Billiard table that prevents balls from bouncing

Abstract

The present invention discloses a billiard table capable of preventing balls from bouncing, which includes a table bed and a cushion structure attached to the periphery of the table bed, and the cushion structure includes a steel cushion and a rubber strip attached to the inside of the steel cushion, and there is a height difference H between the top surface of the rubber strip and the top surface of the table bed, and the ratio of the height difference H to the diameter D of the ball is 0.68 to 0.74, and the ball contacts the rubber strip to form a collision point, and when a coordinate system is created with the center of the ball as the origin, a horizontal line passing through the origin as the horizontal axis, and a vertical line passing through the origin as the vertical axis, the collision point is higher than the center of the ball, and an angle of 2° to 8° is formed between the horizontal axis and the line connecting the origin and the collision point. The billiard table solves the problem that the ball is easily bounced up in the conventional billiard table, and improves the effectiveness of billiard games and the fun of entertainment.

Description

[Technical Field]

[0001] The present invention relates to the technical field of sports equipment, and more particularly to a billiard table capable of preventing ball bounce. [Background technology]

[0002] A billiard table primarily consists of a table bed, a rim (also called a cushion), and several legs. The legs are supported by the bottom of the table bed. The cushion is fixedly attached to the periphery of the table bed to form an area for the ball to roll. During the billiards game, the ball bounce phenomenon occurs with all conventional billiard table cushion structures. "Ball bounce" refers to the phenomenon in which, after a player strikes the cue ball, the cue ball or the target ball it hits bounces diagonally upward to varying degrees after hitting the rubber strip of the cushion. Even a slight ball bounce can affect the trajectory of the cue ball or target ball, affecting the player's game performance and entertainment enjoyment. Severe ball bounce can cause the ball to fly over the cushion and fall to the ground, potentially resulting in a loss of the player's chances. Ball bounce is also a very common problem in the world of billiards.

[0003] Therefore, in order to improve the game effect and entertainment value of billiards, it is urgent to solve the problem of billiard ball bouncing. Summary of the Invention [Problem to be solved by the invention]

[0004] In view of the above circumstances, the present invention provides a billiard table capable of preventing balls from bouncing, which solves the problem of balls bouncing in conventional billiard tables and improves the effectiveness of billiard games and the enjoyment of entertainment. [Means for solving the problem]

[0005] The present invention uses the following technical means: A billiard table capable of preventing balls from bouncing includes a table bed and a cushion structure attached to the periphery of the table bed, The cushion structure includes a steel cushion and a rubber strip attached to the inside of the steel cushion, and there is a height difference H between the top surface of the rubber strip and the top surface of the table bed, and the ratio of the height difference H to the diameter D of the ball is 0.68 to 0.74; When the ball comes into contact with the rubber strip to form a collision point, and a coordinate system is created with the center of the ball as the origin, a horizontal line passing through the origin as the horizontal axis, and a vertical line passing through the origin as the vertical axis, the collision point is higher than the center of the ball, and an angle of 2° to 8° is formed between the horizontal axis and the line connecting the origin and the collision point.

[0006] Furthermore, the cross-sectional shape of the steel cushion is rectangular, trapezoidal, S-shaped, ┐-shaped, L-shaped, T-shaped, U-shaped, ]-shaped, or [-shaped.

[0007] Furthermore, a fitting groove extending along the length of the surface of the steel cushion facing the rubber strip is provided, The rubber strip is provided with a protrusion that fits the shape of the fitting groove, The protrusion is fitted into the fitting groove.

[0008] Furthermore, the fitting groove is a dovetail groove, a rectangular groove, a T-shaped groove, or a trapezoidal groove.

[0009] Furthermore, the cross-sectional shape of the rubber strip is rectangular or ┐-shaped.

[0010] Furthermore, the steel cushion has a groove on the surface that abuts against the side of the table bed.

[0011] Furthermore, the groove is a rectangular groove.

[0012] Furthermore, the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

[0013] Furthermore, the width of the horizontally extending portion is 20 mm.

[0014] Furthermore, the ratio of the height difference H to the diameter D of the ball is 0.70; The angle between the horizontal axis and the line connecting the origin and the collision point is 5°. [Effects of the Invention]

[0015] 1. In the billiard table of the present invention, the height difference between the top surface of the rubber strip and the top surface of the table bed is set to 0.68 to 0.74 times the diameter of the ball by optimizing the ratio of the cushion height to the diameter of the ball to prevent the ball from bouncing. If the height difference H between the top surface of the rubber strip and the top surface of the table bed is less than 0.68 times the diameter of the ball, the ball will bounce. If the height difference between the top surface of the rubber strip and the top surface of the table bed is greater than 0.74 times the diameter of the ball, the elasticity of the cushion will be significantly reduced, affecting the rebound effect after the ball hits the rubber strip and reducing the height of the top end of the ball exposed from the cushion. As a result, the ball will be more likely to slip when the player hits it horizontally with the cue, which will affect the player's game performance and the public's interest in billiards as a form of entertainment.

[0016] 2. In the billiard table of the present invention, not only is the height of the cushion rubber strip optimized, but the position of the impact point between the ball and the cushion rubber strip is also ingeniously designed. If the center of the ball is taken as the origin, a horizontal line passing through the origin is taken as the horizontal axis, and a vertical line passing through the origin is taken as the vertical axis, an angle of 2° to 8° is formed between the horizontal axis and the line connecting the center of the ball and the impact point. By accurately designing the range of the angle, a downward force component is generated in the impact force generated when the ball hits the rubber strip, preventing the ball from bouncing when it hits the rubber strip.

