WO2022092329A1

WO2022092329A1 - Swim fin for underwater leisure activities

Info

Publication number: WO2022092329A1
Application number: PCT/KR2020/014644
Authority: WO
Inventors: 조국
Original assignee: 조국
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2022-05-05
Also published as: KR102230707B1

Abstract

The present invention relates to a swim fin for underwater leisure activities, which is conveniently worn and used, and enables strong propulsive force to be gained when swimming by inhibiting the generation of reverse thrust. The swim fin for underwater leisure activities, according to the present invention, may comprise: a body part which is shaped into an arch having a U-shaped opening part formed, and which has the rear end portion thereof connected to the rear end portion of a shoe so as to be relatively rotatable with respect thereto so that, when the body part is rotated upward with respect to the rear end portion of the shoe, the body part is worn so as to be inclined downwardly from the front surface of the shin area of a user toward the rear end portion of the shoe so that the front portion of the opening part tightly adheres to the front surface of the shin area, and the rear portion of the opening tightly adheres to the heel area of the user or the rear end portion of the shoe, and, when the body part is rotated downward with respect to the rear end portion of the shoe, the body part is seated on the upper surface of the shoe; and a binding unit which, when the body part is rotated upward with respect to the rear end portion of the shoe and thus tightly adheres to the shin area, binds the body part to the leg so as to be releasable from the leg.

Description

flippers for water leisure

The present invention relates to flippers that can be attached to shoes, and more particularly, it can be attached to footwear such as aqua shoes and sandals so that walking is convenient and excellent propulsion can be secured in water, and can be easily attached to shoes and users' legs It relates to a detachable flippers for underwater leisure.

As the industrial society develops, underwater leisure activities such as snorkeling and skin scuba have increased, and accordingly flippers that can obtain propulsion in the water have been widely used.

Flippers are equipment worn for swimming or marine leisure activities such as snorkeling and skin scuba. It is a tool that a user obtains propulsion by rowing the flippers using their legs and feet.

A general flippers, as shown in FIG. 1, is formed integrally with the shoe part 2, which is formed in the form of a shoe so that the user can fit the foot and fix it on the body, and the shoe part 2, and extends in the toe direction. It is composed of a fin part (1) in the form of a flat plate.

In such flippers, when the user stirs the flippers in the water while wearing the flippers on the feet, the flat-shaped fin part 1 receives drag and lift by the water, and thus the user can move forward in the water by obtaining propulsion. .

However, in order for the flippers to obtain propulsion, there must be a flat plate-shaped fin part 1 that is larger than a set width that can receive drag by water, and the flat-shaped fin part 1 is widely located on the floor when the user wears the flippers. Walking becomes uncomfortable.

In particular, when playing in the water in a valley or on the rocks, it was difficult to walk with flippers attached, and there was a risk of falling.

Republic of Korea Patent No. 10-2007892 discloses that it can be worn on the front of the user's shin, and can be combined with footwear such as aqua shoes or sandals, so that it can be easily walked on the beach or valley, and can act as a pin in the water. Shoes that combine flippers are presented.

However, as shown in FIG. 2, in the conventional flippers combined shoe 10, when a user swims while wearing flippers on the shin of the leg, a reaction force is applied to the pin portion () in the vertical direction to generate a reverse thrust force. there is a problem to be

The present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a flippers for underwater leisure that can obtain a strong driving force by suppressing the occurrence of a reverse driving force when swimming, and is convenient to wear and use. will be.

The flippers for underwater leisure according to one aspect of the present invention for achieving the above object have an arch shape in which a 'U'-shaped opening is formed, and the rear end is connected to the rear end of the shoe so as to be rotatably connected, When rotated upward with respect to the rear end of the shoe, the front part of the opening is in close contact with the front surface of the user's shin and the rear part is in close contact with the heel part or the rear end of the shoe. A body portion that is worn obliquely and is seated on the upper surface of the shoe when it is rotated downward with respect to the rear end of the shoe; and a binding unit for releasably binding the body to the leg when the body portion rotates upward with respect to the rear end of the shoe and is in close contact with the shin portion.

The flippers for water leisure according to another aspect of the present invention have an arch shape in which a 'U'-shaped opening is formed, the front part of the opening is in close contact with the front surface of the user's shin, and the rear part is the heel part or a body portion worn on the leg at an inclination downward from the front surface of the shin to the rear end of the shoe so as to be in close contact with the rear end of the shoe; and a binding unit for releasably binding the body to the leg in a state in which the body is worn on the leg.

The body portion may have a curved surface that is curved from an inner periphery of the opening to an outer periphery of the body.

