Composite material billiard cue forelimb with hole structure

Abstract

The utility model discloses a composite material billiard cue forelimb with a hole structure, which belongs to the technical field of billiard cues and is characterized in that the hole structure is arranged on the billiard cue forelimb made of composite materials, and the gravity center of the billiard cue forelimb is distributed at the position 420-460mm away from the small end of the billiard cue forelimb. By arranging the hole structure on the front limb of the billiard cue made of the composite material, the problem that the batting accuracy and the batting feeling of a player are affected by uneven weight distribution or improper gravity center position or uneven stress distribution of the front limb of the billiard cue made of the composite material can be effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of billiard cues, and in particular relates to a composite material billiard cue forelimb with a hole structure. Background Art

[0002] The commonly used billiard cues are usually composed of a forelimb and a back handle. The forelimb of the billiard cue directly hits the billiard ball, which has a crucial impact on the performance of the entire billiard cue. The traditional wooden billiard cue forelimb has a beautiful appearance and a comfortable feel. It is usually made of ash, maple and ebony. These three types of wood have high density and good elasticity. However, wooden cues are easily bent and deformed by the dampness and dryness of the weather, and the hardness and force transmission data of wooden cues are single and cannot be adjusted, and cannot be produced in a digital and standardized manner. In addition, the forelimb of the wooden billiard cue is easy to wear, the maintenance process is complicated, and the cost is high. In this context, compared with the wooden billiard cue forelimb, the forelimb of the billiard cue made of composite materials with better hardness, toughness and force transmission performance has also come into being. The forelimb of the billiard cue made of composite materials can realize the standardized and digital production of the forelimb of the billiard cue according to the determined raw material ratio.

[0003] However, the forelimb of the composite pool cue may have uneven weight distribution or inappropriate center of gravity or uneven stress distribution due to uneven material distribution or manufacturing process limitations, thereby affecting the player's hitting accuracy and hitting feeling. Moreover, the forelimb of the composite pool cue is usually made of materials with different properties, which makes the forelimb of the composite pool cue have some areas with weaker performance or less stress, which will also affect the player's hitting accuracy and hitting feeling. Utility Model Content

[0004] In view of this, the utility model provides a composite billiard cue forelimb with a hole structure, which can effectively improve the problem that the composite billiard cue forelimb affects the player's hitting accuracy and hitting feel due to uneven weight distribution, inappropriate center of gravity position or uneven stress distribution.

[0005] The utility model adopts the following technical solutions:

[0006] A composite material billiard cue forelimb with a hole structure. The hole structure is arranged on the composite material billiard cue forelimb, and the center of gravity of the billiard cue forelimb is distributed at a distance of 420 to 460 mm from the small end of the billiard cue forelimb.

[0007] Furthermore, the hole is coaxial with the front limb of the billiard cue.

[0008] Further, the hole is a three-section cylindrical hole;

[0009] The first cylindrical hole is near the small end of the forelimb of the billiard cue;

[0010] The second cylindrical hole is located between the first cylindrical hole and the third cylindrical hole;

[0011] The third cylindrical hole is close to the large end of the forelimb of the billiard cue, the three cylindrical holes are connected, and the hole diameter increases successively from the small end to the large end of the forelimb of the billiard cue.

[0012] Furthermore, three sections of cylindrical holes run through the front limb of the billiard cue.

[0013] Furthermore, taking the total mass of the raw materials for preparing the composite billiard cue forelimb as 100%, the composite material components and their mass fractions are as follows:

[0014] Glass fiber 40% to 65%, resin 34% to 59%, lubricant 0.1% to 0.2%, antioxidant 0.05% to 0.25%, light stabilizer 0.1% to 0.15%, and the balance is pigment;

[0015] The resin is at least one of polyhexamethylene adipamide, polymeta-xylylene adipamide and polycaprolactam; the lubricant is at least one of N,N'-ethylene bisstearamide and zinc stearate;

[0016] The antioxidant is a tert-butylphenol antioxidant;

[0017] The light stabilizer is an ultraviolet light absorber.

[0018] Furthermore, the length of the forelimb of the billiard cue is 750 mm, the diameter of the small end of the forelimb of the billiard cue is 12.8 mm, and the diameter of the large end of the forelimb of the billiard cue is 21.1 mm.

[0019] Furthermore, the length of the first cylindrical hole is 420 mm and the hole diameter is 8 mm, the length of the second cylindrical hole is 170 mm and the hole diameter is 11 mm, and the hole diameter of the third cylindrical hole is 15 mm.

[0020] Beneficial effects:

[0021] 1. A hole structure is arranged on the forelimb of the billiard cue made of composite material, and the center of gravity of the forelimb of the billiard cue is distributed at 420 to 460 mm away from the small end of the forelimb of the billiard cue.

