A fin structure

Abstract

A fin structure, which has a long sheet-shaped fin board, the front end of the fin board is used to combine with a shoe cover, the fin board has a cross fiber board, a first light-transmitting layer is stacked downward and combined with a first upper surface of the cross fiber board, the lower surface of the first light-transmitting layer has a first pattern layer, the first pattern layer is sandwiched between the first light-transmitting layer and the first upper surface of the cross fiber board; and a second light-transmitting layer has the same shape and material as the first light-transmitting layer, the second light-transmitting layer is stacked upward and combined with a first lower surface of the cross fiber board, thereby reducing the overall weight, generating sufficient strength, preventing distortion and deformation, and allowing the first pattern layer to maintain its original appearance after long-term use.

Description

Technical Field

[0001] This work relates to a sling structure, specifically one that is strong enough to reduce overall weight while allowing the pattern on the sling to maintain its original appearance. Prior Technology

[0002] Whether you're diving with an oxygen tank or snorkeling on the surface, wearing fins effectively increases propulsion in the water or on the surface. Whether it's "slip-on fins" that you slip directly onto your feet or "adjustable fins" that require wearing overshoes first, fins made of rubber, PU, ​​or other composite plastics don't significantly affect kicking efficiency. As long as the material is strong enough and not too soft, they still provide decent propulsion.

[0003] To reduce overall weight while maintaining sufficient strength and elasticity, current fins typically employ a multi-layered fiber structure for their long fin plates. This involves stacking multiple fiber layers of the same size and shape, bonding them with resin, and then hardening them through heating and pressurization. The resulting fin plate possesses sufficient material strength while maintaining propulsion during swooping without being too soft. Furthermore, to enrich the colors of the fin plates, various patterns and colors are often applied to their surface through printing, pasting, or spraying. However, in actual use, after prolonged use, these patterns and colors are prone to wear and tear or seawater erosion, causing them to lose their original appearance. Summary of the Invention

[0004] In view of this, in order to provide a structure and method that differs from conventional technologies and to improve the aforementioned shortcomings, the creators have accumulated many years of experience and continuous research and development, resulting in this creation.

[0005] One objective of this invention is to provide a fin structure that solves the problem that, after prolonged use, the patterns or colors on the surface of conventional fins easily lose their original appearance due to wear or erosion. This is achieved by bonding a first translucent layer and a second translucent layer to the upper and lower surfaces of a cross-fiberboard, respectively, and bonding a first pattern layer to the surface beneath the first translucent layer. This fin structure, with the first pattern layer sandwiched between the first translucent layer and the cross-fiberboard, reduces overall weight, generates sufficient strength, prevents twisting and deformation, and allows the first pattern layer to maintain its original appearance, thus ensuring product quality.

[0006] To achieve the aforementioned creative purpose, the swan-like structure of this invention features a long, flat swan-like plate with a front end and a rear end along its length. The front end of the swan-like plate is attached to a shoe cover. Its main technical features are as follows: the swan-like plate includes a cross-fiber plate, a first translucent layer, a first pattern layer, and a second translucent layer. The cross-fiber plate has a first upper surface and a first lower surface; the first translucent layer is stacked downwards and attached to the first upper surface of the cross-fiber plate; the lower surface of the first translucent layer has a first pattern layer, which is sandwiched between the first translucent layer and the cross-fiber plate; and the second translucent layer has the same shape and material as the first translucent layer, and is stacked upwards and attached to the first lower surface of the cross-fiber plate.

[0007] In practice, the cross-fiberboard, the first light-transmitting layer, and the second light-transmitting layer have the same size and shape.

[0008] In practice, the cross-fiberboard is a carbon fiber board, and the first and second light-transmitting layers are long sheets of polyethylene terephthalate (PET) boards.

[0009] In practice, this invention further includes a second pattern layer, which is stacked and bonded to the upper surface of the second light-transmitting layer, and is sandwiched between the second light-transmitting layer and the cross-fiberboard.

