Composite sliding plate body, sliding plate and manufacturing method of sliding plate

Abstract

The invention provides a composite skateboard body, a skateboard and a manufacturing method of the skateboard. The composite sliding plate body comprises an inner-layer thin plate, a structure strengthening pipe, a structure strengthening leveling piece and a Kevlar strengthening piece, the inner-layer thin plate is provided with a containing groove, the structure strengthening pipe is located in the containing groove and connected with the inner-layer thin plate, the Kevlar strengthening piece is provided with a receding groove, and the receding groove and the structure strengthening pipe are arranged correspondingly. The structure strengthening and leveling sheet comprises a peripheral lap joint part and a strengthening and leveling part, the peripheral lap joint part is connected with the periphery of the strengthening and leveling part, and the peripheral lap joint part is further connected with the outer side of the Kevlar strengthening sheet; the tensile strength of the Kevlar reinforcing piece is larger than that of the structure reinforcing leveling piece, bending parts are formed at the two ends of the inner-layer thin plate correspondingly, the bending angle of each bending part ranges from 40 degrees to 50 degrees, and the Kevlar reinforcing piece is attached to the inner-layer thin plate in the length direction of the inner-layer thin plate so that the Kevlar reinforcing piece can abut against the bending parts; and the strengthening and leveling part is abutted against the structure strengthening pipe.

Description

Technical Field

[0001] The present disclosure relates to the technical field of skateboards, and in particular to a composite skateboard body, a skateboard, and a method for manufacturing the skateboard. Background Art

[0002] Skateboarding, an extreme sport brimming with creativity and freedom, combines skill, balance, and street culture, and is gaining popularity among the general public. Traditionally, skateboards are made of wood, such as maple or bamboo, which offers a certain degree of elasticity and structural strength. However, for heavier users, wooden skateboards are prone to cracking or bending when subjected to high-intensity impacts, indicating a lack of structural strength.

[0003] In order to solve the above problems, Chinese patent application number CN202411740692.3 discloses a skateboard body, a skateboard and a method for manufacturing a skateboard. The above-mentioned skateboard body includes an inner plate, a structural reinforcement embedded tube, a structural reinforcement sheet and a glue-fixing part. The inner plate is provided with an embedding area, the structural reinforcement embedded tube is arranged in the embedding area, the structural reinforcement sheet is attached to the inner plate, the glue-fixing part is filled in the embedding area, and the glue-fixing part is respectively connected to the structural reinforcement embedded tube and the structural reinforcement sheet.

[0004] However, the structural design of the above-mentioned skateboard has the following problems during use:

[0005] The above-mentioned skateboard has a structural reinforcement embedded tube embedded in the inner plate to strengthen the structural strength of the inner plate, and then a structural reinforcement sheet is attached to the inner plate. The structural reinforcement sheet is made of glass fiber, which has a certain elasticity. While further strengthening the structural strength, it can also modify the part where the structural reinforcement modification tube protrudes from the inner plate, so that the overall structure of the skateboard is smooth. However, the structural strength of the structural reinforcement sheet made of glass fiber is limited. When it comes to ultra-thin skateboards, since the structural strength of the skateboard body itself is relatively low, even if the structural reinforcement sheet and structural reinforcement embedded tube made of glass fiber are added, the risk of the skateboard cracking when subjected to high-intensity impact cannot be avoided, especially the parts at the bent ends of the skateboard. Since the bending range is large, the risk of cracking when subjected to stress is greater.

[0006] Therefore, there is an urgent need for a skateboard structure that can improve the structural strength of the ultra-thin plate and prevent the plate from cracking. Summary of the Invention

[0007] The purpose of the present disclosure is to overcome the deficiencies in the prior art and to provide a composite skateboard body, a skateboard, and a method for manufacturing the skateboard that can improve the structural strength of an ultra-thin board body and prevent the board body from cracking.

[0008] The purpose of this disclosure is achieved through the following technical solutions:

[0009] A composite skateboard body, comprising:

[0010] An inner thin plate, a structural reinforcement tube and a structural reinforcement flattening sheet, wherein the inner thin plate is provided with a receiving groove, the structural reinforcement tube is located in the receiving groove and connected to the inner thin plate,

[0011] The composite skateboard body further includes a Kevlar reinforcement sheet, the Kevlar reinforcement sheet having an air avoidance groove, the air avoidance groove being arranged corresponding to the structural reinforcement tube, the structural reinforcement flattening sheet including a peripheral overlap portion and a reinforcement flattening portion, the peripheral overlap portion being connected to the periphery of the reinforcement flattening portion, and the peripheral overlap portion being further connected to the outer side of the Kevlar reinforcement sheet;

[0012] The tensile strength of the Kevlar reinforcement sheet is greater than the tensile strength of the structural reinforcement and flattening sheet. A bending portion is formed at both ends of the inner thin plate, and the bending angle of the bending portion is 40°-50°. The accommodating groove is located between the two bending portions. The Kevlar reinforcement sheet is adhered to the inner thin plate along the length direction of the inner thin plate so that the Kevlar reinforcement sheet abuts against the bending portion, and the reinforcement and flattening portion abuts against the structural reinforcement tube.

[0013] In one embodiment, the number of the Kevlar reinforcement sheets is two, and the two Kevlar reinforcement sheets are respectively bonded to two side surfaces of the inner thin plate.