The web portion may be formed of a material having elastic force at both rear sides of the body portion and expandable by the pressure of water.

The web portion may have a wrinkled shape in the width direction.

A propulsion auxiliary portion having a semi-conical shape that increases in width from front to rear may be formed on both rear sides of the body portion.

The binding unit may include a fixing band configured to wind the user's leg after passing through a band slit formed in the front part of the body, and a clamping member for separably coupling both ends of the fixing band.

The binding unit may include a fixing band made of a stretchable material supported through a band slit formed in the front part of the body to wrap the user's leg.

The rear end portion of the body portion may be rotatably connected to the rear end portion of the shoe by a coupling member connecting the rear end portion of the body portion while passing through the upper end of the rear end portion of the shoe.

After passing through the upper end of the rear end of the shoe, the coupling member may also serve as a binding unit for fixing the body to the leg while being bound to the user's leg via the front of the body.

According to the present invention, since the arch-shaped body part is mounted on the shin part of the user's leg to be inclined downward from the front to the rear, water is naturally guided rearward along the inclined surface of the body part when swimming to minimize the reverse thrust, A strong driving force can be obtained.

In addition, the body of the flippers can be rotated as needed to be worn on the shin of the user's leg or worn on shoes, and even when walking while wearing the flippers, the flippers do not interfere with walking.

1 is a perspective view showing the shape of a general flippers.

Figure 2 is a view for explaining a reverse propulsion problem that occurs in the conventional flippers combined shoes.

Figure 3 is a side view showing an example of use of the flippers for underwater leisure according to an embodiment of the present invention.

Figure 4 is a side view showing another use case of the flippers for underwater leisure shown in Figure 3;

Fig. 5 is a plan view of the flippers in the use state shown in Fig. 4;

6 is a view showing an operation example of the flippers for underwater leisure shown in FIG.

7 is a cross-sectional view of the flippers for underwater leisure shown in FIG.

8 is a cross-sectional view of flippers for underwater leisure according to another embodiment of the present invention.

9 is a perspective view showing a portion of the flippers for underwater leisure according to another embodiment of the present invention.

10 is a side view showing an example of use of flippers for underwater leisure according to another embodiment of the present invention.

11 is a side view showing another use example of the flippers for underwater leisure shown in FIG.

Fig. 12 is a plan view of the flippers in the use state shown in Fig. 11;

With reference to the accompanying drawings will be described in detail with respect to the flippers for underwater leisure according to embodiments of the present invention. Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements. In the accompanying drawings, the dimensions of the structures are enlarged than actual for clarity of the present invention, or shown reduced from reality in order to understand the schematic configuration.

Also, terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. Meanwhile, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

3 to 6 , the flippers 100 for underwater leisure according to an embodiment of the present invention include a body part 110 that is worn on a user's shin and shoes to generate a driving force when swimming, and the body and a binding unit 120 for binding the unit 110 to the user's shin.

The body portion 110 has an arch shape in which an opening 111 of a substantially 'U' shape is formed, and the rear end is connected to the rear end of the shoe 200 via the coupling member 130 to enable relative rotation. do. The user's ankle may pass through the opening 111 of the body 110 .

The body part 110 has a 'U'-shaped arch shape as viewed from above, and has a curved surface curved from the inner periphery of the opening 111 toward the outer periphery of the body 110 . The rear end of the body 110 is connected to the upper end of the rear end of the shoe 200 by the coupling member 130 so that it can rotate up and down around the rear end of the body 110 . As shown in FIG. 3 , when the body part 110 rotates upward, the body part 110 is worn inclined downward from the front surface of the shin to the rear end of the shoe 200 . At this time, the inner periphery of the opening 111 of the body portion 110 is in close contact while being inclined downward from the user's shin to the heel.

As described above, by wearing the body part 110 inclined downward from the front surface of the shin to the heel part, the reverse driving force is suppressed when swimming, and a strong driving force can be obtained. That is, as shown in FIG. 6 , when the body part 110 is mounted to be inclined rearwardly on the shin of the user's leg, water is naturally guided rearward along the inclined surface of the body part 110 when water is kicked with the foot. As a result, the reverse propulsion force is minimized and a strong propulsion force can be obtained.

And as shown in FIG. 4 , when the body part 110 rotates downward around the coupling member 130 , the body part 110 is seated on the upper surface of the shoe 200 . Therefore, when not swimming, the body 110 may be rotated downward to be seated on the upper surface of the shoe 200 to be worn.