[0017] 3. In the cushion structure of the billiard table of the present invention, a steel cushion is used, and a rubber strip is fixedly attached to the inside of the steel cushion, and the steel cushion is installed around the periphery of the table bed. As a result, the rigidity and strength of the steel cushion are greatly improved compared with the conventional oud cushion. When the ball hits the steel cushion, the deformation of the steel cushion is relatively small, the loss of mechanical energy when the ball hits the cushion is small, and the collision between the ball and the cushion is close to an elastic collision, and the rebound force of the cushion against the ball is greatly improved, thereby improving the player's sports experience and interest.

[0018] 4. In the billiard table cushion structure of the present invention, a fitting groove is provided on the side of the steel cushion where the rubber strip is attached, and a protrusion that fits the shape of the fitting groove is provided on the rubber strip, so the concave-convex fitting between the rubber strip and the steel cushion enables quick positioning and installation of the rubber strip and the steel cushion, which is advantageous for shortening the installation time of the cushion structure and improving installation efficiency.In addition, the concave-convex fitting between the fitting groove and the protrusion is advantageous for controlling the position of the rubber strip in the vertical direction, preventing the rubber strip from shifting due to loosening of the installation, reducing the downward deformation of the rubber strip, and further reducing the probability of ball bouncing.

[0019] 5. To ensure the installation accuracy of the cushion structure, the surface where the steel cushion and the table bed meet requires a relatively high surface precision. In the cushion structure of the present invention, a groove is provided on the surface of the steel cushion that meets the table bed, which significantly reduces the processing surface area of the steel cushion and does not require a relatively high processing precision within the groove. Therefore, providing the groove on the surface of the steel cushion improves the processing efficiency of the steel cushion and is beneficial to improving the flatness of the surface on this side, thereby improving the installation accuracy and quality of the billiard table. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a schematic diagram of the cushion structure and table bed attachment structure of the billiard table of the present invention. [Figure 2] 10 is a schematic diagram of another mounting structure of the cushion structure and table bed of the billiard table of the present invention. [Figure 3] 10 is a schematic diagram of another mounting structure of the cushion structure and table bed of the billiard table of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present invention will be described in detail below by way of examples with reference to the drawings.

[0022] Example 1 This embodiment provides a billiard table that can prevent balls from bouncing. The billiard table includes a table bed and a cushion structure attached to the periphery of the table bed. Figure 1 is a cross-sectional schematic diagram of the assembled table bed and cushion structure. The table bed is positioned horizontally and is supported by a plurality of legs (not shown).

[0023] The table-bed may consist of joined stone slabs 1, which are wrapped in a tablecloth 5. The cushion structure includes a steel cushion 4 and a rubber strip 2 attached to the inside of the steel cushion 4. As shown in the structure in FIG. 1, the steel cushion 4 is attached to the outer periphery of the stone slab 1 to block the ball 3. A rubber strip 2 is attached to the inside of the top of the steel cushion 4, and a handle 10 is attached to the outside of the steel cushion 4. For the aesthetic appearance of the billiard table, the rubber strip 2 and the outside of the table bed are also covered with a tablecloth 5. When the ball 3 rolls onto the cushion, it hits the rubber strip 2, generating a repulsive force. To prevent the ball 3 from falling when it reaches the cushion, there is a height difference H between the top surface of the rubber strip 2 and the top surface of the table bed. The ratio of the height difference H to the diameter D of the ball 3 is 0.68 to 0.74, for example, 0.68, 0.69, 0.70, 0.71, 0.72, 0.73, or 0.74. After being struck by the player, ball 3 comes into contact with rubber strip 2 as it rolls on the table bed, forming impact point J. If a coordinate system is created with the center of ball 3 as origin O, a horizontal line passing through origin O as horizontal axis X, and a vertical line passing through origin O as vertical axis Y, impact point J is higher than the center of ball 3, and an included angle a of 2° to 8° is formed between horizontal axis X and a line OJ connecting origin O and impact point J, and angle a may be 2°, 3°, 4°, 5°, 6°, 7°, or 8°.

[0024] In the billiard table, the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is set to 0.68 to 0.74 times the diameter D of the ball 3 to prevent the ball from bouncing by optimizing the ratio between the cushion height and the diameter of the ball. If the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is less than 0.68 times the diameter D of the ball 3, the ball will bounce. If the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is greater than 0.74 times the diameter D of the ball 3, the elasticity of the cushion will be significantly reduced, affecting the rebound effect of the ball 3 after hitting the rubber strip 2 and reducing the height of the top end of the ball 3 exposed from the cushion. As a result, the player's cue will be slippery when hitting the ball 3, making it difficult for the player to accurately control the force with which the ball 3 is hit and the trajectory of the ball 3 after being hit, which will affect the player's game performance and the public's interest in billiards as a form of entertainment.

[0025] In order to optimize the height of the rubber strip 2 of the billiard table and further improve the effectiveness of the billiard table in preventing ball bouncing, creative ingenuity has been applied to the position of the impact point J between the ball 3 and the rubber strip 2. That is, based on conventional billiards, when the ball 3 contacts the rubber strip 2, the included angle between the horizontal axis X and the straight line OJ connecting the origin O and the impact point J is set to 2° to 8°, and by accurately designing the range of the included angle, a diagonally downward force component is formed in the impact force generated when the ball 3 hits the rubber strip 2, preventing the ball 3 from bouncing up and avoiding the ball bouncing phenomenon when the ball 3 hits the rubber strip 2.

[0026] The ratio of the height difference H to the diameter D of the ball 3 of the billiard table and the angle J between the center of the ball 3 and the impact point J with the rubber strip 2 are applicable to various models and series of billiard tables. Once the diameter D of the ball 3 to be used in combination with the billiard table is determined, the cushion height range can be determined while ensuring the ball bounce prevention effect. Alternatively, once the cushion height is determined, a ball 3 that can prevent ball bounce depending on the cushion height can be selected and used. As a result, the ratio of the height difference H to the diameter D of the ball 3 ensures an excellent billiards game experience and entertainment enjoyment, providing a solid foundation for the further spread and promotion of billiards.

