Core material with supporting structure and racket

Abstract

A core material with a supporting structure is characterized in that a slot is formed in the middle of the core material, the slot penetrates through the two faces of the core material in the thickness direction, a reinforcing material sheet is arranged in the slot, the width of the reinforcing material sheet is larger than the thickness of the core material, and reserved parts are reserved on the two faces, penetrating through the slot, of the reinforcing material sheet. The folded edges are attached to the two faces of the core material. According to the core material with the supporting structure, the density and the hardness are adjusted by combining and matching the core materials with different materials and different hardness, and the glass fiber prepreg cloth and the carbon fiber prepreg cloth are added into the core material to form a'framework 'in the core material to reinforce the impact resistance of the core material, so that a better product effect is obtained, and the service life of a product is prolonged. And the racket which is better in strength and more durable is prepared from the middle core material, so that the quality of the product is improved, and a user can obtain better use experience.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ball game equipment, especially to the technical field of coarse plate composite fabric in beach bat, palla bat or snow field bat. BACKGROUND

[0002] With the rise of palla game, more and more people and sports enthusiasts are involved in palla game, and the manufacturing process of palla bat is continuously upgraded and improved to meet the use requirements of consumers, so as to provide better use experience.

[0003] Palla needs to meet the requirements of a certain degree of hitting elasticity and anti-hitting ability, and the requirement of light weight needs to be considered under the requirement of wear resistance and impact resistance, so that the manufacturing process and the selected material of the bat have higher requirements. When pursuing light weight requirement, reducing the density of the material will reduce the durability of the bat, and the supporting core material is easy to collapse under long-term heavy hitting. There are also reinforced structures to strengthen the wear resistance and impact resistance, such as the public patent CN202322998140. X shock-absorbing and wear-resistant palla bat, which discloses that the front and rear ends of the bat plate surface are provided with buffer surfaces, which can offset part of the impact force after the ball and the buffer surface collide, so that the impact force received by the plate surface is reduced, and the shock-absorbing effect is achieved.

[0004] However, according to the content recorded in the public literature, the buffer surface of the palla bat is provided with a buffer spring, which not only has a complex structure but also greatly increases the weight of the bat, which is not conducive to reducing the overall weight of the bat. SUMMARY

[0005] The utility model discloses a kind of core material with support structure and bat made by using the core material, utilize the density of core material combination of different materials, softness and hardness, and join glass fiber prepreg and carbon fiber prepreg in core material, become the "skeleton" of core material, strengthen the impact resistance of core material, so as to obtain better product effect, prolong the service life of product.

[0006] A kind of core material with support structure, slit is opened in the middle of the core material, the slit is through the thickness direction of the two sides of core material, reinforcing material sheet is provided in the slit, the width of the reinforcing material sheet is greater than the thickness of core material, the reinforcing material sheet is left in slit through two sides of the reserved part, is pressed into the folding edge of two sides of core material.

[0007] The reinforcing material sheet includes middle slit portion clamped in the slit and the folding edge of two sides, and the folding edge is perpendicular to the middle slit portion.

[0008] One or two reinforcing material sheets arranged in the same slit groove form a "冖" - shaped or "工" - shaped structure.

[0009] The slit groove is arranged along the longitudinal or transverse direction of the core material.

[0010] The slit groove penetrates the length or width direction of the core material, dividing the core material into several strip - shaped or sheet - shaped core material monomers.

[0011] The core material is made of foaming material, polyester fiber, ethylene - vinyl acetate copolymer (EVA), polypropylene, ethylene propylene diene monomer (EPDM), nitrile - butadiene rubber (NBR), or foamed polystyrene.

[0012] The reinforcing material sheet includes glass fiber prepreg and carbon fiber prepreg.

[0013] The reinforcing material sheets arranged on the same core material are glass fiber prepreg and / or carbon fiber prepreg.

[0014] The glass fiber prepreg is a cloth hot - pressed from glass fiber pre - impregnated with epoxy resin, and the carbon fiber prepreg is a cloth hot - pressed from carbon fiber material pre - impregnated with epoxy resin.

[0015] It includes a racket head and a racket handle. The racket head is formed by pressing a racket frame, a core material, and a face material. The racket frame and the racket handle are integrally formed. The core material with a support structure is die - cut into a shape and size conforming to the racket frame and is embedded in the racket frame.

