TWM654662U - Flipper board with water resistance reduction structure - Google Patents

Abstract

The present invention provides a fin board with a water-reducing resistance structure, comprising a board body and a pair of water-guiding strips. The board body is slightly rectangular and is provided with an assembly part and a paddling part. The board body is provided with an end of the assembly part, and the two sides thereof are respectively condensed in an arc in the direction of the main body's long axis, and the assembly part is obliquely extended from the paddling part at an angle so that a bending line is formed between the assembly part and the paddling part. When the assembly part is assembled to the front end of a shoe cover to form a fin, the fin board is inclined toward the front and lower part of the shoe cover, and the pair of water-guiding strips are respectively arranged on both sides of the paddling part. A water-reducing resistance structure is provided in the 1/3 area of the paddling part near the bending line, which is a plurality of water flow regulating ports opened in the board body, and the water flow regulating ports are radially arranged based on the long axis of the board body.

Description

Fins with water resistance structure

The invention relates to a fin board, in particular to a fin board with a water resistance structure.

Fins are one of the commonly used equipment for underwater sports and diving enthusiasts. They are usually made of plastic, rubber or other composite materials. They are designed to be fixed on the diver's feet to increase the diver's foot propulsion in the water, thereby improving swimming speed, movement efficiency and diving depth. The shape and structure of fins are usually considered hydrodynamics. They usually have an open design and use surface polishing, streamlined appearance and lightweight structure to improve the smoothness of water flow and reduce water resistance, thereby helping to improve the speed, efficiency and flexibility of swimmers or divers in water activities.

However, although the aforementioned technologies such as smoothing the surface of the board, adjusting the outer shape and lightweighting the structure are used to reduce the resistance of the fin board in the water in consideration of hydrodynamics, it is difficult to further reduce the water resistance due to the limitations of materials and existing structural forms. In view of this, how to improve the surface structure of the fin board by opening a water inlet, so as to drain the water flow through the water inlet and effectively further reduce the water resistance, thereby improving the deficiencies of the above-mentioned known technologies, is the subject that the present invention intends to explore.

In view of the above problems, the purpose of the present invention is to provide a fin board with a water guide hole for regulating the water flow when kicking the fin board in water to achieve a structure that reduces water resistance, further helping to improve the user's limb movement efficiency.

To achieve the above-mentioned purpose, the present invention discloses a fin board with a water resistance structure, which includes a board body and a pair of water guide strips. The board body is slightly rectangular and has an assembly part and a paddling part. The board body has two sides of one end of the assembly part that are respectively condensed in an arc toward the long axis direction of the body, and the assembly part extends obliquely from the paddling part at an angle so that a bend line is formed between the assembly part and the paddling part. When the assembly part is assembled to the front end of a shoe cover to make a fin, the fin plate is inclined toward the front and lower part of the shoe cover, and the pair of water guide strips are respectively arranged on both sides of the paddling part. The characteristic is that a water-reducing resistance structure is provided in the 1/3 area near the bending line of the paddling part, and a plurality of water flow regulating ports are opened on the board body, and the water flow regulating ports are radially arranged based on the long axis of the board body.

The water resistance structure is arranged in the 1/4 to 1/3 area near the bending line of the paddling part. The opening area of each water flow regulating port is 12 to 23 cm ² , and the opening position is located at the point where the bending amplitude of the board body is the smallest when it is kicked to achieve the best effect of reducing water resistance. The water flow regulating ports are two water flow regulating ports in the shape of diamonds. The long axis length of the two water flow regulating ports is 7 to 14 cm, and the short axis length is 1.5 to 5.0 cm. The center points of the two water flow regulating ports are located on the same horizontal line, and their side edges are parallel to each other so that the long axes of the water flow regulating ports converge in the direction of the center point of the paddling part and are arranged radially.

The water resistance structure is arranged in the 1/5 to 1/3 area of the paddling part near the bend line. The opening area of each water flow regulating port is 18 to 22 cm ² . The water flow regulating ports are three water flow regulating ports that are slightly diamond-shaped. The long axis lengths of the three water flow regulating ports are 7.5 to 13.5 cm, and the short axis lengths are 1.5 to 2.5 cm. The center points of the three water flow regulating ports are not located on the same horizontal line, and the long axes of the three water flow regulating ports are radially arranged in the direction of the center point of the bend line.

In summary, the front end of the fin board is bent to form the inclined assembly part for convenient assembly of the shoe cover, and two or three water flow regulating ports are provided near the inclined area to form a carefully designed water resistance structure. Accordingly, the water resistance strength encountered when kicking the fin board during diving is effectively reduced through the presence of the water flow regulating ports, thereby helping to improve the efficiency and effectiveness of the user's limb movements in water activities. In short, the present invention not only takes practicality into consideration in terms of assembly, but also fully considers the influence of hydraulics. The innovative water-reducing resistance structure helps users to perform kicking movements more easily during diving, thereby effectively improving the user's activity efficiency. At the same time, it can effectively reduce oxygen consumption and power consumption to improve the overall diving experience and performance, achieving a more comfortable and energy-saving use experience.