[0014] In one embodiment, the composite skateboard body further includes a flattening bottom sheet, wherein the flattening bottom sheet is bonded to one side of the inner thin plate, and the Kevlar reinforcement sheet is bonded to the other side of the inner thin plate.

[0015] In one embodiment, the area of ​​the air-avoiding groove is larger than the area of ​​the accommodating groove.

[0016] In one embodiment, the thickness of the inner thin plate is 4 mm to 6 mm; and / or,

[0017] The thickness of the Kevlar reinforcement sheet is 0.7 mm to 1.0 mm; and / or,

[0018] The thickness of the structural reinforcement and leveling sheet is 0.4 mm to 0.6 mm.

[0019] In one embodiment, the thickness of the peripheral overlapping portion is smaller than the thickness of the reinforcing flattening portion.

[0020] In one embodiment, the structural reinforcement tube is a carbon fiber tube, a glass fiber tube, or a metal tube; and / or,

[0021] The structural reinforcement and leveling sheet is a carbon fiber sheet or a glass fiber sheet.

[0022] In one embodiment, the tensile strength of the Kevlar reinforcement sheet is 3.4 GPa-3.6 GPa; the tensile strength of the structural reinforcement and leveling sheet is 1.5 GPa-2.0 GPa.

[0023] A skateboard comprises a panel and the composite skateboard body described in any one of the above embodiments, wherein the panel is bonded to a side of the Kevlar reinforcement sheet away from the inner thin plate.

[0024] A method for manufacturing a skateboard, for manufacturing the skateboard described in the above embodiment, comprising the following steps:

[0025] Performing a slotting operation on the inner thin plate to form a receiving groove on the inner thin plate;

[0026] embedding the structural reinforcement tube into the accommodating groove;

[0027] Performing a slotting operation on the Kevlar reinforcement sheet so as to form a void groove on the Kevlar reinforcement sheet;

[0028] Performing a thin-wall trimming process on the structural reinforcement and flattening sheet so that the structural reinforcement and flattening sheet is formed with a peripheral overlap portion and a reinforcement and flattening portion, wherein the thickness of the peripheral overlap portion is smaller than the thickness of the reinforcement and flattening portion;

[0029] Connecting the peripheral overlap portion to the outer side of the Kevlar reinforcement sheet so that the reinforced flattening portion is located within the air-avoiding groove;

[0030] The Kevlar reinforcement sheet is stacked on the inner thin plate so that the reinforcement and flattening portion covers the accommodating groove;

[0031] Applying glue to the Kevlar reinforcement sheet;

[0032] stacking the panel on the Kevlar reinforcement sheet;

[0033] The stacked plate structure is pressed at a temperature of 75°C to 85°C for 1 hour to 1.5 hours.

[0034] The plate structure is taken out and cooled to obtain a formed skateboard.

[0035] Compared with the prior art, the present disclosure has at least the following advantages:

[0036] 1. The composite skateboard body mentioned above has an inner thin plate with a receiving groove, and a structural reinforcement tube is located in the receiving groove and connected to the inner thin plate. The structural reinforcement tube strengthens the structural strength of the inner thin plate, and a Kevlar reinforcement sheet is provided on the outer side of the inner thin plate. The Kevlar reinforcement sheet is a high-performance synthetic fiber with excellent structural strength, compressive resistance and elasticity, and the Kevlar reinforcement sheet abuts against the bent portion of the inner thin plate. In this way, the Kevlar reinforcement sheet can enhance the overall structural strength of the skateboard body, especially for skateboards with ultra-thin plates. The overall strength of the plate body and the strength of the bent portion can be significantly enhanced, thereby avoiding the problem of cracks caused by high-intensity impact on the plate body.

[0037] 2. The Kevlar reinforcement sheet is provided with an air avoidance groove, and the structural reinforcement and leveling sheet includes a peripheral overlap portion and a reinforcement and leveling portion. The peripheral overlap portion is connected to the outer side of the Kevlar reinforcement sheet, and the reinforcement and leveling portion is located in the air avoidance groove. When the plate is pressed together, the Kevlar reinforcement sheet does not abut against the structural reinforcement tube, while the reinforcement and leveling portion abuts against the structural reinforcement tube. Since the tensile strength of the Kevlar reinforcement sheet is greater than the tensile strength of the structural reinforcement and leveling sheet, this avoids the problem of the Kevlar reinforcement sheet generating large stress on the structural reinforcement tube during pressing, causing damage to the structural reinforcement tube. At the same time, the reinforcement and leveling portion further strengthens the structural strength of the accommodating groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 This is a schematic structural diagram of a composite skateboard body in one embodiment;

[0040] Figure 2 for Figure 1 A schematic diagram of the structural reinforcement and leveling piece of the composite skateboard body;

[0041] Figure 3 Process flow chart for composite skateboard;

[0042] Figure 4 for Figure 1 Another structural schematic diagram of the composite skateboard body;

[0043] Figure 5 for Figure 1 A physical picture of the composite skateboard body combined with the Kevlar reinforcement sheet. DETAILED DESCRIPTION

