A hockey stick

Abstract

The application relates to the technical field of sports equipment, and provides an ice hockey stick, which comprises a stick body, a plurality of weight-reducing grooves are arranged at intervals in the 45.2cm interval from the top of the stick body to the other end of the stick body, the weight-reducing grooves are all arranged along the inner circumferential side of the stick body, and the opening depth of the weight-reducing grooves is smaller than the wall thickness of the stick body. Based on the above, the light weight can be kept while the high strength is maintained, and the reliability and service life of the ice hockey stick are improved.

Description

Technical Field

[0001] This invention relates to the field of sports equipment technology, specifically to an ice hockey stick. Background Technology

[0002] In recent years, with the improvement of competitive levels, athletes have placed higher demands on the weight, strength, and feel of golf clubs. In some applications, weight reduction is achieved by thinning the overall wall thickness or using low-density resin on the basis of carbon fiber composite shafts; some high-end products use foamed core materials or local perforation to further reduce weight.

[0003] However, these methods all have obvious shortcomings: First, overall thinning of the wall thickness will significantly weaken the bending and impact resistance of the shaft, resulting in greater vibration and easy breakage when hitting the ball; Second, although foamed core material can reduce weight, it increases the complexity and cost of the process, and the bonding interface between the core material and the shell is easy to peel off, resulting in poor long-term reliability; Third, local drilling usually only sets a single large hole or a few holes, which limits the weight reduction, while the stress concentration phenomenon is serious, which shortens the service life.

[0004] Therefore, this application studies an ice hockey stick that can maintain high strength while being lightweight, thereby improving the reliability and service life of the ice hockey stick. Utility Model Content

[0005] In order to achieve both lightweight design and high strength, thereby improving the reliability and lifespan of hockey sticks, this application provides a hockey stick.

[0006] This application provides an ice hockey stick, which adopts the following technical solution: An ice hockey stick includes a stick body, wherein a plurality of weight-reducing grooves are provided at intervals along the inner wall of the stick body from the top to the other end in a range of 45.2 cm. The weight-reducing grooves are all opened around the inner periphery of the stick body, and the depth of the weight-reducing grooves is less than the wall thickness of the stick body.

[0007] By adopting the above technical solution, the weight-reducing grooves that are spaced apart and have a depth less than the thickness of the shaft wall can achieve a weight reduction of 1% to 2% without weakening the strength of the shaft. This solves the problem of reduced strength or high cost of foam materials due to overall thinning of the hockey stick. Furthermore, the grip area located near the top 45.2cm can utilize gravity distribution to improve reliability and service life.

[0008] Optionally, the weight-reducing grooves are spaced 15-30 times along the length of the rod.

[0009] By adopting the above technical solutions, the weight reduction is evenly distributed, avoiding local stress concentration, and further ensuring that the rod still maintains sufficient bending and impact resistance after weight reduction, thereby overcoming the shortcomings of existing drilling solutions that result in small weight reduction and easy breakage.

[0010] Optionally, the width of the weight-reducing groove is 2-6mm.

[0011] By adopting the above technical solution, both processing feasibility and weight reduction efficiency are taken into account, ensuring that the impact of the groove on the stiffness of the rod is minimized, while achieving considerable weight reduction.

[0012] Optionally, the depth of the weight-reducing groove is 30%-50% of the wall thickness of the rod.

[0013] By adopting the above technical solution, while ensuring that the remaining wall thickness is sufficient to withstand the impact of the ball, the weight reduction effect per unit length is maximized, overcoming the problem of balancing "weight reduction and strength" in the existing technology.

[0014] Optionally, the interval between adjacent weight-reducing grooves is 3-16 mm.

[0015] By adopting the above technical solutions, stress can be effectively dispersed and crack propagation can be suppressed, thereby further improving the service life of hockey sticks.

[0016] Optionally, the two ends of the weight-reducing groove in the cross-section of the rod are V-shaped, U-shaped, or arc-shaped structures.

[0017] By adopting the above technical solutions, the stress concentration factor is reduced and mold forming or CNC machining is facilitated, which not only improves manufacturing efficiency but also ensures that the negative impact of the weight reduction groove on the overall stiffness of the rod is minimized.

[0018] In summary, this application includes the following beneficial technical effects: 1. The weight-reducing grooves, which are spaced apart and have a depth less than the thickness of the shaft wall, can achieve a weight reduction of 1% to 2% without significantly weakening the shaft's strength. This solves the problem of reduced strength or high cost of foam materials in hockey sticks due to overall thinning. Furthermore, the grip area located near the top 45.2cm section utilizes gravity distribution to improve reliability and service life. 2. Setting intervals of 15-30 ensures even weight reduction distribution, avoids local stress concentration, and further ensures that the rod maintains sufficient bending and impact resistance after weight reduction, thereby overcoming the shortcomings of existing drilling solutions that result in small weight reduction and easy breakage. 3. The cross-sectional shape design reduces the stress concentration factor and facilitates mold forming or CNC machining, which improves manufacturing efficiency and ensures that the negative impact of the weight reduction groove on the overall stiffness of the rod is minimized. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0020] In the diagram: Figure 1 This is a schematic diagram of the structure of the hockey stick according to an embodiment of this application; Figure 2 This is a cross-sectional schematic diagram showing the weight-reducing groove in the hockey stick of an embodiment of this application; Figure 3 This is a partially enlarged cross-sectional view of the hockey stick in the embodiment of this application, showing that the weight-reducing groove is V-shaped; Figure 4 This is a partially enlarged cross-sectional view of the hockey stick in an embodiment of this application, showing that the weight-reducing groove is U-shaped; Figure 5 This is a partially enlarged cross-sectional view of the hockey stick in the embodiment of this application, showing that the weight-reducing groove is arc-shaped.