In order to enable people with ordinary knowledge in this field to clearly understand the content of this new model, please refer to the following description with diagrams.

Please refer to Figures 1 and 2, which are respectively a three-dimensional schematic diagram and a front view schematic diagram of a preferred embodiment of the present invention. As shown in the figure, the fin board 1 with a water resistance structure comprises a board body 10 and a pair of water guide strips 11. The board body 10 is slightly rectangular and has an assembly part 100 and a paddling part 101, and the pair of water guide strips 11 are respectively arranged on both sides of the paddling part 101. The board body 10 is provided with the assembly part 100 at one end, and both sides thereof are respectively condensed in an arc in the direction of the long axis of the body so that the assembly part 100 is designed to be similar to a tongue plate, and the assembly part 100 is inclined and extended from the paddling part 101 at an angle so that a bending line F is formed between the assembly part 100 and the paddling part 101, so that when the assembly part 100 is assembled to the front end of a shoe cover (not shown) to make a fin (not shown), the fin board 1 is inclined toward the front and lower part of the shoe cover.

A water-reducing resistance structure 102 is provided in the 1/3 area of the paddling portion 101 near the bending line F, wherein a plurality of water flow regulating ports 1020 are opened in the board body 10 , and the water flow regulating ports 1020 are radially arranged based on the long axis of the board body 10 . In this embodiment, a general shortboard fin is used as an example in a preferred embodiment. The paddling part 101 is about 49-50 cm long and the assembly part 100 is about 12 cm long. The water resistance structure 102 is arranged in the 1/4-1/3 area of the paddling part 101 near the bending line F. The opening area of each water flow regulating port 1020 is 12-23 cm ² , and the opening position is located at the point where the bending amplitude of the board body 10 is the smallest when kicking the fin board 1, so as to achieve the best effect of reducing water resistance. Furthermore, since the shape of the openings must avoid stress concentration during bending and causing the board surface to rupture, the water flow regulating ports 1020 can be two diamond-shaped water flow regulating ports 1020, with a major axis length of 7 to 14 cm and a minor axis length of 1.5 to 5.0 cm. The center points of the two water flow regulating ports 1020 are located on the same horizontal line and their side edges are parallel to each other so that the major axes of the water flow regulating ports 1020 converge in the direction of the center point of the paddling part 101 and are arranged radially, thereby achieving the purpose of reducing the water resistance when kicking, reducing the user's oxygen consumption when kicking, and thereby improving the smoothness of the limbs during water activities.

Please refer to Figures 3 and 4, which are respectively a three-dimensional schematic diagram and a front view schematic diagram of the second preferred embodiment of the present invention. As shown in the figure, the fin board 1 with a water resistance structure includes a board body 10 and a pair of water guide strips 11. The board body 10 can be made of materials such as carbon fiber, glass fiber and plastic and is slightly rectangular and has an assembly part 100 and a paddling part 101. The pair of water guide strips 11 can be made of silicone material and are respectively bonded and arranged on both sides of the paddling part 101. The board body 10 is provided with the assembly part 100 at one end, and the two sides thereof are respectively condensed in the arc direction of the main body long axis so that the assembly part 100 is designed like a tongue plate, and the assembly part 100 is extended obliquely from the paddling part 101 at an angle, for example, 30 degrees, so that a bending line F is formed between the assembly part 100 and the paddling part 101, so that when the assembly part 100 is assembled to the front end of a shoe cover to make a fin, the fin board 1 is inclined toward the front and lower side of the shoe cover. In addition, the other end of the board body 10 is curved, so that the paddling part 101 is flexible in shape like a fish tail swinging when the user wears the fin and kicks in the water.