[0027] In a specific embodiment, the cross-sectional shape of the steel cushion 4 includes, but is not limited to, a rectangle, a trapezoid, a ┐ shape, an L shape, a T shape, a U shape, a ] shape, or a [ shape. In this embodiment, the ┐-shaped steel cushion 4 in FIG. 1 is used as an example, but the cross-sectional shape of the steel cushion 4 is not limited to the ┐ shape in FIG. 1 and may also be a rectangle as shown in FIG. 3. Since the steel cushion 4 can use cross sections of various shapes, it can enrich the appearance of the billiard table, avoid billiard tables with the same style, and attract consumers through various shapes, which increases the sales of billiard tables and increases the profits of billiard table manufacturers.

[0028] Example 2 This embodiment provides a billiard table that can prevent balls from bouncing. The billiard table includes a table bed and a cushion structure attached to the periphery of the table bed. Figure 2 is a cross-sectional schematic diagram of the assembled table bed and cushion structure. The table bed is positioned horizontally and is supported by a plurality of legs (not shown).

[0029] The table-bed may consist of joined stone slabs 1, which are wrapped in a tablecloth 5. The cushion structure includes a steel cushion 4 and a rubber strip 2 attached to the inside of the steel cushion 4. As shown in the structure of FIG. 2, the steel cushion 4 is attached to the outer periphery of the stone slab 1 to block the balls 3. The cross-sectional shape of the steel cushion 4 includes, but is not limited to, a rectangle, a trapezoid, a triangle, an L-shape, a T-shape, a square, a ]-shape, or a [-shape. In this embodiment, the triangle-shaped steel cushion 4 shown in FIG. 2 is described as an example, but the cross-sectional shape of the steel cushion 4 is not limited to the triangle-shape shown in FIG. 2. The cross-sectional shape of the steel cushion 4 may also be a rectangle as shown in FIG. 3. A rubber strip 2 is attached to the inside of the top of the steel cushion 4, and a handle 10 is attached to the outside of the steel cushion 4. To improve the appearance of the billiard table, the rubber strip 2 and the outside of the table bed are also covered with a tablecloth 5. When the ball 3 rolls and reaches the cushion, it hits the rubber strip 2, which generates a rebound force. To prevent the ball 3 from falling when it reaches the cushion, there is a height difference H between the top surface of the rubber strip 2 and the top surface of the table bed. The ratio of the height difference H to the diameter D of the ball 3 is 0.68 to 0.74, for example, 0.68, 0.69, 0.70, 0.71, 0.72, 0.73, or 0.74. As the ball 3 rolls on the table bed after being struck by the player, it comes into contact with the rubber strip 2 and forms a collision point J. If a coordinate system is created with the center of the ball 3 as the origin O, a horizontal line passing through the origin O as the horizontal axis X, and a vertical line passing through the origin O as the vertical axis Y, the collision point J is higher than the center of the ball 3, and an included angle a of 2° to 8° is formed between the horizontal axis X and a line OJ connecting the origin O and the collision point J, and the included angle a may be 2°, 3°, 4°, 5°, 6°, 7°, or 8°.

[0030] In the billiard table, the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is set to 0.68 to 0.74 times the diameter D of the ball 3 by optimizing the ratio of the cushion height to the diameter of the ball to prevent the ball from bouncing. If the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is less than 0.68 times the diameter D of the ball 3, the ball will bounce. If the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is greater than 0.74 times the diameter D of the ball 3, the elasticity of the cushion will be significantly reduced, affecting the rebound effect after the ball 3 hits the rubber strip 2. As a result, the player will not be able to accurately control the force with which he hits the ball 3 and the trajectory of the ball 3 after being hit, which will affect the player's game performance and the public's interest in billiards as a form of entertainment.

[0031] In order to optimize the height of the rubber strip 2 of the billiard table and further improve the effectiveness of the billiard table in preventing ball bouncing, creative ingenuity has been applied to the position of the impact point J between the ball 3 and the rubber strip 2. That is, based on conventional billiards, when the ball 3 contacts the rubber strip 2, the included angle between the horizontal axis X and the straight line OJ connecting the origin O and the impact point J is set to 2° to 8°, and by accurately designing the range of the included angle, a diagonally downward force component is formed in the impact force generated when the ball 3 hits the rubber strip 2, preventing the ball 3 from bouncing up and avoiding the ball bouncing phenomenon when the ball 3 hits the rubber strip 2.

[0032] The ratio of the height difference H to the diameter D of the ball 3 of the billiard table, and the angle J between the center of the ball 3 and the impact point J with the rubber strip 2, are applicable to various models and series of billiard tables. Once the diameter D of the ball 3 to be used in combination with the billiard table is determined, the cushion height range can be determined while ensuring the ball bounce prevention effect. Alternatively, once the cushion height is determined, a ball 3 that can prevent ball bounce depending on the cushion height can be selected and used. As a result, the ratio of the height difference H to the diameter D of the ball 3 ensures an excellent billiards game experience and entertainment enjoyment, providing a solid foundation for the further popularization and promotion of billiards.

[0033] As shown in Fig. 2, to facilitate attachment of the rubber strip 2 and the steel cushion 4, the surface of the steel cushion 4 facing the rubber strip 2 is provided with a mating groove extending along its length, and the surface of the rubber strip 2 facing the steel cushion 4 is provided with a protrusion 12 that fits into the mating groove. The mating groove may be a dovetail groove, a rectangular groove, a T-shaped groove, or a trapezoidal groove. Correspondingly, the protrusion 12 may be a dovetail protrusion, a rectangular protrusion, a T-shaped protrusion, or a trapezoidal protrusion.