[0021] Reference numerals: 1. Rod body; 2. Weight reduction groove. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0023] This application discloses an ice hockey stick. (Refer to...) Figures 1-3 The hockey stick includes a shaft 1, which is 1524mm long excluding the blade tip. Several weight-reducing grooves 2 are spaced along a 45.2cm interval from the top of the shaft 1 to the other end on the inner wall of the shaft 1. These grooves are all located around the inner circumference of the shaft 1, and their depth is less than the wall thickness of the shaft 1. This spaced distribution of weight-reducing grooves, with a depth less than the wall thickness of the shaft 1, allows for a 1% to 2% weight reduction without significantly weakening the shaft 1. Furthermore, the area near the top 45.2cm section is the grip area, enabling better weight distribution and improving the player's playing experience.

[0024] In some embodiments, 15-30 weight-reducing grooves 2 are spaced apart along the length of the rod 1. This ensures uniform weight distribution, avoids localized stress concentration, and further ensures that the rod 1 maintains sufficient bending and impact resistance after weight reduction.

[0025] In some embodiments, the opening width of the weight-reducing groove 2 is 2-6mm. In this embodiment, the opening width of the weight-reducing groove 2 is 4mm, which takes into account both processing feasibility and weight reduction efficiency, ensuring that the influence of the groove on the stiffness of the rod 1 is minimized, while achieving considerable weight reduction.

[0026] In some embodiments, the depth of the weight-reducing groove 2 is 30%-50% of the wall thickness of the rod 1. In this embodiment, the depth of the weight-reducing groove 2 is 41% of the wall thickness of the rod 1, the wall thickness of the rod 1 is 1.7mm, and the depth of the weight-reducing groove 2 is 0.7mm.

[0027] In some embodiments, the interval between adjacent weight-reducing grooves 2 is 3-16 mm. In this embodiment, the interval between adjacent weight-reducing grooves 2 is 15.4 mm, and the interval is the distance between the weight-reducing grooves 2 along the axis of symmetry perpendicular to the length direction of the rod 1. This effectively disperses stress and inhibits crack propagation, further improving the service life of the hockey stick.

[0028] Reference Figures 3-5 In some embodiments, the two ends of the weight-reducing groove 2 in the cross-section of the rod 1 are V-shaped, U-shaped, or arc-shaped structures. This embodiment specifically adopts a V-shaped cross-section. This reduces the stress concentration factor and facilitates mold forming or CNC machining, thereby improving manufacturing efficiency while minimizing the negative impact of the weight-reducing groove 2 on the overall stiffness of the rod 1.

[0029] The implementation principle of an ice hockey stick according to an embodiment of this application is as follows: the weight-reducing grooves 2, which are spaced apart and have a depth less than the wall thickness of the stick body 1, can achieve a weight reduction of 1% to 2% without weakening the strength of the stick body 1. This solves the problem of reduced strength or high cost of foam material due to overall thinning of the ice hockey stick. Furthermore, the grip area is located near the top 45.2cm, which can utilize gravity distribution to improve reliability and service life.

[0030] The above are exemplary embodiments disclosed in this invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this invention as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this invention may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.

[0031] It should be understood that, as used herein, the singular form "a" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the associatedly listed items. The embodiment numbers disclosed above are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of different aspects of the invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. An ice hockey stick, characterized in that: The rod includes a pole body, and a number of weight-reducing grooves are provided at intervals along the inner wall of the pole body from the top of the pole body to the other end at a distance of 45.2 cm. The weight-reducing grooves are all opened around the inner periphery of the pole body, and the opening depth of the weight-reducing grooves is less than the wall thickness of the pole body.

2. The hockey stick according to claim 1, characterized in that: The weight-reducing grooves are arranged at intervals of 15-30 along the length of the rod.

3. The hockey stick according to claim 1, characterized in that: The width of the weight-reducing groove is 2-6mm.

4. A hockey stick according to claim 1, characterized in that: The depth of the weight-reducing groove is 30%-50% of the wall thickness of the rod.

5. A hockey stick according to claim 1, characterized in that: The interval between adjacent weight-reducing grooves is 3-16mm.

6. A hockey stick according to any one of claims 1-5, characterized in that: The weight-reducing grooves at both ends of the cross-section of the rod are V-shaped, U-shaped, or arc-shaped structures.

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