[0022] Thus, by providing a hole structure on the forelimb of a billiard cue made of composite material, the problem that the forelimb of a composite billiard cue affects the accuracy and feel of a player due to uneven weight distribution, inappropriate center of gravity position, or uneven stress distribution can be effectively improved. Moreover, experiments have shown that the center of gravity of the forelimb of the billiard cue is distributed at 420 to 460 mm from the small end of the forelimb of the billiard cue, so that the center of gravity is adjusted closer to the grip position, and the center of gravity being in this range can better improve the stability and accuracy of the swing and enhance the feel of the shot.

[0023] 2. The hole is coaxial with the front limb of the billiard cue, which can more conveniently adjust the center of gravity of the front limb of the billiard cue.

[0024] 3. Three sections of cylindrical holes coaxial with the forelimb of the billiard cue are arranged on the forelimb of the billiard cue made of composite materials, wherein the first section of the cylindrical hole is close to the small end of the forelimb of the billiard cue, the second section of the cylindrical hole is located between the first section of the cylindrical hole and the third section of the cylindrical hole, and the third section of the cylindrical hole is close to the large end of the forelimb of the billiard cue. The three sections of the cylindrical holes are connected and the apertures increase in sequence from the small end to the large end of the forelimb of the billiard cue.

[0025] In this way, the three-stage cylindrical holes from small to large are arranged in sequence from the small end to the large end of the truncated cone-shaped billiard cue forelimb, the small end has the smallest hole diameter and the smallest weight reduction effect, while the large end has the largest hole diameter and the largest weight reduction effect. This design helps to achieve more refined weight distribution adjustment while maintaining the overall structural strength of the forelimb of the cue to adapt to the needs and preferences of different players; moreover, the three-stage cylindrical holes realize the progressive adjustment of the weight of the forelimb of the billiard cue, the adjustment of the center of gravity can be smoother and continuous, avoiding abrupt weight changes, and the center of gravity can be closer to the hand grip position, thereby improving the stability and accuracy of the swing; at the same time, the three-stage cylindrical holes can improve the stress distribution of the forelimb of the billiard cue, thereby enhancing the rigidity and strength of the shaft, so that the shaft has better anti-bending and anti-torsion capabilities when subjected to impact force, and improves the player's hitting accuracy and hitting feel; the design of the three-stage cylindrical holes also reduces the vibration of the forelimb of the billiard cue when it is subjected to impact force when hitting the table area, thereby improving the stability of the shaft and the accuracy of hitting.

[0026] 4. The three-section cylindrical hole runs through the forelimb of the billiard cue, which is convenient for processing the three-section holes on the forelimb of the billiard cue through a punching device after the forelimb of the billiard cue is manufactured. Compared with the closed cylindrical hole structure, it avoids the need to process the three-section holes through a mold in the process of manufacturing the forelimb of the billiard cue using composite materials, thereby reducing the difficulty of mold design.

[0027] 5. The total mass of the raw materials of the composite billiard cue forelimb is 100%, and the raw material components and their mass fractions are as follows: glass fiber 40% to 65%, resin 34% to 59%, lubricant 0.1% to 0.2%, antioxidant 0.05% to 0.25%, light stabilizer 0.1% to 0.15%, and the balance is pigment; wherein the resin is at least one of polyhexamethylene adipamide, poly(m-phenylene adipamide) and polycaprolactam; the lubricant is at least one of N,N'-ethylene bisstearamide and zinc stearate; the antioxidant is a tert-butylphenol antioxidant; and the light stabilizer is an ultraviolet light absorber.

[0028] In this way, the resin material has low water absorption, which can solve the defect that traditional wooden cues are easily bent and deformed due to thermal expansion and contraction due to the influence of hot and cold weather and humid and dry environment; by increasing or decreasing the percentage of glass fiber, the hardness and toughness of the forelimb of the billiard cue can be adjusted; as the percentage of glass fiber increases, the hardness and toughness of the forelimb of the billiard cue increase; by optimizing the mixing and adjusting the ratio of raw material components, the composite material can achieve adjustable hardness and force transmission performance of the cue, and realize standardized and digitized production of the forelimb of the composite material billiard cue according to the determined raw material ratio.

[0029] 6. The length of the forelimb of the billiard cue is 750mm, the diameter of the small end of the forelimb of the billiard cue is 12.8mm, and the diameter of the large end of the forelimb of the billiard cue is 21.1mm. The forelimb of the billiard cue of this specification avoids the forelimb of the billiard cue being too long or too short, thereby affecting the player's force when hitting the billiard ball, and can meet the needs and preferences of most players.

