TW202003074A - Fins with secondary blade set - Google Patents

Abstract

Fins with secondary blade set including a foot pocket portion, a main blade and a secondary blade set is provided. The foot pocket portion is used to fit a user's foot. The main blade includes a first end and a second end, the first end is fixed to the foot pocket portion and the second end is extended toward to a first direction that away from the foot pocket portion. The second blade set includes at least one second blade which is disposed on the main blade via a fix portion.

Description

Fins with secondary blades

The invention relates to a fin shoe, in particular to a fin shoe used for snorkeling or diving sports and having a secondary blade group.

When snorkeling, diving and other water sports, in order to generate enough propulsion power, people will wear flippers to increase the kick area. As shown in Figure 1, the flat-type flippers 40 (or paddle-type flippers) currently in use on the market, after the user wears the water, swing their feet up/down to kick the water (when the user is facing At the bottom of the water, in the direction of the water surface/bottom), the water will generate a resistance to the webbed portion of the flippers to bend the webbed portion, and then the webbed portion exerts a force on the water for use by the recovery of the material and structure of the webbed portion. The person can move forward in the water.

However, regardless of the user's kicking skills, kicking, leg strength, or the use of fins with different ribs, cavities, etc., as long as it is a flat fin, the webbed surface of its webbed portion will kick the water When the water resistance of different directions and sizes is disturbed, the phenomenon of shaking, tilting, swaying, etc. is affected and the propulsion efficiency is affected (as shown in Figure 1), so that users have to spend a lot of physical strength and legs when wearing this type of flippers Force, while increasing the body's oxygen consumption.

Although some manufacturers have designed lighter and softer fins or split-groove fins (or bifurcated fins) to solve the above deficiencies, and thus reduce the burden on the legs and reduce the body during kicking The effect of oxygen consumption, however, when this type of flippers encounters a flow zone in the sea, its propulsive force is obviously insufficient, and it is difficult to quickly help the user to dissipate a specific sea area and form a safety concern.

In view of this, how to avoid the shaking, tilting, and swaying phenomenon of the flippers webbed surface when kicking the water, while maintaining or increasing the propulsive force during kicking, is a problem to be solved by the industry.

An object of the present invention is to provide a flipper with a sub-blade set, which can reduce the burden on the user's legs during underwater activities and provide sufficient or more enhanced propulsion.

To achieve the above purpose, the flippers of the present invention include a foot pocket, a main blade, and a primary blade set. The foot pocket is used for a user's foot to fit in; the main blade has a first end and a second end, the first end is fixed to the foot pocket, and the second end faces a first away from the foot pocket The direction extends; the secondary blade group has at least one blade, and the at least one blade is disposed on the main blade by a fixing portion.

In order to achieve the above purpose, the secondary blade set of the flippers of the present invention is integrally formed with the main blade.

To achieve the above purpose, an angle is formed between at least one blade and the main blade of the flippers of the present invention, and the angle is between 0 degrees and 90 degrees.

To achieve the above purpose, the main blades of the flippers of the present invention have an upper surface facing the user and a lower surface opposite to the upper surface. When at least one blade is a multiple blade, the multiple blades correspond to each other or They are arranged on the upper surface and the lower surface in a staggered manner.

In order to achieve the above object, the main blade of the flippers of the present invention further includes at least one fixing hole. The at least one fixing hole is provided for the fixing portion of at least one blade to penetrate, so that at least one blade is disposed on the main blade.

To achieve the above purpose, the main blade of the flippers of the present invention has an upper surface facing the user and a lower surface opposite to the upper surface, and the fixing portion is provided on the upper surface by means of locking, snapping or bonding Or at least one of the lower surfaces.

In order to achieve the above purpose, the first length of the main blade of the flippers of the present invention extending in the first direction is not equal to the second length of the blade extending in the first direction at least once.

In order to achieve the above object, the secondary blade set of the flippers of the present invention is arranged at 1/4 to 3/4 of a first length of the main blade by the fixing portion.

To achieve the above purpose, the secondary blade set of the flippers of the present invention has a height perpendicular to the main blade, and the height is at least 40 mm.

To achieve the above purpose, the secondary blade set of the flippers of the present invention has a blade thickness, and the blade thickness is thinner at one end away from the foot pocket portion and closer to the other end closer to the foot pocket portion.

To achieve the above purpose, the blade thickness of the secondary blade set of the flippers of the present invention is between 3 mm and 15 mm.

To achieve the above purpose, the material of the secondary blade set of the flippers of the present invention includes metal.

To achieve the above purpose, the secondary blade set of the flippers of the present invention can extend along a second direction, and an angle is interposed between the second direction and the first direction, and the angle is between 0 degrees and 45 degrees .

