Bamboo surfboard and manufacturing method therefor

Abstract

The present invention provides a manufacturing method for a bamboo surfboard, comprising the following steps: S1, preparing a bamboo board; S2, manufacturing a core of a surfboard: drawing an outline on the bamboo board on the basis of the shape of the surfboard, using a saw or a plane to thin the bamboo board according to the outline, so as to form the core of the surfboard, and ensuring that the board surface is smooth and the requirements of the surfboard for the curve and the concave-convex degree are met; S3, reinforcing an outer layer of the surfboard: laying fiberglass cloth on the surface of the bamboo board, smearing an appropriate amount of polyester resin, and curing same with a hardening agent; and on the basis of the requirements of the surfboard, repeatedly smearing and curing multiple layers of fiberglass cloth and resin to increase the strength and durability of the surfboard; S4, perfecting the shape of the surfboard; S5, decorating and coating; and S6, checking and testing. The solution improves the compression resistance, impact resistance and distortion resistance of the surfboard, improves the overall structural strength of the surfboard, and prolongs the service life of the surfboard.

Description

Bamboo surfboard and manufacturing method thereof Technical Field

[0001] The present invention relates to the field of bamboo products, in particular to a bamboo surfboard and a manufacturing method thereof. Background Art

[0002] Surfing is a thrilling outdoor sport. Harnessing the power of the waves, mastering the skill of the surfboard, and experiencing the speed of the waves is both thrilling and exhilarating. Surfing is a highly specialized sport, but even beginners can experience its joy after learning basic techniques. Surfing is an extreme sport driven by waves. Surfers lie prone or seated on their surfboards and wait for suitable waves in the ocean. When a suitable wave approaches, the surfer adjusts the direction of the board's nose, lies prone on the board, and paddles in the direction of the wave, giving the board enough speed to stay ahead of the wave. As the wave propels the board forward, the surfer stands up, legs naturally positioned forward and backward, knees slightly bent. They are controlled by the body's center of gravity, shoulders, and hind legs. Therefore, the ease of use of a surfboard directly affects the user's experience and safety, requiring the surfboard to have certain elasticity, compression resistance, and torsion resistance. Existing surfboards use foam core boards during the manufacturing process, or add 2-5 frames to the foam core board to improve the structural strength and elasticity of the surfboard and reduce its deformation. However, after long-term use and the impact and compression of waves on a single frame, the end of the frame may pierce the core board and detach from the core board, damaging the surfboard. The torsion resistance is very weak, which directly affects the service life of the surfboard. Therefore, it is an urgent problem to be solved.

[0003] Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a bamboo surfboard and a manufacturing method thereof that uses natural raw materials to reduce environmental pollution and improve environmental protection, has strong anti-distortion ability, high structural strength, outstanding compressive resistance and long service life.

[0005] The technical solution of the present invention is: a method for manufacturing a bamboo surfboard, comprising the following steps:

[0006] S1, prepare the bamboo board: saw the bamboo board into appropriate size, ensuring that the width, thickness and length of the bamboo board meet the requirements of the surfboard; use a file to trim the edge of the bamboo board and use sandpaper to polish the board surface to make it smooth;

[0007] S2, making the core of the surfboard: according to the shape of the surfboard, the outline is marked on the bamboo board, and the bamboo board is thinned according to the outline using a saw or plane to form the core of the surfboard, ensuring that the board surface is flat and meets the curve and convexity requirements of the surfboard;

[0008] S3, surfboard outer layer reinforcement: Spread fiberglass cloth on the surface of the bamboo board, apply an appropriate amount of polyester resin, and use a hardener to cure it. According to the requirements of the surfboard, repeat the application and curing of multiple layers of fiberglass cloth and resin to increase the strength and durability of the surfboard.

[0009] S4, Perfecting the Shape of the Surfboard: Using saws, planes, and sandpaper, meticulously trim and shape the surfboard to achieve the desired shape and curves; ensuring the symmetry and balance of the surfboard;

[0010] S5, Decoration and Coating: Decoration and coating are performed on the outer surface of the surfboard; natural oils or environmentally friendly paints are used to apply protective coating to the bamboo board to enhance its water resistance and wear resistance;

[0011] S6, Inspection and Testing: After completing the manufacturing process, check whether the surfboard’s surface is flat, the edges are smooth, and the core is strong; at the same time, conduct bending test and weight test.

[0012] Furthermore, the bamboo board is formed by hot-pressing a plurality of bamboo strips with a water-based adhesive, and has a thickness of 0.5-3 cm. Preferably, the bamboo board has a thickness of 0.6-2.2 cm; more preferably, the bamboo board has a thickness of 0.8 cm. When the bamboo board thickness is below a set lower limit, its torsional and compressive resistance is poor, affecting the performance of the surfboard. Thicker bamboo boards have higher structural strength and greater compressive and torsional resistance, but they also increase the weight of the surfboard, affecting its buoyancy and ease of use. Therefore, thicker bamboo boards are not necessarily better; surfboards with thicknesses within a set range achieve the best performance.