[0010] In practice, this creation further includes a first covering layer and a second covering layer, the first covering layer being stacked downwards and bonded to the upper surface of the first light-transmitting layer, and the second covering layer being stacked upwards and bonded to the lower surface of the second light-transmitting layer.

[0011] In practice, the cross-laminated fiberboard includes a top layer, an intermediate layer and a bottom layer stacked together in sequence. The top layer, intermediate layer and bottom layer are all long fiberboards. The top layer has a first length in the longitudinal direction, the intermediate layer has a second length in the longitudinal direction and the bottom layer has a third length in the longitudinal direction. The first length is shorter than the second length and the third length, and the third length is shorter than the second length.

[0012] In practice, the top layer and the middle layer have the same size and shape at one end along their length, allowing the top layer to be fully stacked and attached to one end of the middle layer.

[0013] In practice, the upper layer has a first width in the short direction, and the middle layer has a second width in the short direction, with the first width being shorter than the second width.

[0014] In practice, this invention further includes a support rib layer, which is a long strip of fiberboard. The upper layer has a left edge and a right edge in the short direction. The support rib layer is stacked and combined with the upper layer. The support rib layer is located in the middle of the left edge and the right edge of the upper layer.

[0015] To further understand this invention, the following preferred embodiments are provided, along with figures and figure numbers, to explain in detail the specific components of this invention and the effects it achieves: Simple Explanation of the Diagram

[0016] [Figure 1] is a top view schematic diagram of the first embodiment of this invention.

[0017] [Figure 2] is an exploded view of the components of the fin board in the first embodiment of this invention.

[0018] [Figure 3] is an exploded view of the components of the cross-fiberboard in the first embodiment of this invention.

[0019] [Figure 4] is an exploded view of the cross-fiberboard components of the second embodiment of this invention. Implementation

[0020] The fin structure of this invention has a fin plate, the front end of which is attached to a shoe cover. The fin plate mainly includes a cross-fiber board, a first light-transmitting layer, a first pattern layer, and a second light-transmitting layer. The cross-fiber board has a first upper surface and a first lower surface. The first light-transmitting layer is stacked downwards and attached to the first upper surface of the cross-fiber board. The lower surface of the first light-transmitting layer has a first pattern layer, which is sandwiched between the first light-transmitting layer and the cross-fiber board. The second light-transmitting layer has the same shape and material as the first light-transmitting layer. The second light-transmitting layer is stacked upwards and attached to the first lower surface of the cross-fiber board.

[0021] Please refer to Figure 1. The structure 1 of this invention is in the shape of a long plate, which has a long plate-shaped fin plate 10. The fin plate 10 has a front end and a rear end along its length. The front end of the fin plate 10 is connected to a shoe cover 12 via a bend 11, so that when the user wears the shoe cover 12, the rear end of this invention swings relative to the front end to increase the forward thrust in the water or on the water surface.

[0022] Figure 2 shows a first embodiment of the frog shoe structure 1 of this invention. The frog shoe plate 10 mainly includes a first covering layer 2 and a first light-transmitting layer 3, a first pattern layer 4, a cross-fiberboard 5, a second pattern layer 6, a second light-transmitting layer 7, and a second covering layer 8, which are stacked and bonded sequentially downwards from below the first covering layer 2. The first covering layer 2, the first light-transmitting layer 3, the cross-fiberboard 5, the second light-transmitting layer 7, and the second covering layer 8 have the same size and shape, and the first covering layer 2 and the second covering layer 8 are rectangular fiberglass boards. The first covering layer 2 is stacked downwards and bonded to the upper surface of the first light-transmitting layer 3, and the second covering layer 8 is stacked upwards and bonded to the lower surface of the second light-transmitting layer 7, thereby achieving the effect of light transmission and protecting the first light-transmitting layer 3 and the second light-transmitting layer 7 respectively.