[0030] 7. On the premise that the length of the forelimb of the billiard cue is 750 mm, the diameter of the small end of the forelimb of the billiard cue is 12.8 mm, the diameter of the large end of the forelimb of the billiard cue is 21.1 mm, and the material is 40% to 65% glass fiber, 34% to 59% resin, 0.1% to 0.2% lubricant, 0.05% to 0.25% antioxidant, and 0.1% to 0.15% light stabilizer, the length of the first section of the cylindrical hole is 420 mm, the hole diameter is 8 mm, the length of the second section of the cylindrical hole is 170 mm, the hole diameter is 11 mm, and the hole diameter of the third section of the cylindrical hole is 15 mm. It has been proved through experiments that the size design of the cylindrical hole can make the center of gravity of the forelimb of the billiard cue be distributed at 420 to 460 mm from the small end of the forelimb of the billiard cue, so that the center of gravity can be adjusted to be closer to the grip position, so as to better improve the stability and accuracy of the swing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the forelimb structure of the billiard cue provided by the utility model when processing the first section of the cylindrical hole;

[0032] Figure 2 It is a schematic diagram of the structure of the forelimb of the billiard cue when processing the second cylindrical hole provided by the utility model;

[0033] Figure 3 It is a schematic diagram of the finished structure of the forelimb of the billiard cue provided by the utility model after the third cylindrical hole is processed;

[0034] Figure 4 This is a schematic diagram of the distribution range of the center of gravity position of the forelimb structure of the billiard cue provided by the utility model;

[0035] Among them, 1 is the front limb of the billiard cue; 2 is the first cylindrical hole; 3 is the second cylindrical hole; 4 is the third cylindrical hole; 5 is the center of gravity area. DETAILED DESCRIPTION

[0036] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0037] Embodiment 1:

[0038] Reference Figure 1 to Figure 4 This embodiment provides a composite material billiard cue forelimb 1 with a hole structure, wherein the hole structure is arranged on the composite material billiard cue forelimb 1, and the center of gravity of the billiard cue forelimb is distributed at 420-460 mm away from the small end of the billiard cue forelimb 1.

[0039] Thus, by providing a hole structure on the forelimb 1 of the billiard cue made of composite material, the problem that the forelimb 1 of the composite material billiard cue affects the accuracy and hitting feeling of the player due to uneven weight distribution, inappropriate center of gravity position or uneven stress distribution can be effectively improved. Moreover, it has been proved through experiments that the center of gravity of the forelimb 1 of the billiard cue is distributed at 420 to 460 mm from the small end of the forelimb 1 of the billiard cue, so that the center of gravity is adjusted to be closer to the grip position, and the center of gravity being in this range can better improve the stability and accuracy of the swing and enhance the hitting feeling.

[0040] The hole can be made coaxial with the billiard cue forelimb 1 to more conveniently adjust the center of gravity of the billiard cue forelimb 1. In this embodiment, the hole is a three-stage cylindrical hole; the first-stage cylindrical hole 2 is close to the small end of the billiard cue forelimb 1; the second-stage cylindrical hole 3 is located between the first-stage cylindrical hole 2 and the third-stage cylindrical hole 4; the third-stage cylindrical hole 4 is close to the large end of the billiard cue forelimb 1, and the three-stage cylindrical holes are connected and the hole diameter increases from the small end to the large end of the billiard cue forelimb 1.

[0041] In this way, the three-stage cylindrical holes from small to large are arranged in sequence from the small end to the large end of the truncated cone-shaped billiard cue forelimb 1, the small end has the smallest hole diameter and the smallest weight reduction effect, while the large end has the largest hole diameter and the largest weight reduction effect. This design helps to achieve more refined weight distribution adjustment while maintaining the overall structural strength of the cue forelimb 1 to adapt to the needs and preferences of different players; moreover, the three-stage cylindrical holes realize the progressive adjustment of the weight of the billiard cue forelimb 1, the adjustment of the center of gravity can be smoother and continuous, avoiding abrupt weight changes, and the center of gravity can be closer to the hand grip position, thereby improving the stability and accuracy of the swing; at the same time, the three-stage cylindrical holes can improve the stress distribution of the billiard cue forelimb 1 shaft, can enhance the rigidity and strength of the shaft, so that the shaft has better anti-bending and anti-torsion capabilities when subjected to impact force, and improves the player's hitting accuracy and hitting feel; the design of the three-stage cylindrical holes also reduces the vibration of the billiard cue forelimb 1 shaft when it is subjected to impact force when hitting the table area, thereby improving the stability of the shaft and the accuracy of hitting.

[0042] In this embodiment, three sections of cylindrical holes penetrate the billiard cue forelimb 1, so that the three sections of holes can be processed on the billiard cue forelimb 1 by a punching device after the billiard cue forelimb 1 is manufactured. Compared with a closed cylindrical hole structure, it is avoided that the three sections of holes need to be processed together by a mold during the process of manufacturing the billiard cue forelimb 1 using composite materials, thereby reducing the difficulty of mold design.