[0044] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0045] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0047] The present disclosure provides a composite skateboard body, including an inner thin plate, a structural reinforcement tube, a structural reinforcement flattening sheet and a Kevlar reinforcement sheet, wherein the inner thin plate is provided with a receiving groove, the structural reinforcement tube is located in the receiving groove and is connected to the inner thin plate, the Kevlar reinforcement sheet is provided with an air avoidance groove, the air avoidance groove is arranged corresponding to the structural reinforcement tube, the structural reinforcement flattening sheet includes a peripheral overlap portion and a reinforcement flattening portion, the peripheral overlap portion is connected to the periphery of the reinforcement flattening portion, the peripheral overlap portion is connected to the periphery of the reinforcement flattening portion, and the peripheral overlap portion is provided. It is also connected to the outer side of the Kevlar reinforcement sheet; the tensile strength of the Kevlar reinforcement sheet is greater than the tensile strength of the structural reinforcement and flattening sheet, and bending parts are respectively formed at both ends of the inner thin plate, and the bending angle of the bending part is 40°-50°. The accommodating groove is located between the two bending parts, and the Kevlar reinforcement sheet is attached to the inner thin plate along the length direction of the inner thin plate, so that the Kevlar reinforcement sheet abuts against the bending part, and the reinforcement and flattening part abuts against the structural reinforcement tube.

[0048] The above-mentioned composite skateboard body has an inner thin plate with a receiving groove, and a structural reinforcement tube is located in the receiving groove and connected to the inner thin plate. The structural reinforcement tube strengthens the structural strength of the inner thin plate, and a Kevlar reinforcement sheet is provided on the outer side of the inner thin plate. The Kevlar reinforcement sheet is a high-performance synthetic fiber with excellent structural strength, compressive resistance and elasticity, and the Kevlar reinforcement sheet abuts against the bent portion of the inner thin plate. In this way, the overall structural strength of the skateboard body can be enhanced by the Kevlar reinforcement sheet, especially for skateboards with ultra-thin plates. The overall strength of the plate body and the strength of the bent portion can be significantly enhanced, thereby avoiding the plate body from being hit by high-intensity impact. The problem of cracks occurs; since the Kevlar reinforcement sheet is provided with an air-avoidance groove, the structural reinforcement and leveling sheet includes a peripheral overlap portion and a reinforcement and leveling portion, the peripheral overlap portion is connected to the outer side of the Kevlar reinforcement sheet, and the reinforcement and leveling portion is located in the air-avoidance groove. When the plate is pressed together, the Kevlar reinforcement sheet does not abut against the structural reinforcement tube, while the reinforcement and leveling portion abuts against the structural reinforcement tube, and since the tensile strength of the Kevlar reinforcement sheet is greater than the tensile strength of the structural reinforcement and leveling sheet, the problem of the Kevlar reinforcement sheet generating a large stress on the structural reinforcement tube during pressing, resulting in damage to the structural reinforcement tube, is avoided. At the same time, the reinforcement and leveling portion further strengthens the structural strength of the accommodating groove.

[0049] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0050] like Figure 1 and Figure 2 As shown, a composite skateboard body 10 of an embodiment includes an inner thin plate 100, a structural reinforcement tube 200, a structural reinforcement leveling sheet 300 and a Kevlar reinforcement sheet 400. The inner thin plate 100 is provided with a receiving groove 110. The structural reinforcement tube 200 is located in the receiving groove 110 and is connected to the inner thin plate 100. The Kevlar reinforcement sheet 400 is provided with an air avoidance groove 410. The air avoidance groove 410 is arranged corresponding to the structural reinforcement tube 200. The structural reinforcement leveling sheet 300 includes a peripheral overlap portion 310 and a reinforcement leveling portion 320. The peripheral overlap portion 310 is connected to the periphery of the reinforcement leveling portion 320. The peripheral overlap portion 310 is also connected to the outer side of the Kevlar reinforcement sheet 400.

[0051] Furthermore, the tensile strength of the Kevlar reinforcement sheet 400 is greater than the tensile strength of the structural reinforcement and flattening sheet 300, and a bending portion 120 is formed at both ends of the inner thin plate 100, and the bending angle of the bending portion 120 is 40°-50°. The accommodating groove 110 is located between the two bending portions 120, and the Kevlar reinforcement sheet 400 is adhered to the inner thin plate 100 along the length direction of the inner thin plate 100, so that the Kevlar reinforcement sheet 400 abuts against the bending portion 120, and the reinforcement and flattening portion 320 abuts against the structural reinforcement tube 200.