[0034] As shown in Fig. 2, to facilitate attachment of the rubber strip 2 and the steel cushion 4, the surface of the steel cushion 4 facing the rubber strip 2 is provided with a mating groove extending along its length, and the surface of the rubber strip 2 facing the steel cushion 4 is provided with a protrusion 12 that fits into the mating groove. The mating groove may be a dovetail groove, a rectangular groove, a T-shaped groove, or a trapezoidal groove. Correspondingly, the protrusion 12 may be a dovetail protrusion, a rectangular protrusion, a T-shaped protrusion, or a trapezoidal protrusion.

[0035] In the cushion structure, a mating groove is formed on the surface of the steel cushion 4 on which the rubber strip 2 is attached, and a protrusion 12 that fits the shape of the mating groove is formed on the rubber strip 2, so the concave-convex fit between the rubber strip 2 and the steel cushion 4 enables quick positioning and installation of the rubber strip 2 and the steel cushion 4, which is advantageous for shortening the installation time of the cushion structure and improving installation efficiency. In addition, the concave-convex fit between the mating groove and the protrusion 12 is advantageous for regulating the position of the rubber strip 2 in the vertical direction, preventing displacement of the rubber strip 2 due to loosening of the installation, reducing the amount of downward deformation of the rubber strip 2, and further reducing the probability of the ball bouncing phenomenon occurring.

[0036] When the rubber strip 2 is fixedly attached to the steel cushion 4, the rubber strip 2 can be adhered to the steel cushion 4 with an adhesive. The cross-sectional shape of the rubber strip 2 may be rectangular or ┐-shaped.

[0037] As shown in Figure 2, when attaching the cushion to the periphery of the table bed, the cushion can be fixed to the side of the stone slab 1 of the table bed using bolts 7 and nuts 8. The steel cushion 4 has a through hole for inserting the bolt 7, and one end of the bolt 7 passes through the steel cushion 4 and the stone slab 1 and is screwed into a nut 8 fitted into the stone slab 1. The steel cushion 4 has a surface that abuts against the side of the stone slab 1, and a groove 6 is formed in the surface of the steel cushion 4 that abuts against the side of the table bed. The groove 6 may be rectangular.

[0038] Example 3 This embodiment provides a billiard table that can prevent balls from bouncing. The billiard table includes a table bed and a cushion structure attached to the periphery of the table bed. Figure 1 is a cross-sectional schematic diagram of the assembled table bed and cushion structure. The table bed is positioned horizontally and is supported by a plurality of legs (not shown).

[0039] The table-bed may consist of joined stone slabs 1, which are wrapped in a tablecloth 5. The cushion structure includes a steel cushion 4 and a rubber strip 2 attached to the inside of the steel cushion 4. As shown in the structure in FIG. 1, the steel cushion 4 is attached to the outer periphery of the stone slab 1 to block the ball 3. A rubber strip 2 is attached to the inside of the top of the steel cushion 4, and a handle 10 is attached to the outside of the steel cushion 4. To enhance the appearance of the billiard table, the rubber strip 2 and the outside of the table bed are also covered with a tablecloth 5. When the ball 3 rolls onto the cushion, it hits the rubber strip 2, generating a repulsive force. To prevent the ball 3 from falling when it reaches the cushion, there is a height difference H between the top surface of the rubber strip 2 and the top surface of the table bed. The ratio of the height difference H to the diameter D of the ball 3 is 0.68 to 0.74, for example, 0.68, 0.69, 0.70, 0.71, 0.72, 0.73, or 0.74. As ball 3 rolls on the table bed after being struck by the player, it comes into contact with rubber strip 2 and forms impact point J. If a coordinate system is created with the center of ball 3 as origin O, a horizontal line passing through origin O as horizontal axis X, and a vertical line passing through origin O as vertical axis Y, impact point J is higher than the center of ball 3, and an included angle a of 2° to 8° is formed between horizontal axis X and a line OJ connecting origin O and impact point J, and angle a may be 2°, 3°, 4°, 5°, 6°, 7°, or 8°.

[0040] In the billiard table, the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is set to 0.68 to 0.74 times the diameter D of the ball 3 by optimizing the ratio of the cushion height to the diameter of the ball to prevent the ball from bouncing. If the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is less than 0.68 times the diameter D of the ball 3, the ball will bounce. If the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is greater than 0.74 times the diameter D of the ball 3, the elasticity of the cushion will be significantly reduced, affecting the rebound effect after the ball 3 hits the rubber strip 2. As a result, the player will not be able to accurately control the force with which he hits the ball 3 and the trajectory of the ball 3 after being hit, which will affect the player's game performance and the public's interest in billiards as a form of entertainment.

[0041] In order to optimize the height of the rubber strip 2 of the billiard table and further improve the effectiveness of the billiard table in preventing ball bouncing, creative ingenuity has been applied to the position of the impact point J between the ball 3 and the rubber strip 2. That is, based on conventional billiards, when the ball 3 contacts the rubber strip 2, the included angle between the horizontal axis X and the straight line OJ connecting the origin O and the impact point J is set to 2° to 8°, and by accurately designing the range of the included angle, a diagonally downward force component is formed in the impact force generated when the ball 3 hits the rubber strip 2, preventing the ball 3 from bouncing up and avoiding the ball bouncing phenomenon when the ball 3 hits the rubber strip 2.

[0042] The ratio of the height difference H to the diameter D of the ball 3 of the billiard table and the angle J between the center of the ball 3 and the impact point J with the rubber strip 2 are applicable to various models and series of billiard tables. Once the diameter D of the ball 3 to be used in combination with the billiard table is determined, the cushion height range can be determined while ensuring the ball bounce prevention effect. Alternatively, once the cushion height is determined, a ball 3 that can prevent ball bounce depending on the cushion height can be selected and used. As a result, the ratio of the height difference H to the diameter D of the ball 3 ensures an excellent billiards game experience and entertainment enjoyment, providing a solid foundation for the further spread and promotion of billiards.