[0016] Face materials are laminated on the upper and lower surfaces of the combined structure of the racket frame and the core material. The face materials are integrally formed to cover the racket handle part. On the racket handle part, an anti - slip grip material is further laid on the face material.

[0017] The core material with a support structure involved in the present utility model uses core materials with different materials and different hardnesses in combination to adjust density and soft hardness, and adds glass fiber prepreg and carbon fiber prepreg to the core material to become the "skeleton" in the core material, strengthening the impact - resistance performance of the core material, thereby obtaining better product effects and extending the service life of the product. And a racket with better strength and more durability is made with this core material, improving the quality of the product and enabling users to obtain a better use experience. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of Embodiment Ⅰ of the core material with a support structure involved in the present utility model;

[0019] Figure 2 It is a schematic diagram of a racket made of the core material of Embodiment Ⅰ involved in the present utility model;

[0020] Figure 3is a structural schematic view of the core material with the supporting structure according to Embodiment 2 of the present application.

[0021] Among them:

[0022] 10, core material; 20, slot;

[0023] 30, reinforcing material sheet; 31, middle slot part; 32, folded edge;

[0024] A, "R" type structure; B, "G" type structure;

[0025] 100, racket; 110, racket plate; 111, racket frame; 112, face material; 120, racket handle; 130, anti-skid grip material. DETAILED DESCRIPTION

[0026] The present application will be described in detail below with reference to the accompanying drawings and embodiments, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout the drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0028] Embodiment 1:

[0029] Please refer to the accompanying drawings Figure 1 Among them shows a specific implementation scheme of the core material with the supporting structure, in the core material 10 middle slot 20, the slot 20 through the thickness direction of the two sides of the core material, the slot 20 is provided with reinforcing material sheet 30, the width of the reinforcing material sheet 30 is greater than the thickness of the core material 10, the reinforcing material sheet 30 is left in the slot 20 through the two sides of the reserved part, which is pressed into the folded edge 32 adhering to the two sides of the core material 10.

[0030] The reinforcing material sheet 30 includes the middle slot part 31 clamped in the slot 20 and the folded edge 32 on both sides, and the folded edge 32 is perpendicular to the middle slot part 31.

[0031] One or two reinforcing material sheets 30 disposed in the same slit groove 20 form a "冖" shape or a "工" shape structure. When only one reinforcing material sheet 30 is placed in the slit groove 20, this side 32 is vertically pressed and folded to form a "冖" shape structure A, which is pressed on the upper and lower surfaces of the core material 10. When two reinforcing material sheets 30 are placed in the slit groove 20, the two are respectively folded in opposite directions to form a "工" shape structure B, which is pressed on the upper and lower surfaces of the core material 10.

[0032] The slit groove 20 provided in the core material 10 is provided along the longitudinal or transverse direction of the core material 10. The longitudinal direction can be considered as the direction along the racket handle, and the transverse direction is the direction perpendicular to the longitudinal direction.

[0033] The material of the core material 10 is made of foaming material, polyester fiber, ethylene-vinyl acetate copolymer (EVA), polypropylene, ethylene propylene diene monomer (EPDM), nitrile rubber (NBR) or foamed polystyrene.

[0034] The reinforcing material sheet 30 includes glass fiber prepreg and carbon fiber prepreg.

[0035] The reinforcing material sheets provided on the same core material 10 are glass fiber prepreg and / or carbon fiber prepreg. That is, the reinforcing material sheets on the same core material 10 can all be glass fiber prepreg, or all be carbon fiber prepreg, or a mixture of glass fiber prepreg and carbon fiber prepreg, or all of them are present.

[0036] The glass fiber prepreg is a cloth hot-pressed from glass fiber pre-impregnated with epoxy resin, and the carbon fiber prepreg is a cloth hot-pressed from carbon fiber material pre-impregnated with epoxy resin.

[0037] After the core material 10 with the above structure is made into a core material board with the shape and size of a racket, a racket with a core material having a support structure can be made using this core material board.

[0038] Please refer to the appendix Figure 2 :

[0039] The structure of the racket 100 is shown therein, including a racket head part 110 and a racket handle 120. The racket head part 110 is formed by pressing a racket frame 111, a core material 10 and a face material 112. The racket frame 111 and the racket handle 120 are integrally formed. The core material 10 with a support structure is die-cut into a shape and size conforming to the racket frame 111 and is embedded and provided in the racket frame 111.