[0023] The cross-fiberboard 5 has a first upper surface 51 and a first lower surface 52 on its upper and lower sides, respectively. The first light-transmitting layer 3 and the second light-transmitting layer 7 have the same shape and material. In this embodiment, the first light-transmitting layer 3 and the second light-transmitting layer 7 are both long and transparent polyethylene terephthalate (PET) sheets. The lower surface of the first light-transmitting layer 3 is stacked and bonded with a first pattern layer 4, so that the first pattern layer 4 is sandwiched between the lower surface of the first light-transmitting layer 3 and the first upper surface 51 of the cross-fiberboard 5. In practice, the first pattern layer 4 has at least one pattern or color. The upper surface of the second light-transmitting layer 7 is stacked and bonded with a second pattern layer 6, so that the second pattern layer 6 is sandwiched between the upper surface of the second light-transmitting layer 7 and the first lower surface 52 of the cross-fiberboard 5. In practice, the second pattern layer 6 has at least one pattern or color.

[0024] As shown in Figures 2 and 3, the cross-fiberboard 5 is a stacked board, comprising a top layer 53, a middle layer 54, and a bottom layer 55 stacked sequentially from top to bottom. The top layer 53, middle layer 54, and bottom layer 55 are all woven fiberboards. In this embodiment, the top layer 53, middle layer 54, and bottom layer 55 are all elongated carbon fiber boards, each formed by bonding and hardening with carbon fiber cloth and resin. In practice, any carbon fiber board can also be formed by stacking two carbon fiber cloths, each with diagonally arranged carbon fibers, allowing the diagonally arranged carbon fibers of the two layers to intersect, thereby generating high structural strength.

[0025] The upper layer 53 has a first length L1 in its longitudinal direction, the middle layer 54 has a second length L2 in its longitudinal direction, and the lower layer 55 has a third length L3 in its longitudinal direction. The first length L1 is shorter than the second length L2 and the third length L3, and the third length L3 is shorter than the second length L2. In addition, one end of the upper layer 53 and the middle layer 54 in their longitudinal directions have the same size and shape, so that the upper layer 53 can be fully stacked and bonded to the surface of one end of the middle layer 54.

[0026] Therefore, when the user wears the shoe cover 12 and swings the rear end of the swivel plate 10 relative to the front end, different stacking thicknesses can be formed in different areas of the swivel plate through the stacking combination of the upper layer 53, middle layer 54 and lower layer 55 of different lengths, thereby producing different strength and softness distributions. Under the requirement of sufficient strength, the overall weight can be effectively reduced. The first pattern layer 4 is sandwiched between the lower surface of the first light-transmitting layer 3 and the first upper surface 51 of the cross-fiber board 5, and the upper surface of the second light-transmitting layer 7 and the first pattern layer 55 are sandwiched between the lower surface of the first light-transmitting layer 3 and the first upper surface 51 of the cross-fiber board 5. The second pattern layer 6 is sandwiched between the lower surfaces 52, and through the protection of the first light-transmitting layer 3 and the second light-transmitting layer 7, it can still prevent wear after long-term use, thereby maintaining the original appearance of the first pattern layer 4 and the second pattern layer 6 to ensure product quality. Furthermore, by bonding the first light-transmitting layer 3 to the first upper surface 51 of the cross-fiberboard 5 and the second light-transmitting layer 7 to the first lower surface 52 of the cross-fiberboard 5, and by having the same shape and material for the first light-transmitting layer 3 and the second light-transmitting layer 7, the fin board 10 can be kept flat to prevent twisting and deformation.

[0027] Figure 4 shows a second embodiment of the frog-shoe structure 1 of this invention. The difference between this embodiment and the first embodiment is that: the upper layer 53' of the cross-fiber plate 5' has a first width W1 in the short direction, and the two sides of the first width W1 have a left edge 511 and a right edge 512 respectively; the middle layer 54 has a second width W2 in the short direction, and the first width W1 is shorter than the second width W2; a support rib layer 56 is overlapped and combined on the upper layer 53. The support rib layer 56 is a long strip fiber plate, and the support rib layer 56 is located in the middle of the left edge 511 and the right edge 512 of the upper layer 53, and is parallel to the left edge 511 and the right edge 512, thereby increasing the strength of the front end of the cross-fiber plate 5' and generating stronger swing support at the center line of the cross-fiber plate 5', that is, increasing the bending strength, thereby producing a smoother and greater rebound propulsion effect.