[0043] In a specific embodiment, the cross-sectional shape of the steel cushion 4 includes, but is not limited to, a rectangle, a trapezoid, a triangle, an L-shape, a T-shape, a square, a ]-shape, or a [-shape. In this embodiment, the cross-sectional shape of the steel cushion 4 in FIGS. 1 and 2 is described as an example, but the cross-sectional shape of the steel cushion 4 is not limited to the triangle shape in FIG. 1, and the cross-sectional shape of the steel cushion 4 may also be a rectangle as shown in FIG. 3.

[0044] As shown in Fig. 2, to facilitate attachment of the rubber strip 2 and the steel cushion 4, the surface of the steel cushion 4 facing the rubber strip 2 is provided with a mating groove extending along its length, and the surface of the rubber strip 2 facing the steel cushion 4 is provided with a protrusion 12 that fits into the mating groove. The mating groove may be a dovetail groove, a rectangular groove, a T-shaped groove, or a trapezoidal groove. Correspondingly, the protrusion 12 may be a dovetail protrusion, a rectangular protrusion, a T-shaped protrusion, or a trapezoidal protrusion.

[0045] In the cushion structure, a mating groove is provided on the surface of the steel cushion 4 on which the rubber strip 2 is attached, and a protrusion 12 that fits the shape of the mating groove is provided on the rubber strip 2, so the concave-convex fit between the rubber strip 2 and the steel cushion 4 enables quick positioning and installation of the rubber strip 2 and the steel cushion 4, which is advantageous for shortening the installation time of the cushion structure and improving installation efficiency. In addition, the concave-convex fit between the mating groove and the protrusion 12 is advantageous for regulating the position of the rubber strip 2 in the vertical direction, preventing displacement of the rubber strip 2 due to loosening of the installation, reducing the amount of downward deformation of the rubber strip 2, and further reducing the probability of the ball bouncing phenomenon occurring.

[0046] When the rubber strip 2 is fixedly attached to the steel cushion 4, the rubber strip 2 can be adhered to the steel cushion 4 with an adhesive. The cross-sectional shape of the rubber strip 2 may be rectangular or ┐-shaped.

[0047] As shown in Figure 1, when attaching the cushion to the periphery of the table bed, the cushion can be fixed to the side of the stone slab 1 of the table bed using bolts 7 and nuts 8. The steel cushion 4 has a through hole for inserting the bolt 7, and one end of the bolt 7 passes through the steel cushion 4 and the stone slab 1 and is screwed into a nut 8 fitted into the stone slab 1. The steel cushion 4 has a surface that abuts against the side of the stone slab 1, and a groove 6 is formed in the surface of the steel cushion 4 that abuts against the side of the table bed. The groove 6 may be rectangular.

[0048] In order to ensure the installation accuracy of the billiard table, the surface of the steel cushion 4 that abuts against the stone slab 1 needs to have a relatively high surface accuracy, and the abutting surface of the steel cushion 4 needs to be machined with high precision before installation. Grooves 6 are formed on the surface of the steel cushion 4 that abuts against the stone slab 1, and these grooves 6 significantly reduce the machined surface area of the steel cushion 4. Because the grooves 6 do not need to have a relatively high machining accuracy, the formation of the grooves 6 on the surface of the steel cushion 4 reduces the machined area of the steel cushion 4 and improves the machining efficiency and surface flatness of the steel cushion 4, thereby improving the installation accuracy and quality of the billiard table.

[0049] To improve the aesthetics of the billiard table, the stone slab 1 is wrapped and decorated with a tablecloth 5, and the cushion structure is wrapped and decorated with another tablecloth 5. The steel cushion 4 and rubber strip 2 are shielded by the tablecloth 5 that wraps around the cushion structure. When the rubber strip 2 and steel cushion 4 are wrapped around the tablecloth 5, the top end of the tablecloth 5 is fixedly attached to the steel cushion 4, and the bottom end is fixedly attached between the stone slab 1 and the steel cushion 4. As shown in FIG. 1 , the tablecloth 5 wraps around the inside of the cushion structure. The tablecloth 5 wraps around the rubber strip 2 inside. An opening is provided on the side of the steel cushion 4 that is away from the rubber strip 2. A bead 11 is pressed into the opening, pressing the top end of the tablecloth 5 against the steel cushion 4. A handle 10 on the outside of the steel cushion 4 presses the bead 11, further pressing the top end of the tablecloth 5. The bottom end of the steel cushion 4 is fixedly connected to the stone slab 1 by a bolt 7 and a nut 8. The nut 8 is fitted into an opening in the stone slab 1, and the bolt 7 passes through a through-hole in the bottom end of the steel cushion 4 and an opening in the stone slab 1 and is screwed into the nut 8, thereby fixing and connecting the stone slab 1 and the steel cushion 4 and at the same time pressing the bottom end of the tablecloth 5 between the stone slab 1 and the steel cushion 4.

[0050] Example 4 This embodiment provides a billiard table that can prevent balls from bouncing. The billiard table includes a table bed and a cushion structure attached to the periphery of the table bed. Figure 1 is a cross-sectional schematic diagram of the assembled table bed and cushion structure. The table bed is positioned horizontally and is supported by a plurality of legs (not shown).

[0051] The table-bed may consist of joined stone slabs 1, which are wrapped in a tablecloth 5. The cushion structure includes a steel cushion 4 and a rubber strip 2 attached to the inside of the steel cushion 4. As shown in the structure in FIG. 1, the steel cushion 4 is attached to the outer periphery of the stone slab 1 to block the ball 3. A rubber strip 2 is attached to the inside of the top of the steel cushion 4, and a handle 10 is attached to the outside of the steel cushion 4. To enhance the appearance of the billiard table, a tablecloth 5 is also wrapped around the rubber strip 2 and the table bed. When the ball 3 rolls onto the cushion, it hits the rubber strip 2, generating a repulsive force. To prevent the ball 3 from falling when it reaches the cushion, there is a height difference H between the top surface of the rubber strip 2 and the top surface of the table bed. The ratio of the height difference H to the diameter D of the ball 3 is 0.68 to 0.74, for example, 0.68, 0.69, 0.70, 0.71, 0.72, 0.73, or 0.74. As the ball 3 rolls on the table bed after being struck by the player, it comes into contact with the rubber strip 2 and forms a collision point J. If a coordinate system is created with the center of the ball 3 as the origin O, a horizontal line passing through the origin O as the horizontal axis X, and a vertical line passing through the origin O as the vertical axis Y, the collision point J is higher than the center of the ball 3, and an included angle a of 2° to 8° is formed between the horizontal axis X and a line OJ connecting the origin O and the collision point J, and the included angle a may be 2°, 3°, 4°, 5°, 6°, 7°, or 8°.

