TWI815679B - A fin board structure - Google Patents

Abstract

A fin board structure is in a shape of a long sheet and includes a plurality of fiber layers stacked and bonded upwardly in sequence. The bottom layer of the bottom surface of the fin board structure is a rectangular fiber board. The front end of the first rectangular board of a first fiber layer is aligned with the front end of the bottom layer. The left side of a first right triangle plate is aligned with the left side of the bottom layer. A middle layer has the same size and shape as the bottom layer. The front end of the second rectangular plate of a second fiber layer is aligned with the front end of the bottom layer, and the right side of a second right triangle plate is aligned with the right side of the bottom layer. A middle rib layer is located in the middle between the left and right sides of the second fiber layer. The front end of the middle rib layer overlaps the second right angle triangular plate, and the rear end of the middle rib layer overlaps and is adjacent to the rear end of the middle layer. A top layer is provided over the middle rib layer, and the top layer and the bottom layer have the same size and shape.

Description

Fin plate structure

This invention relates to a fin plate structure, especially one that has sufficient strength and can reduce the overall weight and produce good propulsion effect.

Whether you are carrying an oxygen bottle for deep diving or snorkeling on the sea, wearing fins can effectively increase the thrust in the water or on the surface. Regardless of whether they are "slip-on fins" that are put on directly on the feet or "adjustable fins" that must be put on overshoes first and then fins, fins made of rubber, PU, or other composite plastics Shoes have little impact on kicking efficiency. As long as the material is strong enough and not too soft, it will still have good propulsion.

Therefore, the multi-layer fiber layer structure commonly used at present can indeed make the fin plate have sufficient material strength, and will not affect the propulsion force due to being too soft when swinging. However, the above-mentioned fin board structure is mainly formed by stacking a plurality of fiber layers of the same size and shape, bonding them with resin, and then hardening them through heating and pressure processes. After molding, the entire fin board surface has the same Strength and bending softness. In actual use, if this structure further increases the number of stacked fiber layers, it will be able to generate greater propulsive force if the bending flexibility allows, but the overall weight will increase, requiring greater kicking. Strength, on the contrary, cannot achieve the effect of saving labor and generating greater propulsion force.

In view of this, in order to provide a structure and method that is different from the conventional technology and improve the above shortcomings, the creator has accumulated many years of experience and continuous research and development and improvement, and thus came into being this creation.

One of the purposes of this creation is to provide a fin board structure that can solve the problem of conventional fiber structure fin board structures. After increasing the stacking number of fiber layers, the overall weight will increase and greater kicking force will be required, but it cannot To achieve labor saving and produce greater propulsion effect. Through the stacking structure of multiple fiber layers with different shapes, different stacking thicknesses can be formed in different areas of the fin board, thereby producing different strength and softness distributions. Under the requirement of sufficient strength, it can Reduce the overall weight and produce greater propulsion effect.

In order to achieve the purpose of the above creation, the fin plate structure set up in this creation is in the shape of a long sheet and includes a plurality of stacked and combined fiber layers. The fin plate structure has a front end and a rear end in the long direction, and the front end is used for coupling to On a shoe cover, the fin plate structure has a left side and a right side in the short direction; its main technical feature is that a plurality of fiber layers are stacked upward in sequence and include a bottom layer, a first fiber layer, and a a middle layer, a second fiber layer, a middle rib layer and a top layer. The bottom layer is a rectangular fiber board; the first fiber layer has a first rectangular board and a first right-angled triangular board extending backward from the rear end of the first rectangular board. The front end of the first rectangular board is aligned with the front end of the bottom layer. The left side of the triangular plate is aligned with the left side of the bottom layer; the middle layer is a rectangular fiber board, and the middle layer and the bottom layer have the same size and shape; the second fiber layer has a second rectangular board and extends backward from the rear end of the second rectangular board A second right-angled triangular plate, the front end of the second rectangular plate is aligned with the front end of the bottom layer, the right side of the second right-angled triangular plate is aligned with the right side of the bottom layer; the middle rib layer is a long strip fiber board, and the middle rib layer is located in the second fiber layer Between the left side and the right side, the front end of the middle rib layer overlaps the second right-angled triangle plate, the back end of the middle rib layer overlaps and is adjacent to the back end of the middle layer; and the top layer is combined above the middle rib layer, and the top layer is a rectangle In fiberboard, the top and bottom layers are the same size and shape.