[0013] Furthermore, the bamboo board is provided with a plurality of grooves, each of which has a rough surface or a curved surface. Preferably, the grooves are also provided with through holes, which are arranged through-holes. This facilitates the application of polyester resin to fill the through holes when laying fiberglass cloth on the bamboo board. After curing with a curing agent, a stable connection structure is formed, in which the cured polyester resin acts as a pull, while the through holes primarily serve as bridges. The rough surface or curved surface in the grooves increases the overlap area between the polyester resin and the bamboo board, thereby improving the connection strength between the bamboo board and the fiberglass cloth.

[0014] Furthermore, the surfboard outer layer is reinforced using hot pressing, with a temperature of 180-220°C and a pressure of 2-5 MPa. The hot pressing process is maintained for 10-20 minutes to ensure the outer layer is cured and the glass fiber cloth is fully and firmly bonded to the bamboo board.

[0015] Furthermore, the surfboard weighs 11-26 kg, has a length of 1.5-2.7 m, a width of 55-65 cm, and a thickness of 5-10 cm. Preferably, the surfboard weighs 12-25 kg, has a length of 1.6-2.5 m, a width of 57-63 cm, and a thickness of 5.5-8 cm. More preferably, the surfboard weighs 20 kg, has a length of 2.5 m, a width of 57 cm, and a thickness of 5.9 cm. Surfboards within this size range offer optimal comfort, a relatively moderate weight, and excellent structural strength. Furthermore, the width is between 1.5-2 times the width of a human shoulder, and the length is approximately 0.9-1.5 times the height of a human body, ensuring the flexibility of the surfboard.

[0016] Furthermore, the fiberglass cloth wraps the bamboo board, with the edges of the cloth extending at least 3 cm beyond the board. The edges are glued and cured using polyester resin and a curing agent. Preferably, the edges of the cloth extend 3.1-10 cm beyond the board; more preferably, 4-8 cm; and most preferably, 4.5 / 5 / 6 / 7 cm. This ensures optimal softness and a relatively low hardness at the edges, preventing impact or injury to the user during use. The cloth primarily provides cushioning and protection, providing both user protection and core board protection.

[0017] Furthermore, the upper surface of the fiberglass cloth is sequentially coated with a first polyethylene layer, a patterned non-woven fabric layer, and a second polyethylene layer. The first polyethylene layer ensures a tight connection between the non-woven fabric layer and the fiberglass cloth. The second polyethylene layer is provided as an outer layer to enhance the fixing effect of the non-woven fabric and reduce corrosion and degradation of the non-woven fabric caused by seawater and sunlight, thereby ensuring the service life of the surfboard. The first polyethylene layer, the patterned non-woven fabric layer, and the second polyethylene layer are combined to form a certain thickness to provide a cushioning effect.

[0018] Furthermore, the upper surface of the second polyethylene layer is bonded with a plastic anti-skid plate with a rough surface, thereby improving the pedaling effect. The anti-skid plate has the function of wear resistance and anti-skid, and plays a protective role for the surfboard.

[0019] A bamboo surfboard is manufactured by adopting the manufacturing method.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Effectively improve the surfboard's ability to resist compression, impact and distortion, thereby increasing its overall structural strength and service life.

[0022] 2. Sustainability and environmental friendliness: Bamboo is a naturally renewable resource. Compared to synthetic materials like polyurethane foam, using bamboo as the core material for surfboards is more sustainable. Bamboo grows quickly, is a highly renewable resource, and absorbs large amounts of carbon dioxide during its growth, mitigating the effects of climate change.

[0023] 3. Strength and Durability: Bamboo has excellent strength and toughness, providing good structural support and durability. Compared with polyurethane foam core materials, bamboo boards can better withstand the pressure and impact during surfing, reducing the risk of damage and deformation.

[0024] 4. Natural elasticity and rebound force: Bamboo has natural elasticity and toughness, which can provide good elasticity and rebound force during surfing. This makes the surfboard more responsive, and surfers can better control and manipulate the board for a better surfing experience.

[0025] 5. Unique look and feel: Bamboo boards give the surfboard a unique natural beauty and look, making it a unique presence on the water.