[0052] It can be understood that a receiving groove 110 is opened in the middle of the inner thin plate 100, and the structural reinforcement tube 200 is located in the receiving groove 110. The structural reinforcement tube 200 increases the structural strength of the inner thin plate 100. However, for the inner thin plate 100 with a smaller thickness, its own structural strength is relatively low, and the structural reinforcement tube 200 alone cannot meet the structural strength requirements. In particular, there is no plate body of the structural reinforcement tube 200 at the bending part of the inner thin plate 100, and the bending angle of the bending part 120 is 40°-50°, that is, the bending amplitude of the bending part 120 is large, and the stress on the bending part 120 during use will also be large, so there is still a risk of cracking. Therefore, in this embodiment, a Kevlar reinforcement sheet 400 is provided on the outer side of the inner thin plate 100. The Kevlar reinforcement sheet 400 is a high-performance synthetic fiber with excellent structural strength, compressive strength, and elasticity. The Kevlar reinforcement sheet 400 abuts against the bent portion 120, thereby enhancing the overall structural strength of the skateboard body and preventing cracks from occurring when subjected to high-intensity impacts. Furthermore, due to the high strength of the Kevlar reinforcement sheet 400 and the structural reinforcement tube 200 being embedded in the inner thin plate 100, a portion of the structural reinforcement tube 200 will protrude from the inner thin plate 100. If the Kevlar reinforcement sheet 400 is directly pressed against the structural reinforcement tube 200, the Kevlar reinforcement sheet 400 will crush the protruding structural reinforcement tube 200. By providing an air-avoidance groove 410 in the Kevlar reinforcement sheet 400, the air-avoidance groove 410 is arranged corresponding to the structural reinforcement tube 200, and the structural reinforcement flattening sheet 300 includes a connected peripheral overlap portion 310 and a strength reinforcement portion 310. The flattening portion 320 is located within the air-avoiding groove 410, and the tensile strength of the Kevlar reinforcement sheet 400 is greater than that of the structural reinforcement flattening sheet 300. That is, the structural strength of the structural reinforcement flattening sheet 300 is less than that of the Kevlar reinforcement sheet 400. During pressing, the flattening portion 320 abuts against the structural reinforcement tube 200, undergoing elastic deformation and flattening the protruding structural reinforcement tube 200 through the adhesive. This further strengthens the structural strength of the accommodating groove 110 while preventing the structural reinforcement tube 200 from being crushed. Furthermore, in this embodiment, both the structural reinforcement tube 200 and the structural reinforcement flattening sheet 300 are made of fiberglass.

[0053] The composite skateboard body 10 mentioned above has an inner thin plate 100 with a receiving groove 110, and a structural reinforcement tube 200 is located in the receiving groove 110 and connected to the inner thin plate 100. The structural reinforcement tube 200 strengthens the structural strength of the inner thin plate 100. A Kevlar reinforcement sheet 400 is provided on the outer side of the inner thin plate 100. The Kevlar reinforcement sheet 400 is a high-performance synthetic fiber with excellent structural strength, compressive resistance and elasticity. The Kevlar reinforcement sheet 400 abuts against the bent portion 120 of the inner thin plate 100. In this way, the overall structural strength of the skateboard body can be enhanced by the Kevlar reinforcement sheet 400, especially for skateboards with ultra-thin plates. The overall strength of the plate body and the strength of the bent portion 120 can be significantly enhanced, thereby avoiding the problem of cracks caused by high-intensity impact on the plate body. ; Since the Kevlar reinforcement sheet 400 is provided with an air avoidance groove 410, the structural reinforcement and leveling sheet 300 includes a peripheral overlap portion 310 and a reinforcement and leveling portion 320. The peripheral overlap portion 310 is connected to the outer side of the Kevlar reinforcement sheet 400, and the reinforcement and leveling portion 320 is located in the air avoidance groove 410. When the plate is pressed together, the Kevlar reinforcement sheet 400 does not abut against the structural reinforcement tube 200, while the reinforcement and leveling portion 320 abuts against the structural reinforcement tube 200. Moreover, since the tensile strength of the Kevlar reinforcement sheet 400 is greater than the tensile strength of the structural reinforcement and leveling sheet 300, the problem of the Kevlar reinforcement sheet 400 generating a large stress on the structural reinforcement tube 200 and causing damage to the structural reinforcement tube 200 during pressing is avoided. At the same time, the reinforcement and leveling portion 320 further strengthens the structural strength of the accommodating groove 110.

[0054] In one embodiment, the number of the Kevlar reinforcement sheets 400 is two, and the two Kevlar reinforcement sheets 400 are respectively bonded to the two sides of the inner thin plate 100. In this embodiment, the number of the Kevlar reinforcement sheets 400 is two, and the two Kevlar reinforcement sheets 400 are respectively bonded to the two sides of the inner thin plate 100 using glue, further strengthening the structural strength of the skateboard body.

[0055] In one embodiment, the composite skateboard body 10 further includes a flattening sheet (not shown), which is bonded to one side of the inner sheet 100, and a Kevlar reinforcement sheet 400 is bonded to the other side of the inner sheet 100. In this embodiment, there is only one Kevlar reinforcement sheet 400, which is bonded to the top surface of the inner sheet 100, while the flattening sheet is bonded to the bottom surface of the inner sheet 100. The flattening sheet is made of fiberglass and is thinner than the Kevlar reinforcement sheet 400. Furthermore, the flattening sheet has a certain elasticity and strength. Together, the flattening sheet and the Kevlar reinforcement sheet 400 ensure the structural strength of the skateboard body while also reducing the overall thickness of the skateboard body.

[0056] In one embodiment, the area of ​​the air-avoiding groove 410 is larger than the area of ​​the receiving groove 110. It is understood that the inner thin plate 100 is provided with a plurality of spaced receiving grooves 110, each receiving groove 110 containing a structural reinforcement tube 200 to improve the structural strength of the inner thin plate 100. However, there is only one air-avoiding groove 410, and a structural reinforcement leveling sheet 300 is provided therein. In other words, the area of ​​the air-avoiding groove 410 needs to be larger than the area of ​​the receiving groove 110 so that the structural reinforcement leveling sheet 300 can modify and level the plurality of structural reinforcement tubes 200 during lamination.

[0057] In one embodiment, the thickness of the inner thin plate 100 is 4 mm to 6 mm. In this embodiment, the thickness of the inner thin plate 100 is 5 mm.

[0058] In one embodiment, the thickness of the Kevlar reinforcement sheet 400 is 0.7 mm to 1.0 mm. In this embodiment, the thickness of the Kevlar reinforcement sheet 400 is 0.8 mm.