[0052] In the billiard table, the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is set to 0.68 to 0.74 times the diameter D of the ball 3 by optimizing the ratio of the cushion height to the diameter of the ball to prevent the ball from bouncing. If the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is less than 0.68 times the diameter D of the ball 3, the ball will bounce. If the height difference H between the top surface of the rubber strip 2 and the top surface of the table bed is greater than 0.74 times the diameter D of the ball 3, the elasticity of the cushion will be significantly reduced, affecting the rebound effect after the ball 3 hits the rubber strip 2. As a result, the player will not be able to accurately control the force with which he hits the ball 3 and the trajectory of the ball 3 after being hit, which will affect the player's game performance and the public's interest in billiards as a form of entertainment.

[0053] While optimizing the height of the rubber strip 2 of the billiard table, in order to further improve the billiard table's ball bounce prevention effect, creative ingenuity has been applied to the position of the impact point J between the ball 3 and the rubber strip 2. That is, based on conventional billiards, when the ball 3 contacts the rubber strip 2, the included angle between the horizontal axis X and the straight line OJ connecting the origin O and the impact point J is set to 2° to 8°, and by accurately designing the included angle range, an obliquely downward force component is formed in the impact force generated when the ball 3 hits the rubber strip 2, preventing the ball 3 from bouncing up and avoiding the ball bouncing phenomenon when the ball 3 hits the rubber strip 2.

[0054] The ratio of the height difference H to the diameter D of the ball 3 of the billiard table and the angle J between the center of the ball 3 and the impact point J with the rubber strip 2 are applicable to various models and series of billiard tables. Once the diameter D of the ball 3 to be used in combination with the billiard table is determined, the cushion height range can be determined while ensuring the ball bounce prevention effect. Alternatively, once the cushion height is determined, a ball 3 that can prevent ball bounce depending on the cushion height can be selected and used. As a result, the ratio of the height difference H to the diameter D of the ball 3 ensures an excellent billiards game experience and entertainment enjoyment, providing a solid foundation for the further spread and promotion of billiards.

[0055] In a specific embodiment, the cross-sectional shape of the steel cushion 4 includes, but is not limited to, a rectangle, a trapezoid, a triangle, an L-shape, a T-shape, a square, a ]-shape, or a [-shape. In this embodiment, the cross-sectional shape of the steel cushion 4 in FIGS. 1 and 2 is described as an example, but the cross-sectional shape of the steel cushion 4 is not limited to the triangle shape in FIG. 1, and the cross-sectional shape of the steel cushion 4 may also be a rectangle as shown in FIG. 3.

[0056] As shown in Fig. 2, to facilitate attachment of the rubber strip 2 and the steel cushion 4, the surface of the steel cushion 4 facing the rubber strip 2 is provided with a mating groove extending along its length, and the surface of the rubber strip 2 facing the steel cushion 4 is provided with a protrusion 12 that fits into the mating groove. The mating groove may be a dovetail groove, a rectangular groove, a T-shaped groove, or a trapezoidal groove. Correspondingly, the protrusion 12 may be a dovetail protrusion, a rectangular protrusion, a T-shaped protrusion, or a trapezoidal protrusion.

[0057] In the cushion structure, a mating groove is formed on the surface of the steel cushion 4 on which the rubber strip 2 is attached, and a protrusion 12 that fits the shape of the mating groove is formed on the rubber strip 2, so the concave-convex fit between the rubber strip 2 and the steel cushion 4 enables quick positioning and installation of the rubber strip 2 and the steel cushion 4, which is advantageous for shortening the installation time of the cushion structure and improving installation efficiency. In addition, the concave-convex fit between the mating groove and the protrusion 12 is advantageous for regulating the position of the rubber strip 2 in the vertical direction, preventing displacement of the rubber strip 2 due to loosening of the installation, reducing the amount of downward deformation of the rubber strip 2, and further reducing the probability of the ball bouncing phenomenon occurring.

[0058] When the rubber strip 2 is fixedly attached to the steel cushion 4, the rubber strip 2 can be adhered to the steel cushion 4 with an adhesive. The cross-sectional shape of the rubber strip 2 may be rectangular or ┐-shaped.

[0059] As shown in Figure 1, when attaching the cushion to the periphery of the table bed, the cushion can be fixed to the side of the stone slab 1 of the table bed using bolts 7 and nuts 8. The steel cushion 4 has a through hole for inserting the bolt 7, and one end of the bolt 7 passes through the steel cushion 4 and the stone slab 1 and is screwed into a nut 8 fitted into the stone slab 1. The steel cushion 4 has a surface that abuts against the side of the stone slab 1, and a groove 6 is formed in the surface of the steel cushion 4 that abuts against the side of the table bed. The groove 6 may be rectangular.

[0060] In order to ensure the installation accuracy of the billiard table, the surface of the steel cushion 4 that abuts against the stone slab 1 needs to have a relatively high surface accuracy, and the abutting surface of the steel cushion 4 needs to be machined with high precision before installation. Grooves 6 are formed on the surface of the steel cushion 4 that abuts against the stone slab 1, and these grooves 6 significantly reduce the machined surface area of the steel cushion 4. Because the grooves 6 do not need to have a relatively high machining accuracy, the formation of the grooves 6 on the surface of the steel cushion 4 reduces the machined area of the steel cushion 4 and improves the machining efficiency and surface flatness of the steel cushion 4, thereby improving the installation accuracy and quality of the billiard table.