In order to achieve the above object, the secondary blade set of the flippers of the present invention has an outer contour or a cross-sectional shape, and the outer contour or the cross-sectional shape is fin-like, triangular, trapezoidal, rectangular, L-shaped or S-shaped.

In order to make the above purpose, technical features and advantages more comprehensible, the following is a detailed description with preferred embodiments and accompanying drawings.

FIG. 2 is a schematic perspective view of the flippers 10 according to a preferred embodiment of the present invention. The flippers 10 have a foot pocket 100, a main blade 200, and a primary blade set 300. The technical contents of each element are described in order as follows.

The foot bag part 100 can be used for a user to put his foot in the water activity of diving or snorkeling, and the foot bag part 100 can be selected as a covered foot bag part according to the habits of the user (as shown in FIG. 3A Display), or open foot pockets (as shown in Figure 3B). The main blade 200 has a first end 210 and a second end 220. The first end 210 is fixed to the foot pocket 100, and the second end 220 extends in a first direction D1 away from the foot pocket 100. The secondary blade group 300 has at least one primary blade 310 and is disposed on the main blade 200 by a fixing portion 312.

As shown in FIG. 4, the main blade 200 has an upper surface 202 and a lower surface 204 opposite to the upper surface 202 (corresponding to the instep and sole of the user, respectively). The upper surface 202 and the lower surface 204 may have a plurality of ribs and Plural grooves to assist in diversion. The secondary blade group 300 may be disposed on the upper surface 202 and the lower surface 204 of the main blade 200 at the same time, or on one of the upper surface 202 or the lower surface 204 of the main blade 200, and the secondary blade group 300 may have Similar rib and groove structure (not shown).

In detail, the secondary blade set 300 can have various setting methods according to the needs of different water activities of the user. As shown in FIGS. 5A to 5G, at least one primary blade 310 of the secondary blade group 300 may be a single primary blade 310 or two secondary blades 310, all of which are mounted on the upper surface 202 (eg, 5A Figure and Figure 5B); at least one blade 310 can also be the appearance of two or more secondary blades 310, and are located opposite each other on the upper surface 202 and the lower surface 204 (as shown in Figure 5C to (Shown in FIG. 5E); or, at least one blade 310 may be two or more secondary blades 310 arranged on the upper surface 202 and the lower surface 204 in a staggered manner (as shown in FIG. 5F); or Therefore, the number of the at least one primary blade 310 is more than two, and the secondary blades 310 ′ which are smaller in size are aligned on the upper surface 202 (three aligned secondary blades 310 ′ shown in FIG. 5G ). In this way, by changing the number and configuration of the secondary blades 310, the flippers 10 can provide different levels of diversion effect, reduce or eliminate the disturbance of water resistance, and maintain or enhance the use compared to the existing technology The efficiency of the propeller in the water.

In addition, in the present invention, a first length L1 of the main blade 200 extending along the first direction D1 may not be equal to a second length L2 of each secondary blade 310 of the secondary blade group 300 extending along the first direction D1 . That is, the second length L2 of the secondary blade 310 may be approximately the same length as the main blade 200 as shown in FIG. 2 or more important than the main blade as shown in FIG. The blade 200 is long, so that more contact area is added when kicking water, and the propulsion efficiency is increased. In addition, as shown in FIG. 6B, in order to enhance the stability of the main blade 200 when kicking water, the second length L2 of the secondary blade 310 may also be shorter than the first length L1 of the main blade 200 to avoid the main blade 200 kicking water The phenomenon of shaking, tilting, and turning during time, and thereby reducing the kick resistance and reducing leg fatigue.

The main blade 200 and the sub-blade group 300 can be integrally formed as shown in FIG. 2 in manufacturing (for example, integrally formed by a single material or integrally formed by two or more materials), or can be formed separately The appearance of mutual assembly.

When the main blade 200 and the sub-blade group 300 are shown in an assembled state, the main blade 200 may further include at least one fixing hole 206, so that at least one fixing portion 312 of the blade 310 can penetrate at least one fixing hole 206 for at least one time The blade 310 is provided on the main blade 200. In a word, as shown in FIG. 7A, the secondary blade 310 may be made of a soft material, so that the fixing portion 312 can be locked in the fixing hole 206 through the fixing hole 206. Or, as shown in FIG. 7B, the fixing portions 312 of the corresponding secondary blades 310 can be connected and buckled with each other, so they can pass through the fixing holes 206 to be fixed on the main blade 200, respectively. Or as shown in FIG. 7C, the main blade 200 may be provided with a keyhole, groove or tenon, so that at least once the fixing portion 312 of the blade 310 may be locked, snapped or glued on the upper surface 202 Or at least one of the lower surfaces 204, so that the user can assemble different secondary blades 310 on the main blade 200 according to requirements.