[0026] The detailed structure of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG1 is a schematic diagram of the production process of a surfboard according to the present invention. DETAILED DESCRIPTION

[0028] As shown in Figure 1: A bamboo surfboard is made by the following manufacturing method, including:

[0029] S1, prepare the bamboo board: saw the bamboo board into appropriate size, ensuring that the width, thickness and length of the bamboo board meet the requirements of the surfboard; use a file to trim the edge of the bamboo board and use sandpaper to polish the board surface to make it smooth;

[0030] The bamboo board is formed by hot-pressing several bamboo strips with a water-based adhesive. The thickness of the bamboo board is 0.5-3 cm. Preferably, the thickness of the bamboo board is 0.6-2.2 cm; more preferably, the thickness of the bamboo board is 0.8 cm. When the bamboo board thickness is below the lower limit of the set value, its torsion and compression resistance are poor, affecting the performance of the surfboard. Thicker bamboo boards have higher structural strength and greater resistance to compression and torsion, but they also increase the weight of the surfboard, affecting the buoyancy and ease of use of the surfboard. Therefore, thicker bamboo boards are not necessarily better. Surfboards with thicknesses within the set range have the best performance.

[0031] The bamboo board is provided with a plurality of grooves, each of which has a rough surface or a curved surface. Preferably, the grooves are also provided with through holes, which are arranged throughout so that when the fiberglass cloth is laid on the bamboo board, polyester resin can be applied to fill the through holes. After curing with a curing agent, a stable connection structure is formed, in which the cured polyester resin plays a pulling role, while the through holes mainly serve as bridges. The rough surface or the curved surface in the groove can increase the overlap area between the polyester resin and the bamboo board, thereby improving the connection strength between the bamboo board and the fiberglass cloth.

[0032] S2, making the core of the surfboard: according to the shape of the surfboard, the outline is marked on the bamboo board, and the bamboo board is thinned according to the outline using a saw or plane to form the core of the surfboard, ensuring that the board surface is flat and meets the curve and convexity requirements of the surfboard;

[0033] S3, surfboard outer layer reinforcement: Spread fiberglass cloth on the surface of the bamboo board, apply an appropriate amount of polyester resin, and use a hardener to cure it. According to the requirements of the surfboard, repeat the application and curing of multiple layers of fiberglass cloth and resin to increase the strength and durability of the surfboard.

[0034] The bamboo board is wrapped in glass fiber cloth, with the edges of the glass fiber cloth extending at least 3 cm beyond the bamboo board. The edges are glued and cured using polyester resin and a curing agent. Preferably, the edges of the glass fiber cloth extend 3.1-10 cm beyond the bamboo board; more preferably, 4-8 cm; and most preferably, the edges of the glass fiber cloth in this embodiment extend 5 cm beyond the bamboo board. This ensures comfortable softness and a relatively low hardness at the edges, preventing impact or injury to the user during use. The primary function is to provide cushioning protection, providing dual protection for both the user and the core board.

[0035] The surfboard's outer layer is reinforced using hot pressing, with temperatures controlled at 185 / 190°C and pressures at 2.2 / 2.5 MPa. The pressure is maintained for 15 / 18 minutes to ensure the outer layer is cured and securely bonded to the bamboo board.

[0036] S4, Perfecting the Shape of the Surfboard: Using saws, planes, and sandpaper, meticulously trim and shape the surfboard to achieve the desired shape and curves; ensuring the symmetry and balance of the surfboard;

[0037] S5, Decoration and Coating: Decoration and coating are performed on the outer surface of the surfboard; natural oils or environmentally friendly paints are used to apply protective coating to the bamboo board to enhance its water resistance and wear resistance;

[0038] The upper surface of the fiberglass cloth is sequentially coated with a first polyethylene layer, a patterned non-woven fabric layer, and a second polyethylene layer. The first polyethylene layer ensures a tight connection between the non-woven fabric layer and the fiberglass cloth. The second polyethylene layer, positioned as an outer layer, enhances the non-woven fabric's securement and reduces corrosion and degradation from seawater, sunlight, and other factors, thereby ensuring the longevity of the surfboard. The first polyethylene layer, the patterned non-woven fabric layer, and the second polyethylene layer, combined together, have a certain thickness to provide a cushioning effect. Preferably, a roughened plastic anti-skid plate is applied to the upper surface of the second polyethylene layer. This improves pedaling efficiency, and the anti-skid plate provides wear resistance and anti-slip properties, protecting the surfboard.

[0039] S6, Inspection and Testing: After completing the manufacturing process, check whether the surfboard’s surface is flat, the edges are smooth, and the core is strong; at the same time, conduct bending test and weight test.

[0040] The weight of the surfboard is 11-26 kg, the length of the surfboard is 1.5-2.7 m, the width is 55-65 cm, and the thickness is 5-10 cm. Preferably, the weight of the surfboard is 12-25 kg, the length of the surfboard is 1.6-2.5 m, the width is 57-63 cm, and the thickness is 5.5-8 cm. More preferably, in this embodiment, the weight of the surfboard is 21 kg, the length of the surfboard is 2.6 m, the width is 59 cm, and the thickness is 5.7 cm. Surfboards within this size range are most comfortable, the weight is relatively moderate, and the structural strength can be well guaranteed. In addition, the width is just between 1.5 and 2 times the width of the human shoulder, and the length is about 0.9 to 1.5 times the height of the human body, which facilitates the flexibility of the surfboard.