[0061] To improve the aesthetics of the billiard table, the stone slab 1 is decorated by being wrapped in a tablecloth 5, and the cushion structure is decorated by being wrapped in another tablecloth 5. The steel cushion 4 and rubber strip 2 are shielded by the tablecloth 5 that wraps around the cushion structure. When the rubber strip 2 and steel cushion 4 are wrapped in the tablecloth 5, the top end of the tablecloth 5 is fixedly attached to the steel cushion 4, and the bottom end is fixedly attached between the stone slab 1 and the steel cushion 4. As shown in FIG. 1 , the tablecloth 5 is wrapped around the inside of the cushion structure. The tablecloth 5 wraps the rubber strip 2 inside. An opening is provided on the side of the steel cushion 4 that is away from the rubber strip 2. A bead 11 is pressed into the opening to press the top end of the tablecloth 5 against the steel cushion 4, and a handle 10 on the outside of the steel cushion 4 presses the bead 11 to further press the top end of the tablecloth 5. The bottom end of the steel cushion 4 is fixedly connected to the stone slab 1 by a bolt 7 and a nut 8. The nut 8 is fitted into an opening in the stone slab 1, and the bolt 7 passes through a through-hole in the bottom end of the steel cushion 4 and an opening in the stone slab 1 and is screwed into the nut 8, thereby fixing and connecting the stone slab 1 and the steel cushion 4 and at the same time pressing the bottom end of the tablecloth 5 between the stone slab 1 and the steel cushion 4.

[0062] When the cross-sectional shape of the steel cushion is a square, as shown in FIGS. 1 and 2, the steel cushion 4 has a horizontally extending portion 41 and a vertically extending portion 42. The width T1 of the horizontally extending portion 41 is the same as the width T2 of the vertically extending portion 42, and both the width T1 of the horizontally extending portion 41 and the width T2 of the vertically extending portion 42 are 20 mm. When the width T1 of the horizontally extending portion 41 and the width T2 of the vertically extending portion 42 are the same and both 20 mm, each billiard table can save 1% of the tablecloth for the table bed, 4% of the tablecloth for the cushion structure, 15% of the steel material for the steel cushion, and 1% of the stone material compared to the prior art, without affecting the ability of the steel cushion 4 to withstand the horizontal impact force of the ball 3. Since the applicant is a benchmark company in China's billiard table industry, our standards have become the industry standard. If the applicant's company produces 20,000 billiard tables per year, and there are 100,000 billiard tables produced nationwide in China each year, according to the material saving rate calculated above, the raw materials for at least 1,000 billiard tables can be saved each year, which is very helpful for our country's current green environmental protection strategy.

[0063] The above is only a preferred embodiment of the present invention, and does not limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of protection of the present invention.

[0064] (Addendum) (Appendix 1) A billiard table capable of preventing balls from bouncing includes a table bed and a cushion structure attached to the periphery of the table bed, The cushion structure includes a steel cushion and a rubber strip attached to the inside of the steel cushion, and there is a height difference H between the top surface of the rubber strip and the top surface of the table bed, and the ratio of the height difference H to the diameter D of the ball is 0.68 to 0.74; A billiard table characterized in that the ball comes into contact with the rubber strip to form a collision point, and when a coordinate system is created with the center of the ball as the origin, a horizontal line passing through the origin as the horizontal axis, and a vertical line passing through the origin as the vertical axis, the collision point is higher than the center of the ball, and an angle of 2° to 8° is formed between the horizontal axis and the line connecting the origin and the collision point.

[0065] (Appendix 2) The billiard table according to claim 1, wherein the cross-sectional shape of the steel cushion is rectangular, trapezoidal, S-shaped, ┐-shaped, L-shaped, T-shaped, U-shaped, ]-shaped, or [-shaped.

[0066] (Appendix 3) the ratio of the height difference H to the ball diameter D is 0.70; The billiard table according to Appendix 1, wherein the angle between the horizontal axis and the straight line connecting the origin and the collision point is 5°.

[0067] (Appendix 4) A fitting groove is provided on the surface of the steel cushion facing the rubber strip, and extends along the length of the surface. The rubber strip is provided with a protrusion that fits the shape of the fitting groove, 4. The billiard table according to any one of claims 1 to 3, wherein the protrusion is fitted into the fitting groove.

[0068] (Appendix 5) The billiard table according to Appendix 4, wherein the fitting groove is a dovetail groove, a rectangular groove, a T-shaped groove, or a trapezoidal groove.

[0069] (Appendix 6) The billiard table according to any one of appendices 1 to 3, wherein the cross-sectional shape of the rubber strip is rectangular, trapezoidal, or ┐-shaped.

[0070] (Appendix 7) The billiard table according to claim 4, wherein the cross-sectional shape of the rubber strip is rectangular, trapezoidal, or ┐.

[0071] (Appendix 8) The billiard table according to claim 5, wherein the cross-sectional shape of the rubber strip is rectangular, trapezoidal, or ┐-shaped.

[0072] (Appendix 9) The billiard table according to any one of appendices 1 to 3, wherein the steel cushion has a groove on the surface that abuts against the side of the table bed.

[0073] (Appendix 10) The billiard table according to claim 9, wherein the groove is a rectangular groove.

[0074] (Appendix 11) The billiard table according to claim 4, wherein the steel cushion has a groove on the surface that abuts against the side of the table bed.

[0075] (Appendix 12) 12. The billiard table according to claim 11, wherein the groove is a rectangular groove.

[0076] (Appendix 13) The billiard table according to claim 5, wherein the steel cushion has a groove on the surface that abuts against the side of the table bed.