Please continue to refer to FIG. 8, in a preferred embodiment, the fixing portion 312 of the secondary blade 310 is disposed at 1/4 to 3/4 of a first length L1 of the primary blade 200, to It has a better water cutting position.

In addition, as shown in FIGS. 9A to 9C, the at least one blade 310 has a height H perpendicular to the main blade 200 (the height H extends upward from the upper surface 202 or downward from the lower surface 204), and the height At least 40 mm to have a sufficient water-cutting effect, so that the water flow can smoothly pass through the main blade 200, reducing the shaking caused by the water resistance of the main blade 200 when the user kicks the water. Also as shown in FIGS. 9A to 9C, the secondary blade 310 may further have an outer contour or a cross-sectional shape, and the shape is fin-like, triangular, trapezoidal, rectangular, L-shaped, or S-shaped to achieve Different effects of water cut and swing.

Please continue to refer to FIG. 10A. The secondary blade set 300 may have a blade thickness ranging from 3 mm to 15 mm. The blade thickness is horizontal, and one end away from the foot pocket 100 is closer to the foot pocket The other end of the portion 100 is thin; or as shown in FIG. 10B, in the vertical direction, one end away from the main blade 200 is thinner than the other end closer to the main blade 200; more, it can also be made by using materials of different hardness at the same time To make the end far away from the foot pocket 100 or away from the main blade 200 softer, so that the end swings softly with the water flow like a fin, so that the water flow can flow through the main blade 200 more smoothly, reducing the cause of the main blade 200 swinging Tilt or sway caused by water resistance. The material of the secondary blade set 300 may further include metal, for example, a metal sheet with a thickness of less than 1 mm can also achieve this effect (as shown in FIG. 10C).

Please refer to FIG. 11A and FIG. 11B. From the perspective of the rear view, in addition to the installation of the blade 310 at least once perpendicular to the main blade 200, at least one blade 310 may also be arranged at an angle A with the main blade 200, and Angle A is between 0 degrees and 90 degrees.

On the other hand, from a top-view angle, as shown in FIG. 12A, at least one blade 310 can extend along a second direction D2, and an angle A2 is interposed between the second direction D2 and the first direction D1, the angle A2 It is between 0 degrees and 45 degrees, or forms a curved arc toward the second direction D2 (as shown in Figure 12B).

Please refer to FIG. 13 and FIG. 9A at the same time, at least once the blade 310 except the fixing portion 312 and the main blade 200 are connected to each other, the secondary blade 310 except the fixing portion 312 may not be limited to the swing direction of the main blade 200 ( Usually it swings up and down), randomly swinging according to the direction of the water flow (usually swinging left and right), and the swing angle can be greater than 90 degrees.

In this way, through the setting of the secondary blade group 300, the user can surely cut the water while wearing the flippers 10 to carry out water activities, so that the water flow is divided by the secondary blade 310 and smoothly passes through the webbed surface of the main blade 200, not to the webbed The surfaces are pressed against each other to form a disturbance resistance, which reduces the tilt and sway of the main blade in the prior art when kicking the water, and provides a stable propulsion for the user (as shown in Figure 14). At the same time, the secondary blade group 300 can be oscillated and twisted at random in a direction different from the oscillating direction of the main blade 200, thereby increasing the area in contact with water and strengthening the propulsive force when oscillating.

In addition, the fin shoes 10 provided with the sub-blade set 300 of the present invention can generate a propulsive force even if it swings in a manner other than kicking water up and down (such as frog kicking), making it easier for users The ground can be adjusted slightly for the amount of advancement and speed required, making it easier for users to observe aquatic life.

In other words, the advantage of the flippers 10 equipped with the sub-blade group 300 of the present invention is that, without changing the softness of the main blade 200 to maintain the original propulsive force, when the user is active in diving or snorkeling water, The kicking action can have enough water feeling, and therefore feel more relaxed and smooth, and reduce the difficulty of operation (for example, the user can easily move in the water in a more difficult posture, not limited to the user Swimming skills), which reduces the user's power and oxygen consumption, and improves the propulsion efficiency.

The above embodiments are only used to exemplify the implementation of the present invention and to explain the technical features of the present invention, not to limit the scope of protection of the present invention. Any changes or equivalence arrangements that can be easily completed by those familiar with this technology belong to the scope claimed by the present invention, and the scope of protection of the rights of the present invention shall be subject to the scope of patent application.