During implementation, the bottom layer, the middle layer and the top layer are respectively rectangular woven fiber boards. The first fiber layer has a plurality of straight first fibers, and the plurality of first fibers respectively extend from the front end of the first fiber layer toward the rear end; The second fiber layer has a plurality of straight second fibers, and the plurality of second fibers respectively extend from the front end of the second fiber layer toward the rear end.

During implementation, the middle rib layer is a long woven fiber board, the hypotenuse of the first right-angled triangular plate and the hypotenuse of the second right-angled triangular plate intersect with each other, and the front end of the middle rib layer overlaps the intersection at the same time.

During implementation, the invention further includes a third rectangular plate. The third rectangular plate is sandwiched between the bottom layer and the first rectangular plate. The third rectangular plate and the first rectangular plate have the same size and shape.

When implemented, the invention further includes a support layer, the support layer is located at the front end of the middle rib layer, and the support layer and the middle rib layer are on the same plane; the support layer has a fourth rectangular plate and extends backward from the rear end of the fourth rectangular plate. A concave plate, a fourth rectangular plate overlaps above the second rectangular plate, and the rear end of the concave plate has bent edges protruding from both sides.

In order to further understand this creation, the following is a preferred embodiment, and together with the drawings and drawing numbers, the specific components of this creation and the effects achieved are described in detail as follows:

As shown in Figure 1, the fin board structure 1 of the present invention is in the shape of a long sheet, which mainly includes a plurality of fiber layers 10. The fin board structure 1 has a front end and a rear end in the long direction. The short direction has a left side and a right side; the front end of the fin plate structure 1 is combined with a shoe cover 9 through a bending portion, so that when the user wears the shoe cover 9, the rear end of the invention is relative to the front end. Swing to increase forward thrust in or on water.

Please refer to Figures 1 and 2 at the same time, which is a first embodiment of the fin plate structure 1 of the present invention. The plurality of fiber layers 10 mainly include a bottom layer 2 and are stacked and combined sequentially upward from the top of the bottom layer 2. A first fiber layer 3, a middle layer 4, a second fiber layer 5, a middle rib layer 6 and a top layer 7. The bottom layer 2, the middle layer 4, the middle rib layer 6 and the top layer 7 are respectively woven fiber boards, and the bottom layer 2, the middle layer 4 and the top layer 7 are respectively rectangular carbon fiber boards with the same size and shape. Each carbon fiber plate is made of carbon fiber cloth and resin, which are bonded and hardened. High structural strength is produced by each woven fiber cloth. During implementation, each fiber layer of the plurality of fiber layers 10 may also include a fiber board with glass fiber or the like.

The first fiber layer 3 is a whole piece of carbon fiber plate, and the first fiber layer 3 has a plurality of straight first fibers 31 , and the plurality of first fibers 31 are respectively from the front end of the first fiber layer 3 to the rear end. Extend to create strength in one direction. After the first fiber layer 3 is divided in shape, it has a first rectangular plate 32 and a first right-angled triangular plate 33 extending backward from the rear end of the first rectangular plate 32; the front end of the first rectangular plate 32 is aligned with the front end of the bottom layer 2 , the left side of the first right-angled triangular plate 33 is aligned with the left side of the bottom layer 2 .

The second fiber layer 5 is a whole piece of carbon fiber plate, and the second fiber layer 5 has a plurality of second fibers 51 in a straight direction. The plurality of second fibers 51 are respectively from the front end of the second fiber layer 5 to the rear end. Extend to create strength in one direction. After the second fiber layer 5 is divided in shape, it has a second rectangular plate 52 and a second right-angled triangular plate 53 extending backward from the rear end of the second rectangular plate 52. The front end of the second rectangular plate 52 is aligned with the middle layer 4 and At the front end of the bottom layer 2, the right side of the second right triangle plate 53 is aligned with the right side of the middle layer 4 and the bottom layer 2; the hypotenuse 54 of the second right triangle plate 53 and the hypotenuse 34 of the first right triangle plate 33 intersect with each other.