[0077] (Appendix 14) The billiard table according to claim 13, wherein the groove is a rectangular groove.

[0078] (Appendix 15) The billiard table according to Appendix 6, wherein a groove is provided on the surface of the steel cushion that abuts against the side of the table bed.

[0079] (Appendix 16) The billiard table according to claim 15, wherein the groove is a rectangular groove.

[0080] (Appendix 17) The billiard table according to any one of appendices 1 to 3, characterized in that the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

[0081] (Appendix 18) 18. The billiard table according to claim 17, wherein the horizontally extending portion has a width of 20 mm.

[0082] (Appendix 19) The billiard table according to claim 4, wherein the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

[0083] (Appendix 20) 20. The billiard table according to claim 19, wherein the horizontally extending portion has a width of 20 mm.

[0084] (Appendix 21) The billiard table according to Appendix 5, wherein the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

[0085] (Appendix 22) 22. The billiard table according to claim 21, wherein the horizontally extending portion has a width of 20 mm.

[0086] (Appendix 23) The billiard table according to claim 6, wherein the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

[0087] (Appendix 24) 24. The billiard table according to claim 23, wherein the horizontally extending portion has a width of 20 mm.

[0088] (Appendix 25) The billiard table according to claim 9, wherein the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

[0089] (Appendix 26) 26. The billiard table according to claim 25, wherein the horizontally extending portion has a width of 20 mm.

[0090] (Appendix 27) The billiard table according to claim 10, wherein the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

[0091] (Appendix 28) 28. The billiard table according to claim 27, wherein the horizontally extending portion has a width of 20 mm. [Explanation of symbols]

[0092] 1 stone tablet 2 rubber strips 3 Ball 4 Steel Cushion 5. Tablecloth 6 Groove 7 volts 8 nuts 9 Support Bar 10 Handle 11 Bead 12 protrusions.

Claims

1. A billiard table capable of preventing balls from bouncing includes a table bed and a cushion structure attached to the periphery of the table bed, the cushion structure includes a steel cushion and a rubber strip attached to the inside of the steel cushion and provided above the table bed, a height difference H exists between a top surface of the rubber strip and a top surface of the table bed, and a ratio of the height difference H to a diameter D of a ball is 0.68 to 0.74; The billiard table is characterized in that the ball comes into contact with the lower part of the rubber strip to form a collision point, and when a coordinate system is created with the center of the ball as the origin, a horizontal line passing through the origin as the horizontal axis, and a vertical line passing through the origin as the vertical axis, the collision point is higher than the center of the ball, and an angle of 2° to 8° is formed between the horizontal axis and the line connecting the origin and the collision point.

2. 2. The billiard table according to claim 1, wherein the cross-sectional shape of the steel cushion is rectangular, trapezoidal, S-shaped, ┐-shaped, L-shaped, T-shaped, U-shaped, ]-shaped, or [-shaped.

3. the ratio of the height difference H to the diameter D of the ball is 0.70; 2. The billiard table according to claim 1, wherein the angle between the horizontal axis and the straight line connecting the origin and the collision point is 5 degrees.

4. A fitting groove is provided on the surface of the steel cushion facing the rubber strip, and extends along the length of the surface. The rubber strip is provided with a protrusion that fits the shape of the fitting groove, 4. The billiard table according to claim 1, wherein the projection is fitted into the fitting groove.

5. 5. The billiard table according to claim 4, wherein the fitting groove is a dovetail groove, a rectangular groove, a T-shaped groove, or a trapezoidal groove.

6. 4. The billiard table according to claim 1, wherein the cross-sectional shape of the rubber strip is rectangular, trapezoidal, or ┐-shaped.

7. 5. The billiard table according to claim 4, wherein the cross-sectional shape of the rubber strip is rectangular, trapezoidal, or square.

8. 6. The billiard table according to claim 5, wherein the cross-sectional shape of the rubber strip is rectangular, trapezoidal, or square.

9. 4. The billiard table according to claim 1, wherein the steel cushion has a groove formed on a surface thereof that abuts against a side surface of the table bed.

10. 10. The billiard table according to claim 9, wherein the groove is a rectangular groove.

11. 5. The billiard table according to claim 4, wherein the steel cushion has a groove on the surface thereof that abuts against the side surface of the table bed.

12. 12. The billiard table according to claim 11, wherein the groove is a rectangular groove.

13. 6. The billiard table according to claim 5, wherein the steel cushion has a groove formed on a surface thereof that abuts against a side surface of the table bed.

14. 14. The billiard table according to claim 13, wherein the groove is a rectangular groove.

15. 7. The billiard table according to claim 6, wherein a groove is provided on the surface of the steel cushion that abuts against the side surface of the table bed.

16. 16. The billiard table according to claim 15, wherein the groove is a rectangular groove.

17. 4. The billiard table according to claim 1, wherein the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

18. 18. The billiard table according to claim 17, wherein the width of the horizontally extending portion is 20 mm.

19. 5. The billiard table according to claim 4, wherein the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

20. 20. The billiard table according to claim 19, wherein the width of the horizontally extending portion is 20 mm.

21. 6. The billiard table according to claim 5, wherein the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

22. 22. The billiard table according to claim 21, wherein the width of the horizontally extending portion is 20 mm.

23. 7. The billiard table according to claim 6, wherein the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

24. 24. A billiard table according to claim 23, wherein the width of the horizontally extending portion is 20 mm.

25. 10. The billiard table according to claim 9, wherein the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

26. 26. A billiard table according to claim 25, wherein the width of the horizontally extending portion is 20 mm.

27. 11. The billiard table according to claim 10, wherein the steel cushion has a horizontally extending portion and a vertically extending portion, and the width of the horizontally extending portion is the same as the width of the vertically extending portion.

28. 28. A billiard table according to claim 27, wherein the horizontally extending portion has a width of 20 mm.

Images