line in the ball initial direction is located, the second side spin point is distributed at an interval from the top spin point. The soccer ball according to claim 6, characterized in that.

8. The mark area further includes a drawing assistance guide mark, the drawing assistance guide mark includes a kick drawing assistance line and a drawing assistance kick reference point, the drawing assistance kick reference point is located at the intersection of the kick drawing assistance line and the horizontal centerline cross-section, and has a complete blank area near the intersection. The complete blank area is separated from the kick drawing assistance line. When both the cross-section where the guide line in the initial ball direction is located and the cross-section where the ball placement line is located are perpendicular to the ground, the cross-section where the kick drawing assistance line is located is perpendicular to the ground. The soccer ball according to any one of claims 1 to 3, characterized in that

9. The central axis is defined as the intersection line of the cross-section where the guide line in the initial ball direction is located and the cross-section where the ball placement line is located. The mark area further includes a first ball placement point and a second ball placement point, and the first ball placement point and the second ball placement point are respectively located at both ends of the central axis. The soccer ball according to any one of claims 1 to 3, characterized in that

10. The mark area is characterized by painting the pigment on the sphere, or pasting a sticker on the sphere, or printing on the sphere by printing. The soccer ball according to any one of claims 1 to 3, characterized in that

11. The mark area further includes a penalty kick guide mark, the penalty kick guide mark includes a first penalty kick angle point, a second penalty kick angle point, a third penalty kick angle point, and a fourth penalty kick angle point, each of which is used to aim at the four corners of the goal when instructing the user to take a penalty kick. The area formed by connecting the first penalty kick angle point, the second penalty kick angle point, the fourth penalty kick angle point, and the third penalty kick angle point in sequence is used to indicate the range of the kick point within the goal area when instructing the user to take a penalty kick. The soccer ball according to any one of claims 1 to 3, characterized in that

12. A training component comprising a support foot marker and a soccer ball according to any one of claims 1 to 11, wherein the support foot marker includes a horizontal positioning segment, a first marking portion and a second marking portion, the horizontal positioning segment is perpendicular to the cross-section where the guide line in the initial direction of the ball is located during use, the second marking portion is located at the end of the horizontal positioning segment, the first marking portion is provided on the horizontal positioning segment and is movably provided on the horizontal positioning segment to adjust the distance between the first marking portion and the second marking portion, guide a preset landing point of the user's support foot on the ground, and constitute the positional relationship between the support foot and the soccer ball.

13. The support foot marker further includes a length reference segment, the length reference segment is connected to the horizontal positioning segment and is connected to the position of the second marking portion, the length of the length reference segment is used as a dimensional reference when adjusting the distance between the first marking portion and the second marking portion, and the horizontal positioning segment is made of a soft rope material. The training component according to claim 12, characterized in that.

14. A training component comprising a support foot marker and a soccer ball according to any one of claims 1 to 11, wherein the support foot marker includes a horizontal positioning segment, a first marking portion and a second marking portion, the second marking portion is located at the end of the horizontal positioning segment, the first marking portion is provided on the horizontal positioning segment and is movably provided on the horizontal positioning segment to adjust the distance between the first marking portion and the second marking portion, guide a preset landing point of the user's support foot on the ground, and constitute the positional relationship between the support foot and the soccer ball.

15. The support foot marker further includes a length reference segment, the length reference segment is connected to the horizontal positioning segment and is connected to the position of the second mark portion, and the length of the length reference segment is for serving as a dimensional reference when adjusting the distance between the first mark portion and the second mark portion, and the horizontal positioning segment is made of a soft rope material, the training component according to claim 14, characterized in that.

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