The middle rib layer 6 is a long carbon fiber plate. The middle rib layer 6 is located in the middle of the left and right sides of the second fiber layer 5 and is parallel to the left and right sides of the middle layer 4 . The front end of the middle rib 6 is adhered to the top of the second right-angled triangular plate 53 and overlaps at the intersection of the hypotenuse 34 of the first right-angled triangular plate 33 and the hypotenuse 54 of the second right-angled triangular plate 53 . The rear end of the middle rib layer 6 overlaps and is aligned with the rear end of the middle layer 4. During implementation, the rear end of the middle rib layer 6 can also maintain a small distance from the rear end of the middle layer 4.

Thereby, when the user wears the shoe cover 9 and allows the rear end of the plurality of fiber layers 10 to swing relative to the front end, different shapes can be formed in different areas of the fins through the stacking and combination of the plurality of fiber layers of different shapes. The stacking thickness produces different strength and softness distributions, which can reduce the overall weight and produce greater propulsion effect under the requirement of sufficient strength.

Please refer to Figures 3 and 4, which are the second embodiment of the fin plate structure 1 of the present invention. The difference from the first embodiment is that the present invention further includes a support layer 8 and a third rectangular plate. 80. The support layer 8 is a whole piece of woven carbon fiber plate. The support layer 8 is located at the front end of the middle rib layer 6, and the support layer 8 and the middle rib layer 6 are located on the same plane; after the support layer 8 is divided by shape, its It has a fourth rectangular plate 81 and a concave plate 82 extending backward from the rear end of the fourth rectangular plate 81; the fourth rectangular plate 81 is pasted and overlapped above the second rectangular plate 52 of the second fiber layer 5, and the concave plate 82 The center of the rear end is recessed and has protruding bent edges 83 on the left and right sides, so that after matching the first right-angled triangular plate 33 and the second right-angled triangular plate 53, the left and right sides of the fin plate can be increased. The intensity gradually decreases from the front end to the rear end.

The third rectangular plate 80 is a woven carbon fiber plate. The third rectangular plate 80 is sandwiched between the first rectangular plate 32 of the first fiber layer 3 and the bottom layer 2 . The third rectangular plate 80 and the first rectangular plate 32 have the same properties. The size and shape are used to increase the strength of the front end of the fin plate.

When implemented, the above-mentioned first embodiment and second embodiment are respectively different combination structures of a single fin board; as shown in Figure 5, it has two sets of multiple fiber boards included in the first embodiment, mainly including two Bottom layer (2,2'), first fiber layer (3,3'), middle layer (4,4'), second fiber layer (5,5'), middle rib layer (6, 6') and the top layer (7,7'), whereby two fin boards can be formed at the same time and then cut for use. As shown in Figure 6, there are two sets of fiber boards included in the second embodiment, which further include two support layers (8, 8') and a third rectangular board (80, 80') connected in parallel, whereby After a single pressure hardening process, a pair of fin plates are formed at the same time to save processes and meet actual use and sales needs.

In summary, according to the content disclosed above, this invention can indeed achieve the expected purpose, providing a method that can form different stacking thicknesses on different areas of the fin plate to produce different strength and softness distributions. The fin plate structure that can produce sufficient structural strength, reduce the overall weight and produce good propulsion effect is of great industrial value, and I have filed an invention patent application in accordance with the law.