[0059] In one embodiment, the thickness of the structural reinforcement and leveling sheet 300 is 0.4 mm to 0.6 mm. In this embodiment, the thickness of the structural reinforcement and leveling sheet 300 is 0.5 mm.

[0060] In one embodiment, the thickness of the peripheral overlap portion 310 is less than the thickness of the reinforcing flattening portion 320. In this embodiment, the thickness of the peripheral overlap portion 310 is less than the thickness of the reinforcing flattening portion 320 because the peripheral overlap portion 310 is connected to the outside of the Kevlar reinforcement sheet 400, while the reinforcing flattening portion 320 is located within the air-avoiding groove 410. If the peripheral overlap portion 310 is thicker, the thickness outside the air-avoiding groove 410 will be thicker, which is not conducive to the structural flatness design of the skateboard body. Therefore, by reducing the thickness of the peripheral overlap portion 310, the peripheral overlap portion 310 will elastically deform during pressing, so that the thickness of the peripheral overlap portion 310 outside the air-avoiding groove 410 is negligible, thereby improving the flatness of the skateboard body.

[0061] In one embodiment, the structural reinforcement tube 200 is a carbon fiber tube, a glass fiber tube, or a metal tube. As will be appreciated, since the carbon fiber tube, the glass fiber tube, and the metal tube have a certain degree of bending resistance, i.e., a certain degree of structural strength, they enhance the structural strength and bending resistance of the inner sheet 100, thereby reducing the risk of the inner sheet 100 bending or cracking when subjected to impact.

[0062] In one embodiment, the structural reinforcement and leveling sheet 300 is a carbon fiber sheet or a glass fiber sheet. As will be appreciated, the carbon fiber sheet or glass fiber sheet has certain elastic properties and structural strength. During lamination, the structural reinforcement and leveling sheet 300 undergoes elastic deformation, and the adhesive structural reinforcement and leveling sheet 300 trims and levels the structural reinforcement tube 200 protruding from the receiving groove 110, thereby improving the flatness of the skateboard body and increasing the structural strength of the receiving groove 110, further preventing cracking.

[0063] In one embodiment, the tensile strength of the Kevlar reinforcement sheet 400 is 3.4 GPa to 3.6 GPa, while the tensile strength of the structural reinforcement and leveling sheet 300 is 1.5 GPa to 2.0 GPa. In this embodiment, the tensile strength of the Kevlar reinforcement sheet 400 is greater than that of the structural reinforcement and leveling sheet 300, meaning that the Kevlar reinforcement sheet 400 has a higher structural strength. Bonding the Kevlar reinforcement sheet 400 to the outer side of the inner sheet 100 significantly enhances the overall structural strength of the skateboard. The structural reinforcement and leveling sheet 300 is positioned within the airtight groove 410 to modify and level the structural reinforcement tube 200.

[0064] The present application also provides a skateboard, comprising a panel and the composite skateboard body 10 described in any of the above embodiments, wherein the panel is bonded to a side of the Kevlar reinforcement sheet 400 away from the inner thin plate 100.

[0065] like Figure 3 As shown, a method for manufacturing a skateboard is used to manufacture the skateboard described in the above embodiment, and the method for manufacturing the skateboard comprises the following steps:

[0066] S101: Grooving the inner thin plate to form a receiving groove. In this embodiment, the inner thin plate is grooved using a drill to form the receiving groove, which is used to accommodate the structural reinforcement tube. Furthermore, there may be multiple receiving grooves, each spaced apart along the width of the inner thin plate. Each receiving groove extends along the length of the inner thin plate, so that the longitudinal extension direction of the structural reinforcement tube aligns with the extension direction of the inner thin plate.

[0067] S102: Embed the structural reinforcement tube in the receiving groove. In this embodiment, the structural reinforcement tube is embedded in the receiving groove and bonded to the inner thin plate with glue. The structural reinforcement tube is a carbon fiber tube, a glass fiber tube, or a metal tube. It has a certain bending resistance, that is, a certain structural strength. It enhances the structural strength and bending resistance of the inner thin plate and reduces the risk of the inner thin plate bending or cracking when subjected to impact.

[0068] S103: Grooving the Kevlar reinforcement sheet to form a clearance groove. In this embodiment, the Kevlar reinforcement sheet is grooved using a drill to form a clearance groove. The clearance groove is provided in correspondence with the structural reinforcement tube. The clearance groove is used to accommodate the structural reinforcement leveling sheet so that the structural reinforcement leveling sheet abuts the structural reinforcement tube during the pressing process.