[0040] The face material 112 is laminated on the upper and lower surfaces of the combined structure of the racket frame 111 and the core material 10, and the face material integrally covers the racket handle 120 part.

[0041] On the handle 120 part, the surface material 112 is also covered with anti-skid grip material 130.

[0042] Embodiment 2:

[0043] Please refer to the attached Figure 3 Wherein the second embodiment of the core material with support structure is shown, the slot 20 in the scheme is directly through the length or width direction of the core material 10, specifically whether the slot is arranged horizontally or vertically, if the slot 20 is through the core material, in fact, the core material is divided into several core material monomers in the form of strip or sheet. Then add reinforcing material to combine into a material with the shape of a racket.

[0044] Further, the core material is made of foamed material, polyester fiber, ethylene-vinyl acetate copolymer (EVA), polypropylene, ethylene-propylene-diene rubber, butadiene-acrylonitrile rubber or foamed polystyrene.

[0045] In this embodiment, since the core material has been divided into strips, different materials can be selected to be combined into one, such as foamed material 10A in the middle and polyester fiber 10B on both sides, and different core material materials can be combined to adjust the strength and quality according to the specific situation.

[0046] The core material with support structure relates to the utility model, and the core material with support structure is combined and matched by using core materials with different materials and different hardness to adjust the density, hardness, and the glass fiber prepreg and carbon fiber prepreg are added in the core material to become the “skeleton” of the core material and strengthen the impact resistance of the core material, so that better product effect is obtained, and the service life of the product is prolonged.

[0047] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model is disclosed as above, however, it is not used to limit the utility model, any skilled person in the art, without departing from the technical scheme of the utility model, when the above disclosed technical content is used to make some changes or modifications, equivalent embodiments with equivalent changes, but as long as it does not depart from the technical scheme of the utility model, according to the utility model technology, any simple modification, equivalent change and modification of the above embodiment belongs to the range of the utility model technical scheme.

Claims

1. A core material having a support structure, characterized by, A slit groove is formed in the middle of the core material, and the slit groove penetrates through both sides in the thickness direction of the core material. A reinforcing material sheet is provided in the slit groove. The width of the reinforcing material sheet is greater than the thickness of the core material. Reserved portions are left on both sides through which the slit groove of the reinforcing material sheet penetrates, and are pressed into flanges that fit the two sides of the core material.

2. The core material having a support structure according to claim 1, wherein The reinforcing material sheet includes a middle slit portion stuck in the slit groove and flanges on both sides. The flanges are perpendicular to the middle slit portion.

3. The core material having a support structure according to claim 2, wherein One or two reinforcing material sheets provided in the same slit groove form a "冖" shape or a "工" shape structure.

4. The core material having a support structure according to any one of claims 1 to 3, wherein The slit groove is arranged along the longitudinal or transverse direction of the core material.

5. The core material having a support structure according to any one of claims 1 to 3, wherein The slit groove penetrates through the length direction or the width direction of the core material, and divides the core material into several strip-shaped or sheet-shaped core material monomers.

6. The core material having a support structure according to claim 5, wherein The core material is made of foaming material, polyester fiber, ethylene-vinyl acetate copolymer, polypropylene, ethylene propylene diene monomer rubber, nitrile rubber or foamed polystyrene.

7. The core material with support structure according to claim 3, wherein The reinforcing material sheet includes a glass fiber prepreg and a carbon fiber prepreg; the glass fiber prepreg is a fabric hot-pressed from glass fiber pre-impregnated with epoxy resin, and the carbon fiber prepreg is a fabric hot-pressed from carbon fiber material pre-impregnated with epoxy resin.

8. The core material having a support structure according to claim 7, wherein The reinforcing material sheets provided on the same core material are glass fiber prepregs and / or carbon fiber prepregs.

9. A racket having a support structure core material, characterized by, It includes a racket head and a racket handle. The racket head is formed by pressing a racket frame, the core material as described in any one of claims 1-2, 6-8, and a face material. The racket frame and the racket handle are integrally formed. The core material with a support structure is die-cut into a shape and size that conforms to the racket frame and is embedded in the racket frame.

10. A racket having a support structure core material according to claim 9, wherein Face materials are pasted on the upper and lower surfaces of the combined structure of the racket frame and the core material. The face materials integrally cover the racket handle part. On the racket handle part, an anti-slip gripping material is further laid on the face materials.

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