1: Fin board structure 10: Multiple fiber layers 2,2’: Bottom layer 3,3’: first fiber layer 31:First fiber 32: First rectangular plate 33: The first right triangle plate 34,54: hypotenuse 4,4’: middle layer 5,5’: Second fiber layer 51:Second fiber 52: Second rectangular plate 53: Second right triangle plate 6,6’: middle rib layer 7,7’:Top layer 8,8’: support layer 80,80’: The third rectangular plate 81:The fourth rectangular plate 82:Concave plate 83: Bend edge 9: Shoe covers

(Figure 1) is a top view of the first embodiment of the present invention after removing the top layer. ﹝Figure 2﹞is an exploded view of the first embodiment of this invention. ﹝Figure 3﹞is a top view of the second embodiment of the invention after removing the top layer. ﹝Figure 4﹞is an exploded view of the second embodiment of the present invention. ﹝Figure 5﹞is an exploded view of the components of the fin plate of the first embodiment of this invention that can be molded simultaneously. ﹝Figure 6﹞is an exploded view of the components of the fin plate of the second embodiment of this invention that can be molded simultaneously.

10: Multiple fiber layers

2: Bottom floor

3: First fiber layer

31:First fiber

32: First rectangular plate

33: The first right triangle plate

34,54: hypotenuse

4:Middle layer

5: Second fiber layer

51:Second fiber

52: Second rectangular plate

53: Second right triangle plate

6: Middle rib layer

7:Top layer

Claims (6)

A fin board structure, which is in the shape of a long sheet and includes a plurality of stacked and combined fiber layers. The fin board structure has a front end and a rear end in the long direction, and the front end is used to be combined with a shoe cover. The fin The short direction of the plate structure has a left side and a right side; it is characterized in that the plurality of fiber layers are stacked upward in sequence, including: a bottom layer, which is a rectangular fiberboard; A first fiber layer having a first rectangular plate and a first right-angled triangular plate extending backward from the rear end of the first rectangular plate. The front end of the first rectangular plate is aligned with the front end of the bottom layer. The first right-angled triangle The left edge of the board is aligned with the left edge of the bottom layer; An intermediate layer, which is a rectangular fiberboard, and the intermediate layer and the bottom layer have the same size and shape; A second fiber layer having a second rectangular plate and a second right-angled triangular plate extending backward from the rear end of the second rectangular plate. The front end of the second rectangular plate is aligned with the front end of the bottom layer. The second right-angled triangle The right edge of the board is aligned with the right edge of the bottom layer; A middle rib layer, which is a long strip fiber board. The middle rib layer is located in the middle of the left side and the right side of the second fiber layer. The front end of the middle rib layer overlaps the second right-angled triangular plate. The middle rib layer The rear end of the rib layer overlaps and is adjacent to the rear end of the intermediate layer; and A top layer is combined above the middle rib layer, and the top layer is a rectangular fiberboard. The top layer and the bottom layer have the same size and shape. The fin board structure of claim 1, wherein the bottom layer, the middle layer and the top layer are respectively rectangular woven fiber boards, and the first fiber layer has a plurality of straight first fibers, and the plurality of first fibers are respectively composed of The front end of the first fiber layer extends toward the direction of the rear end; the second fiber layer has a plurality of straight second fibers, and the plurality of second fibers respectively extend from the front end of the second fiber layer toward the direction of the rear end. . Such as the fin board structure of claim 1, wherein the middle rib layer is a long woven fiber board, the hypotenuse of the first right-angled triangular plate and the hypotenuse of the second right-angled triangular plate intersect with each other, and the middle rib layer The front end simultaneously overlaps this mutual intersection. For example, the fin board structure of claim 1, 2 or 3 further includes a third rectangular board sandwiched between the bottom layer and the first rectangular board, and the third rectangular board and the third rectangular board are A rectangular plate has the same size and shape. The fin plate structure of claim 4 further includes a support layer located at the front end of the middle rib layer, and the support layer and the middle rib layer are on the same plane; the support layer has a fourth rectangular shape plate and a concave plate extending backward from the rear end of the fourth rectangular plate. The fourth rectangular plate overlaps above the second rectangular plate. The rear end of the concave plate has bending edges protruding from both sides. The fin plate structure of claim 1, 2 or 3 further includes a support layer located at the front end of the middle rib layer, and the support layer and the middle rib layer are located on the same plane; the support layer has A fourth rectangular plate and a concave plate extending backward from the rear end of the fourth rectangular plate. The fourth rectangular plate overlaps above the second rectangular plate. The rear end of the concave plate has protruding bent edges on both sides. .

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