[0069] S104: Thin-wall trimming is performed on the structural reinforcement flattening sheet to form a peripheral overlap portion and a reinforcement flattening portion on the structural reinforcement flattening sheet, wherein the thickness of the peripheral overlap portion is less than the thickness of the reinforcement flattening portion. It is understood that a portion of the structural reinforcement flattening sheet needs to be located within the air avoidance groove of the Kevlar reinforcement sheet, and the peripheral portion of the structural reinforcement flattening sheet needs to be connected to the outside of the Kevlar reinforcement sheet to ensure a more stable connection between the structural reinforcement flattening sheet and the Kevlar reinforcement sheet. Since the structural reinforcement flattening sheet has a certain thickness, although the structural reinforcement flattening sheet has a certain elastic deformation performance, after the structural reinforcement flattening sheet and the Kevlar reinforcement sheet are pressed together, the structural reinforcement flattening sheet connected to the outside of the Kevlar reinforcement sheet still has a relatively high thickness, resulting in poor structural flatness of the Kevlar reinforcement sheet and the structural reinforcement flattening sheet. Therefore, in this embodiment, the structural reinforcement and flattening sheet is subjected to thin-wall trimming treatment, that is, the periphery of the structural reinforcement and flattening sheet is trimmed so that the structural reinforcement and flattening sheet is formed with a peripheral overlap portion and a reinforcement and flattening portion. The thickness of the peripheral overlap portion is less than the thickness of the reinforcement and flattening portion. The peripheral overlap portion is used to connect to the outside of the Kevlar reinforcement sheet. The reinforcement and flattening portion is located in the air avoidance groove. During pressing, the peripheral overlap portion undergoes elastic deformation to compress the thickness of the peripheral overlap portion, so that the peripheral overlap portion and the outside of the Kevlar reinforcement sheet are smoother. The reinforcement and flattening portion is in the air avoidance groove and abuts against the structural reinforcement tube to modify and flatten the protruding portion of the structural reinforcement tube, thereby making the overall structure of the skateboard body smoother.

[0070] S105: Connect the peripheral overlap portion to the outer side of the Kevlar reinforcement sheet so that the reinforced flattening portion is located within the air-avoiding groove. In this embodiment, the peripheral overlap portion is coated with glue to adhere the peripheral overlap portion to the outer side of the Kevlar reinforcement sheet. Accordingly, the reinforced flattening portion is located within the air-avoiding groove and is used to abut against the structural reinforcement tube during lamination to modify and flatten the protruding portion of the structural reinforcement tube.

[0071] S106: The Kevlar reinforcement sheet is stacked on the inner thin plate so that the reinforcement and flattening portion covers the receiving groove. It is understood that a structural reinforcement tube is embedded in the receiving groove, and the reinforcement and flattening portion is arranged corresponding to the structural reinforcement tube. When the Kevlar reinforcement sheet is stacked on the inner thin plate, the reinforcement and flattening portion abuts the structural reinforcement tube, and the reinforcement and flattening portion then trims and flattens the structural reinforcement tube during pressing.

[0072] S107: Apply glue to the Kevlar reinforcement sheet. It is understood that the Kevlar reinforcement sheet is coated with glue on the side adjacent to the inner thin plate. This ensures that the Kevlar reinforcement sheet and the inner thin plate are bonded together by the glue when pressed together, thereby enhancing the structural stability of the Kevlar reinforcement sheet and the inner thin plate. Furthermore, the Kevlar reinforcement sheet is also coated with glue on the side away from the inner thin plate to bond the panel to the Kevlar reinforcement sheet.

[0073] S108: Stacking the panels on the Kevlar reinforcement sheet. In this embodiment, there are two panels and two Kevlar reinforcement sheets. The two Kevlar reinforcement sheets are located on either side of the inner thin plate to enhance the overall structural strength of the inner thin plate. The two panels are located at the top and bottom, respectively. The panels, Kevlar reinforcement sheets, and inner thin plate form a laminated structure, resulting in a compact and stronger skateboard.

[0074] S109: Pressing the stacked plate structure together at a temperature of 75°C to 85°C for 1 to 1.5 hours. In this embodiment, the stacked plate structure is placed in a press for pressing at a temperature of 75°C to 85°C for 1 to 1.5 hours. This allows the adhesive between the inner thin plate, Kevlar reinforcement sheet, and panel to solidify, improving the connection stability between the various structures and thereby ensuring the structural strength of the skateboard.

[0075] S110: The plate structure is removed and cooled to obtain a formed skateboard. It is understood that after the plate structure is removed from the press, it is cooled, typically by natural cooling or air drying, so that the adhesive in the plate structure cools and solidifies, thereby further strengthening the connection between the inner thin plate, Kevlar reinforcement sheet, and panel.

[0076] It is understandable that, for comprehensive consideration of production cost and structural reinforcement performance, the structural reinforcement flattening sheet 300 is generally made of glass fiber, and preferably has a mesh structure. The glass fiber mesh is interwoven with warp yarns (longitudinal yarns) and weft yarns (transverse yarns) to form a stable mesh structure. In this way, when pressed together, the part where the glass fiber mesh contacts the structural reinforcement tube 200 undergoes elastic deformation and is firmly connected to the structural reinforcement tube 200 through the glue, thereby modifying and flattening the structural reinforcement tube 200. Figure 4 As shown, in order to form the glass fiber mesh with the peripheral overlap portion 310 and the reinforcing flattening portion 320, in one embodiment, the structural reinforcing flattening sheet 300 is subjected to a thin-wall trimming process, specifically including the following steps:

[0077] Cutting the fiberglass mesh according to the size of the accommodating groove 110 , wherein the area of ​​the fiberglass mesh is larger than the area of ​​the accommodating groove 110 ;

[0078] The weft and warp yarns at the periphery of the fiberglass mesh are evenly sheared so that the fiberglass mesh is formed with a peripheral overlap portion 310 and a reinforced flattening portion 320, wherein the peripheral overlap portion 310 includes a first peripheral overlap body 311 and a second peripheral overlap body 312, the first peripheral overlap body 311 and the second peripheral overlap body 312 are respectively connected to the reinforced flattening portion 320, and the thickness of the first peripheral overlap body 311 and the first peripheral overlap body 311 are both smaller than the reinforced flattening portion 320, the thickness of the first peripheral overlap body 311 is greater than or equal to the thickness of the second peripheral overlap body 312, the first peripheral overlap body 311 is used to connect to one side of the Kevlar reinforcement plate 400, and the second peripheral overlap body 312 is used to connect to the other side of the Kevlar reinforcement plate 400.