[0043] Embodiment 2:

[0044] On the basis of the first embodiment, this embodiment provides a composite material for preparing a billiard cue forelimb 1. The composition of the composite material can refer to the Chinese invention patent application with publication number CN 116200032 A. The specific scheme is as follows:

[0045] Taking the total mass of the raw materials of the composite material components as 100%, the raw material components and their mass fractions are as follows: glass fiber 40% to 65%, resin 34% to 59%, lubricant 0.1% to 0.2%, antioxidant 0.05% to 0.25%, light stabilizer 0.1% to 0.15%, and the balance is pigment; wherein the resin is at least one of polyhexamethylene adipamide, poly(m-phenylene adipamide) and polycaprolactam; the lubricant is at least one of N,N'-ethylene bisstearamide and zinc stearate; the antioxidant is a tert-butylphenol antioxidant; and the light stabilizer is an ultraviolet light absorber.

[0046] In this way, the resin material has low water absorption, which can solve the defect that the traditional wooden cue is easily bent and deformed due to thermal expansion and contraction due to the influence of hot and cold weather and humid and dry environment; the hardness and toughness of the billiard cue forelimb 1 can be adjusted by increasing or decreasing the percentage of glass fiber; as the percentage of glass fiber increases, the hardness and toughness of the billiard cue forelimb 1 increase; the composite material can achieve adjustable hardness and force transmission performance of the billiard cue forelimb 1 by optimizing the mixing and adjusting the ratio of raw material components, and realize standardized and digitized production of the composite material billiard cue forelimb 1 according to the determined raw material ratio.

[0047] Specifically, in the present embodiment, the length of the billiard cue forelimb 1 is 750 mm, the diameter of the small end of the billiard cue forelimb 1 is 12.8 mm, and the diameter of the large end of the billiard cue forelimb 1 is 21.1 mm. The billiard cue forelimb 1 of this specification avoids the billiard cue forelimb 1 being too long or too short, thereby affecting the player's force when hitting the billiard ball, and can meet the needs and preferences of most players.

[0048] More specifically, in the present embodiment, the length of the billiard cue forelimb 1 is 750 mm, the diameter of the small end of the billiard cue forelimb 1 is 12.8 mm, the diameter of the large end of the billiard cue forelimb 1 is 21.1 mm, and the material is 40% to 65% glass fiber, 34% to 59% resin, 0.1% to 0.2% lubricant, 0.05% to 0.25% antioxidant, and 0.1% to 0.15% light stabilizer. Under the premise, the length of the first section cylindrical hole 2 is 420 mm, the aperture is 8 mm, the length of the second section cylindrical hole 3 is 170 mm, the aperture is 11 mm, and the aperture of the third section cylindrical hole 4 is 15 mm. It has been proved through experiments that the size design of the cylindrical hole movement can make the center of gravity area 5 of the billiard cue forelimb 1 be within the range of 420 to 460 mm from the small end of the billiard cue forelimb 1, thereby adjusting the center of gravity to be closer to the hand grip position, thereby better improving the stability and accuracy of the swing.

[0049] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A composite material billiard cue forelimb with a hole structure, characterized in that: A hole structure is arranged on the forelimb of the billiard cue made of composite material, and the center of gravity of the forelimb of the billiard cue is distributed at 420-460 mm away from the small end of the forelimb of the billiard cue; The hole is coaxial with the forelimb of the billiard cue; The holes are arranged in sections.

2. The composite material billiard cue forelimb with a hole structure according to claim 1, characterized in that: The hole is a three-section cylindrical hole; The first cylindrical hole is near the small end of the forelimb of the billiard cue; The second cylindrical hole is located between the first cylindrical hole and the third cylindrical hole; The third cylindrical hole is close to the large end of the forelimb of the billiard cue, the three cylindrical holes are connected, and the hole diameter increases successively from the small end to the large end of the forelimb of the billiard cue.

3. The composite material billiard cue forelimb with a hole structure according to claim 2, characterized in that: Three sections of cylindrical holes run through the front limb of the billiard cue.

4. The composite material billiard cue forelimb with a hole structure according to claim 3, characterized in that: The length of the forelimb of the billiard cue stick is 750 mm, the diameter of the small end of the forelimb of the billiard cue stick is 12.8 mm, and the diameter of the large end of the forelimb of the billiard cue stick is 21.1 mm.

5. The composite material billiard cue forelimb with a hole structure according to claim 4, characterized in that: The length of the first cylindrical hole is 420 mm and the hole diameter is 8 mm, the length of the second cylindrical hole is 170 mm and the hole diameter is 11 mm, and the hole diameter of the third cylindrical hole is 15 mm.

Images