10‧‧‧Flippers 100‧‧‧Foot pocket 200‧‧‧Main blade 206‧‧‧Fixed hole 210‧‧‧First end 220‧‧‧Second end 300‧‧‧Second blade group 310‧‧‧ Secondary blade 312‧‧‧Fixed part 40‧‧‧Flat fins A‧‧‧Angle A2‧‧‧Angle AA‧‧‧Line segment BB‧‧‧Line segment D1‧‧‧First direction D2‧‧‧Second direction H‧‧‧ height L1‧‧‧ first length L2‧‧‧ second length

Figure 1 is a perspective schematic view of the water flow state of a general flat fins during use; Figure 2 is a perspective schematic view of the fins of the present invention; Figures 3A and 3B are the types of foot pockets of the general flat fins Fig. 4 is a three-dimensional schematic view of the fins of the present invention having plural ribs; Figs. 5A to 5G are three-dimensional schematic views of the fins of the present invention with different secondary blade configurations; Figs. 6A and 6B are The fins of the present invention have three-dimensional schematic diagrams of secondary blades with different lengths; FIGS. 7A to 7C are three-dimensional schematic views of the installation manner of the fins with different secondary blade groups of the present invention; FIG. 8 is the fins of the present invention. Figure 9A to Figure 9C are schematic cross-sectional views of the fins shown in Figure 8 along the line AA; Figure 10A is a schematic top view of the secondary blades of the fins of the present invention having different thicknesses; 10C is a schematic cross-sectional view along the line BB of the secondary blades of the fins shown in FIG. 10A having different thicknesses; FIGS. 11A and 11B are the sections along the line BB of the secondary blades of the fins of the present invention having different inclination angles Figures 12A and 12B are top schematic views of the secondary blade group of the flippers of the present invention having different extension directions; Figure 13 is a perspective schematic view of the secondary blades of the flippers of the present invention swinging during use; and 14 is a three-dimensional schematic diagram of the water flow state of the flippers of the present invention when in use.

10‧‧‧ flippers

100‧‧‧foot bag department

200‧‧‧Main blade

210‧‧‧The first end

220‧‧‧The second end

300‧‧‧times blade group

310‧‧‧ blades

312‧‧‧Fixed Department

D1‧‧‧First direction

Claims (14)

A fin shoe with a sub-blade set, comprising: 　　 a foot bag part for a user's foot to fit in; 　　 a main blade with a first end and a second end, the first end and the foot The bag portion is fixed, and the second end extends in a first direction away from the foot bag portion; and the primary blade set has at least one blade, and the at least one blade is disposed on the main blade by a fixing portion. The flippers according to claim 1, wherein the secondary blade group is integrally formed with the main blade. The flippers according to claim 1, wherein an angle is formed between the at least one blade and the main blade, and the angle is between 0 degrees and 90 degrees. The flippers according to claim 1, wherein the main blade has an upper surface facing the user and a lower surface opposite to the upper surface, when the at least one blade is a plurality of blades, the secondary blades are Corresponding to each other or staggered with each other are respectively disposed on the upper surface and the lower surface. The flippers according to claim 1, wherein the main blade further comprises at least one fixing hole for the fixing portion of the at least one blade to penetrate, so that the at least one blade is disposed on the main blade on. The flippers according to claim 1, wherein the main blade has an upper surface facing the user and a lower surface opposite to the upper surface, and the fixing portion is provided in a manner of locking, snapping or bonding At least one of the upper surface or the lower surface. The flippers of claim 1, wherein a first length of the main blade extending in the first direction is not equal to a second length of the at least one blade extending in the first direction. The flippers according to claim 1, wherein the fixing portion of the secondary blade set is arranged at 1/4 to 3/4 of a first length of the main blade. The flippers according to claim 1, wherein the secondary blade set has a height perpendicular to the main blade, and the height is at least 40 mm. The flippers according to claim 1, wherein the secondary blade set has a blade thickness, and the blade thickness is thinner at one end away from the foot pocket portion and closer to the other end close to the foot pocket portion. The flippers according to claim 10, wherein the blade thickness is between 3 mm and 15 mm. The flippers according to claim 1, wherein the material of the secondary blade set includes metal. The flippers according to claim 1, wherein the secondary blade set can extend along a second direction with an angle between the second direction and the first direction, and the angle is between 0 degrees and 45 degrees between. The flippers according to claim 1, wherein the secondary blade has an outer contour or a cross-sectional shape, and the outer contour or the cross-sectional shape is fin-like, triangular, trapezoidal, rectangular, L-shaped or S-shaped.

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