[0079] In this embodiment, the structural reinforcement and leveling sheet 300 uses a fiberglass mesh, which is cut according to the size of the accommodating groove 110 to form a fiberglass mesh of the required size, and the area of ​​the fiberglass mesh is larger than the area of ​​the accommodating groove 110. This is because the periphery of the fiberglass mesh needs to be connected to the Kevlar reinforcement sheet 400 on the outside of the accommodating groove 110 to ensure higher structural stability. Furthermore, since the glass fiber mesh is interwoven by warp (longitudinal yarn) and weft (transverse yarn) to form a stable grid structure, that is, the peripheral overlap portion 310 of the glass fiber mesh is composed of multiple warp and weft yarns, for a glass fiber mesh with a relatively sparse number of meshes, each warp and weft yarn at the periphery is evenly cut, that is, cut in half along the length direction of the warp (or weft), so that the peripheral overlap portion 310 is composed of a first peripheral overlap body 311 and a second peripheral overlap body 312, and the thickness of the first peripheral overlap body 311 can be greater than or equal to the thickness of the second peripheral overlap body 312, and the first peripheral overlap body 312 is preferably a plurality of warp and weft yarns. The thickness of the body 311 must be smaller than the middle reinforced flattening part 320. The first peripheral overlapping body 311 is used to connect to one side of the Kevlar reinforcement plate 400, and the second peripheral overlapping body 312 is used to connect to the other side of the Kevlar reinforcement plate 400. In this way, the warp (or weft) at the periphery is cut into two parts and connected to the two sides of the Kevlar reinforcement plate 400 respectively. When pressed, the first peripheral overlapping body 311 and the second peripheral overlapping body 312 undergo elastic deformation to make the thickness of the raised parts on the two sides of the Kevlar reinforcement plate 400 smaller, thereby ensuring the overall structural flatness of both sides of the Kevlar reinforcement plate 400.

[0080] Furthermore, for a fiberglass mesh with a relatively dense number of meshes, the warp and weft yarns are densely interwoven, making it difficult to evenly shear each warp or weft yarn. Therefore, in another embodiment, a thin-wall trimming process is performed on the structural reinforcement flattening sheet 300, specifically the following steps:

[0081] Cutting the fiberglass mesh according to the size of the accommodating groove 110 , wherein the area of ​​the fiberglass mesh is larger than the area of ​​the accommodating groove 110 ;

[0082] The fiberglass mesh is subjected to a wire picking and shearing process along the thickness direction, so that the fiberglass mesh is formed with a peripheral overlap portion 310 and a reinforcing and flattening portion 320 , wherein the thickness of the peripheral overlap portion 310 is half of the thickness of the reinforcing and flattening portion 320 .

[0083] In this embodiment, the structural reinforcement and leveling sheet 300 uses a fiberglass mesh, which is cut according to the size of the accommodating groove 110 to form a fiberglass mesh of the required size, and the area of ​​the fiberglass mesh is larger than the area of ​​the accommodating groove 110. This is because the periphery of the fiberglass mesh needs to be connected to the Kevlar reinforcement sheet 400 on the outside of the accommodating groove 110 to ensure higher structural stability. Furthermore, for a glass fiber mesh with dense mesh, it is more difficult to evenly cut each warp or weft, and the thickness of the glass fiber mesh is composed of warp and weft. The warp (or weft) at the edge of the glass fiber mesh is picked along the thickness direction, that is, the warp (or weft) is picked and sheared off. In this way, the thickness of the peripheral position of the glass fiber mesh (that is, the peripheral overlap portion 310) is compared with the reinforced flattening portion 320 in the middle area. Since the warp (or weft) is reduced, the thickness of the peripheral overlap portion 310 must be less than the thickness of the reinforced flattening portion 320, and the peripheral overlap portion 310 is half of the reinforced flattening portion 320. Therefore, the peripheral overlap portion 310 is connected to one side of the Kevlar reinforcement sheet 400 to make the overall structure of the Kevlar reinforcement sheet 400 flat.

[0084] Compared with the prior art, the present disclosure has at least the following advantages:

[0085] 1. In the composite skateboard body 10 described above, an inner thin plate 100 is provided with a receiving groove 110, and a structural reinforcement tube 200 is located in the receiving groove 110 and connected to the inner thin plate 100. The structural reinforcement tube 200 strengthens the structural strength of the inner thin plate 100. A Kevlar reinforcement sheet 400 is provided on the outer side of the inner thin plate 100. The Kevlar reinforcement sheet 400 is a high-performance synthetic fiber with excellent structural strength, compressive resistance and elasticity. The Kevlar reinforcement sheet 400 abuts against the bent portion 120 of the inner thin plate 100. In this way, the Kevlar reinforcement sheet 400 can enhance the overall structural strength of the skateboard body, especially for skateboards with ultra-thin plates. The overall strength of the plate body and the strength of the bent portion 120 can be significantly enhanced, thereby avoiding the problem of cracks caused by high-intensity impact on the plate body.