[0041] This invention effectively improves a surfboard's resistance to compression, impact, and torsion, enhancing its overall structural strength and longevity. Sustainability and Environmental Protection: Bamboo is a naturally renewable resource. Compared to synthetic materials like polyurethane foam, using bamboo boards as a core material for surfboards is more sustainable. Bamboo grows quickly, is a highly renewable resource, and absorbs significant amounts of carbon dioxide during its growth process, mitigating the effects of climate change. Strength and Durability: Bamboo's exceptional strength and toughness provide excellent structural support and durability. Compared to polyurethane foam cores, bamboo boards are better able to withstand the pressure and impact of surfing, reducing the risk of breakage and deformation. Natural Resilience and Rebound: Bamboo's natural elasticity and toughness provide excellent resilience and rebound during surfing. This makes the surfboard more responsive, allowing surfers to better control and maneuver the board for a better surfing experience. Unique Look and Feel: Bamboo boards impart a unique natural beauty and appearance to surfboards, making them a distinctive presence on the water. The bamboo's texture and color lend a distinctive look to surfboards, satisfying surfers' pursuit of individuality and uniqueness.

[0042] The above are preferred embodiments of the present invention and the technical principles used therein. For those skilled in the art, any obvious changes such as equivalent transformations, simple replacements, etc. based on the technical solution of the present invention, without departing from the spirit and scope of the present invention, are within the scope of protection of the present invention.

Claims

1. A method for manufacturing a bamboo surfboard, characterized in that: The following steps are involved: S1, prepare the bamboo board: saw the bamboo board into appropriate size, making sure the width, thickness and length of the bamboo board meet the requirements of the surfboard; use a file to trim the edge of the bamboo board and use sandpaper to polish the board surface to make it smooth; S2, making the core of the surfboard: according to the shape of the surfboard, draw an outline on the bamboo board, use a saw or plane to thin the bamboo board according to the outline to form the core of the surfboard, and ensure that the board surface is flat and meets the curve and convexity requirements of the surfboard; S3, surfboard outer layer reinforcement: Spread glass fiber cloth on the surface of bamboo board, apply appropriate amount of polyester resin, and use hardener to cure; according to the requirements of surfboard, repeat the application and curing of multiple layers of glass fiber cloth and resin to increase the strength and durability of surfboard; S4, Perfecting the Shape of the Surfboard: Using saws, planes and sandpaper, carefully trimming and shaping the surfboard to achieve the desired shape and curves; ensuring the symmetry and balance of the surfboard; S5, Decoration and Coating: Decoration and coating of the outer surface of the surfboard; Protective coating of bamboo boards with natural oils or environmentally friendly paints to enhance water and abrasion resistance; S6, Inspection and Testing: After finishing the manufacturing process, check whether the surface of the surfboard is flat, the edges are smooth, and the core is solid; at the same time, conduct bending test and weight test.

2. The method for making a bamboo surfboard according to claim 1, characterized in that: The bamboo board is formed by hot pressing a plurality of bamboo pieces with a water-based adhesive, and the thickness of the bamboo board is 0.5-3 cm.

3. The method for making a bamboo surfboard according to claim 1, characterized in that: The bamboo board is provided with a plurality of grooves, and the grooves are provided with rough surfaces or curved surfaces.

4. The method for making a bamboo surfboard according to claim 1, characterized in that: The outer layer of the surfboard is reinforced by hot pressing, the temperature is controlled at 180-220° C., and the pressure is controlled at 2-5 MPa.

5. The method for making a bamboo surfboard according to claim 1, characterized in that: The weight of the surfboard is 11-26 kg, the length of the surfboard is 1.5-2.7 m, the width is 55-65 cm, and the thickness is 5-10 cm.

6. The method for making a bamboo surfboard according to claim 1, characterized in that: The glass fiber cloth wraps the bamboo board, and the edge of the glass fiber cloth extends at least 3 cm outside the bamboo board. The edge is glued and cured by using polyester resin and curing agent.

7. The method for making a bamboo surfboard according to claim 6, characterized in that: The upper surface of the glass fiber cloth is coated with a first polyethylene layer, a non-woven fabric layer printed with patterns, and a second polyethylene layer in sequence.

8. The method for making a bamboo surfboard according to claim 1, characterized in that: The upper surface of the second polyethylene layer is attached to a plastic anti-slip plate with a rough surface.

9. A bamboo surfboard, characterized in that: The invention is manufactured by the manufacturing method according to any one of claims 1 to 8.

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