A water resistance reduction structure is provided in the 1/3 area near the bending line of the paddling part 101, which is a structure that opens a plurality of water flow regulating ports 1020 on the board body 10, and the water flow regulating ports 1020 are radially arranged based on the long axis of the board body 10. Accordingly, the water resistance encountered when kicking the carbon fiber fin board 1 during diving is effectively reduced through the water flow regulating ports 1020, further helping to improve the user's limb movement efficiency. In this embodiment, a general longboard fin is used as an example in a preferred embodiment. The paddling portion 101 is about 62 cm long and the assembly portion 100 is about 13 cm long. The water-reducing resistance structure 102 is disposed in the 1/5 to 1/3 region of the paddling portion 101 near the bending line F. The board surface area of the board body 10 of this embodiment is larger and the bending amplitude is more linear. Therefore, the opening area of each water flow regulating port is 18 to 22 cm ² , and preferably can be close to 20 cm ² , so as to avoid the undesirable problem of stress concentration during kicking and causing the board surface to break due to the large opening area. Furthermore, since the shape of the openings must avoid stress concentration during bending and causing the plate surface to crack, the water flow regulating ports 1020 may be slightly diamond-shaped. The major axis lengths of the three water flow regulating ports 1020 are 7.5 to 13.5 cm, and the minor axis lengths are 1.5 to 2.5 cm. The center points of the three water flow regulating ports 1020 are not located on the same horizontal line, and the major axes of the water flow regulating ports 1020 are radially arranged in the direction of the center point of the bend line F. Accordingly, the opening position is coordinated with the structural design of the fin plate 1 to reduce the risk of rupture, and in order to obtain the largest opening area without affecting the structural strength, three water flow regulating ports 1020 are provided to consider the influence of hydraulic dynamics to realize the setting of the water reduction resistance structure, so that the user can perform the kicking action more easily when diving, effectively reducing the oxygen consumption and power consumption and improving the overall diving experience; in other words, while improving the user's movement efficiency, it also provides a more comfortable and energy-saving use experience.

However, the above is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention; therefore, all equivalent changes and modifications made without departing from the spirit and scope of the present invention should be included in the patent scope of the present invention.

1: Fin board 10: Board body 100: Assembly part 101: Paddling part 102: Water resistance structure 1020: Water flow regulating port 11: Water guide strip F: Folding line

Figure 1 is a three-dimensional schematic diagram of a preferred embodiment of the present invention. Figure 2 is a front view schematic diagram of a preferred embodiment of the present invention. Figure 3 is a three-dimensional schematic diagram of a preferred embodiment of the present invention. Figure 4 is a front view schematic diagram of a preferred embodiment of the present invention.

1: Fins board

10: Panel body

100:Assembly Department

101: Rowing Department

102: Rainfall resistance structure

1020: Water flow regulating port

11: Water guide strip

F: bend line

Claims (11)

A fin board with a water resistance structure includes a board body and a pair of water guide strips. The board body is slightly rectangular and has an assembly part and a paddling part. The board body has one end of the assembly part, and both sides thereof are respectively condensed in an arc in the direction of the main body's long axis, and the assembly part extends obliquely from the paddling part at an angle so that a bend line is formed between the assembly part and the paddling part. When the assembly part is assembled to the front end of a shoe cover to form a fin, the fin board is inclined toward the front and lower part of the shoe cover. The pair of water guide strips are respectively arranged on both sides of the paddling part. The characteristics are: A water-reducing resistance structure is provided in the 1/3 area of the paddling part near the bending line, which is a plurality of water flow regulating ports opened on the board body, and the water flow regulating ports are radially arranged based on the long axis of the board body. The fin board with a water-reducing resistance structure as described in claim 1, wherein the water-reducing resistance structure is arranged in the 1/4 to 1/3 area near the bending line of the paddling part. As described in claim 2, the fin board with a water resistance reduction structure has an opening area of 12-23 cm ² of each water flow regulating port, and the opening is located at the point where the bending amplitude of the board body is the smallest when kicking, thereby achieving the best effect of reducing water resistance. As described in claim 3, the fin plate with a water resistance structure, wherein the water flow regulating ports are two water flow regulating ports in a diamond shape. As described in claim 4, the fin board with a water resistance structure, wherein the long axis lengths of the two water flow regulating ports are 7 to 14 cm and the short axis lengths are 1.5 to 5.0 cm respectively. As described in claim 4, the fin board with a water resistance structure, wherein the center points of the two water flow regulating ports are located on the same horizontal line, and their respective side edges are parallel to each other so that the long axes of the water flow regulating ports converge in the direction of the center point of the paddling part and are arranged radially. The fin board with a water-reducing resistance structure as described in claim 1, wherein the water-reducing resistance structure is arranged in the 1/5 to 1/3 area near the bending line of the paddling part. The fin board with a water resistance structure as described in claim 7, wherein the opening area of each water flow regulating port is 18-22 cm ² . As described in claim 8, the fin plate with a water resistance structure, wherein the water flow regulating ports are three water flow regulating ports that are slightly diamond-shaped. As described in claim 9, the fin board with a water resistance structure, wherein the long axis lengths of the three water flow regulating ports are 7.5 to 13.5 cm and the short axis lengths are 1.5 to 2.5 cm respectively. As described in claim 9, the fin board with a water resistance structure, wherein the center points of the three water flow regulating ports are not located on the same horizontal line, and the long axes of the water flow regulating ports are radially arranged in the direction of the center point of the bending line.