[0086] 2. The Kevlar reinforcement sheet 400 is provided with an air avoidance groove 410, and the structural reinforcement and leveling sheet 300 includes a peripheral overlap portion 310 and a reinforcement and leveling portion 320. The peripheral overlap portion 310 is connected to the outer side of the Kevlar reinforcement sheet 400, and the reinforcement and leveling portion 320 is located in the air avoidance groove 410. When the plate body is pressed together, the Kevlar reinforcement sheet 400 does not abut against the structural reinforcement tube 200, while the reinforcement and leveling portion 320 abuts against the structural reinforcement tube 200. Since the tensile strength of the Kevlar reinforcement sheet 400 is greater than the tensile strength of the structural reinforcement and leveling sheet 300, this avoids the problem of the Kevlar reinforcement sheet 400 generating a large stress on the structural reinforcement tube 200 during pressing, thereby damaging the structural reinforcement tube 200. At the same time, the reinforcement and leveling portion 320 further strengthens the structural strength of the accommodating groove 110.

[0087] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person of ordinary skill in the art could make various modifications and improvements without departing from the spirit of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present patent shall be determined by the appended claims.

Claims

1. A composite skateboard body, comprising an inner thin plate, a structural reinforcement tube, and a structural reinforcement flattening sheet, wherein the inner thin plate is provided with a receiving groove, the structural reinforcement tube is located in the receiving groove and connected to the inner thin plate, characterized in that: The composite skateboard body further includes a Kevlar reinforcement sheet, the Kevlar reinforcement sheet having an air avoidance groove, the air avoidance groove being arranged corresponding to the structural reinforcement tube, the structural reinforcement flattening sheet including a peripheral overlap portion and a reinforcement flattening portion, the peripheral overlap portion being connected to the periphery of the reinforcement flattening portion, and the peripheral overlap portion being further connected to the outer side of the Kevlar reinforcement sheet; The tensile strength of the Kevlar reinforcement sheet is greater than the tensile strength of the structural reinforcement and flattening sheet. A bending portion is formed at both ends of the inner thin plate, and the bending angle of the bending portion is 40°-50°. The accommodating groove is located between the two bending portions. The Kevlar reinforcement sheet is adhered to the inner thin plate along the length direction of the inner thin plate so that the Kevlar reinforcement sheet abuts against the bending portion, and the reinforcement and flattening portion abuts against the structural reinforcement tube.

2. The composite skateboard body according to claim 1, wherein: There are two Kevlar reinforcement sheets, which are respectively bonded to two side surfaces of the inner thin plate.

3. The composite skateboard body according to claim 1, wherein: The composite skateboard body further includes a flattening bottom sheet, which is bonded to one side of the inner thin plate, and the Kevlar reinforcement sheet is bonded to the other side of the inner thin plate.

4. The composite skateboard body according to claim 1, wherein: The area of ​​the air-avoiding groove is larger than the area of ​​the accommodating groove.

5. The composite skateboard body according to claim 1, wherein: The thickness of the inner thin plate is 4mm-6mm; and / or, The thickness of the Kevlar reinforcement sheet is 0.7 mm to 1.0 mm; and / or, The thickness of the structural reinforcement and leveling sheet is 0.4 mm to 0.6 mm.

6. The composite skateboard body according to claim 1, wherein: The thickness of the peripheral overlapping portion is smaller than the thickness of the reinforcing flattening portion.

7. The composite skateboard body according to claim 1, wherein: The structural reinforcement tube is a carbon fiber tube, a glass fiber tube, or a metal tube; and / or, The structural reinforcement and leveling sheet is a carbon fiber sheet or a glass fiber sheet.

8. The composite skateboard body according to claim 1, wherein: The tensile strength of the Kevlar reinforcement sheet is 3.4 GPa-3.6 GPa; the tensile strength of the structural reinforcement and leveling sheet is 1.5 GPa-2.0 GPa.

9. A skateboard, characterized in that: The composite skateboard comprises a panel and the composite skateboard body according to any one of claims 1 to 8, wherein the panel is bonded to a side of the Kevlar reinforcement sheet away from the inner thin plate.

10. A method for manufacturing a skateboard, for manufacturing the skateboard according to claim 9, characterized in that: The following steps are involved: Performing a slotting operation on the inner thin plate to form a receiving groove on the inner thin plate; embedding the structural reinforcement tube into the accommodating groove; Performing a slotting operation on the Kevlar reinforcement sheet so as to form a void groove on the Kevlar reinforcement sheet; Performing a thin-wall trimming process on the structural reinforcement and flattening sheet so that the structural reinforcement and flattening sheet is formed with a peripheral overlap portion and a reinforcement and flattening portion, wherein the thickness of the peripheral overlap portion is smaller than the thickness of the reinforcement and flattening portion; Connecting the peripheral overlap portion to the outer side of the Kevlar reinforcement sheet so that the reinforced flattening portion is located within the air-avoiding groove; The Kevlar reinforcement sheet is stacked on the inner thin plate so that the reinforcement and flattening portion covers the accommodating groove; Applying glue to the Kevlar reinforcement sheet; stacking the panel on the Kevlar reinforcement sheet; The stacked plate structure is pressed at a temperature of 75°C to 85°C for 1 hour to 1.5 hours. The plate structure is taken out and cooled to obtain a formed skateboard.

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