[0028] In conclusion, based on the content disclosed above, this invention can indeed achieve the intended purpose, providing a swan-like structure that not only allows the first and second patterned layers to maintain their original appearance to ensure product quality, but also enables the formation of different stacking thicknesses in different areas of the cross-fiberboard to produce different strength and flexibility distributions, and reduces the overall weight. At the same time, it can increase the rebound propulsion force through the combination of the supporting rib layer and the top layer. It has great industrial application value, and therefore, an invention patent application is filed in accordance with the law.

[0029] 1: Frog Shoe Structure

[0030] 10: Frog Shoe Board

[0031] 11: Bending section

[0032] 12: Shoe covers

[0033] 2: First drapery

[0034] 3: First light-transmitting layer

[0035] 4: First Pattern Layer

[0036] 5,5': Cross-linked fiberboard

[0037] 51: First upper surface

[0038] 511: Left edge

[0039] 512: Right edge

[0040] 52: First lower surface

[0041] 53,53': Upper layer

[0042] 54: Intermediate layer

[0043] 55: Lower layer

[0044] 56: Supporting rib

[0045] 6: Second pattern layer

[0046] 7: Second light-transmitting layer

[0047] 8: Second drapery

[0048] L1: First Length

[0049] L2: Second Length

[0050] L3: Third Length

[0051] W1: First width

[0052] W2: Second width

Claims

1. A shin guard structure having a long, flat shin guard plate having a front end and a rear end along its length, the front end of the shin guard plate being attached to a shoe cover; Its characteristic is that the frog shoe plate includes: A cross-fiberboard having a first upper surface and a first lower surface; a first pattern layer; A first light-transmitting layer, the lower surface of which is stacked and bonded with the first pattern layer, the first light-transmitting layer being stacked downward and bonded to the first upper surface of the cross-fiberboard, thereby sandwiching the first pattern layer between the lower surface of the first light-transmitting layer and the first upper surface of the cross-fiberboard; a second pattern layer; a second light-transmitting layer having the same shape and material as the first light-transmitting layer, the upper surface of which is stacked and bonded with the second pattern layer, the second light-transmitting layer being stacked upward and bonded to the first lower surface of the cross-fiberboard, thereby sandwiching the second pattern layer between the upper surface of the second light-transmitting layer and the first lower surface of the cross-fiberboard; a first cladding layer, the light-transmitting first cladding layer being stacked downward and bonded to the upper surface of the first light-transmitting layer; and a second cladding layer, the light-transmitting second cladding layer being stacked upward and bonded to the lower surface of the second light-transmitting layer.

2. The fin structure of claim 1, wherein the cross-fiberboard, the first light-transmitting layer and the second light-transmitting layer have the same size and shape.

3. The fin structure of claim 1, wherein the cross-fiber plate is a carbon fiber plate, and the first light-transmitting layer and the second light-transmitting layer are respectively long sheet-shaped polyethylene terephthalate (PET) sheets.

4. The fin structure of any one of claims 1 to 3, wherein the cross-fiberboard includes a top layer, a middle layer and a bottom layer stacked together in sequence, the top layer, the middle layer and the bottom layer being elongated fiberboards, the top layer having a first length in its longitudinal direction, the middle layer having a second length in its longitudinal direction, and the bottom layer having a third length in its longitudinal direction, the first length being shorter than the second length and the third length, and the third length being shorter than the second length.

5. The fin structure of claim 4, wherein the upper layer and the middle layer have the same size and shape at one end along their longitudinal direction, allowing the upper layer to be fully stacked and attached to that end of the middle layer.

6. The fin structure of claim 4, wherein the upper layer has a first width in the short direction, the middle layer has a second width in the short direction, and the first width is shorter than the second width.

7. The fin structure of claim 6 further includes a support rib layer, which is a long strip of fiberboard, the upper layer having a left edge and a right edge in the short direction, the support rib layer being stacked and bonded to the upper layer, the support rib layer being located at the middle position between the left edge and the right edge of the upper layer.

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