The coupling member 130 may be formed of a string connecting the rear end of the body 110 through the upper end of the rear end of the shoe 200 after passing through the rear end of the body portion 110 . At this time, if the shoe is provided with a ring at the upper end of the rear end, the rear end of the body 110 may be connected to the upper end of the rear end of the shoe while the coupling member 130 passes through the ring. Alternatively, when the shoe 200 on which the flippers 100 is worn is a sandal, the coupling member 130 connects the rear end of the body 110 to the shoe while passing through the strip supporting the heel at the rear end of the shoe 200 . You can also connect

In this way, when the coupling member 130 is formed of a string, both ends of the coupling member 130 may be bound through a known length adjusting device 132 called a so-called chord lock or stopper. there is.

3, when the body part 110 is worn obliquely from the front surface of the shin to the rear end of the shoe 200, the front part of the body part 110 is the user's leg part by the binding unit 120. is firmly fixed on

The binding unit 120 is in the form of a long band supported by passing through the band slit 113 formed in the front portion of the body 110, and a fixing band 121 to wind the shin and calf of the user; , a clamping member 122 for detachably coupling both ends of the fixing band 121 may be provided. The clamping member 122 may be configured by applying a Velcro tape that is easy to attach and detach, but may be configured using a known buckle or clamp mechanism to obtain a stronger binding force.

The fixing band 121 may be configured to be able to adjust the length according to the thickness of the user's leg.

As shown in FIG. 4 , when the body part 110 is seated on the upper surface of the shoe 200 , the fixing band 121 may be used for binding the body part 110 to the shoe 200 .

The fixing band 121 may be made of a non-stretchable material, but differently from this, it may be made of a stretchable material with rubber or an elastic body embedded therein to facilitate length adjustment. In this case, the fixing band 121 may have a circular ring shape in which both ends are integrally connected without the clamping member 122 .

On the other hand, in order to further reduce the reverse propulsion force during swimming and further increase the propulsion force, as shown in FIG. 7 , the web portion 112 made of a flexible material and expanded by the pressure of water is provided on both rear sides of the body part 110 . can be The web portion 112 has a shape that becomes wider from the front to the rear so that when expanded, the web portion 112 becomes approximately semi-conical in shape to induce water to the rear, thereby further increasing the driving force. In order for the web portion 112 to rapidly expand and contract, the web portion 112 may be made of a flexible resin material such as rubber or silicone.

As shown in FIG. 8 , the web portion 112 may have a corrugated shape in the width direction so that the web portion 112 can more easily expand and contract.

Alternatively, as shown in FIG. 9 , a propulsion auxiliary part 114 having a semi-conical shape increasing in width from front to rear may be formed on both rear sides of the body part 110 . Here, the propulsion auxiliary part 114 is made of a solid material so that its shape is constantly maintained.

On the other hand, as shown in Figure 3, when the body portion 110 is worn obliquely in the front-rear direction on the shin portion of the leg, the inner periphery of the opening 111 of the body portion 110 is the user's shin and ankle portion, Adheres to the surface of the heel part. When swimming in this state, the body part 110 receives resistance from water, and the inner periphery of the opening 111 of the body part 110 applies a strong frictional force to the user's skin. At this time, while protecting the user's skin from the inner periphery of the opening 111 of the body 110, water escapes between the inner periphery of the opening 111 of the body 110 and the user's skin, resulting in loss of driving force. In order to prevent this from occurring, as shown in FIGS. 7 and 8, elasticity such as rubber or silicone is applied to the inner periphery of the opening 111 of the body part 110 so as to be in close contact with the shin part from the user's heel part. An adhesive material 115 made of a resin material may be additionally installed.

As described above, in the flippers 100 of the present invention, since the arch-shaped body part 110 is mounted to be inclined downward from the front to the rear on the shin part of the user's leg, water flows through the body part 110 when swimming. It is naturally guided to the rear along the side of the photo to minimize reverse thrust and obtain strong thrust. In addition, when lifting the legs during swimming, the resistance is minimized as the legs are closed, and when the legs are lowered to obtain propulsion, they spread out and guide the water backwards to obtain a large propulsion force.

In addition, by rotating the body portion 110 of the flippers 100 as needed, it can be worn on the shin of the user's leg or worn on shoes, and even when walking while wearing the flippers 100, the flippers 100. Do not interfere with this walk.

10 to 12 show flippers according to another embodiment of the present invention. In the flippers 100 of this embodiment, the coupling member 130 connecting the rear end of the body 110 serves as a binding unit. It is different from the above-described embodiment in that it is configured to be able to do so. That is, in the flippers 100 of the above-described embodiment (see FIGS. 3 to 5 ), the fixing band 121 is configured as the binding unit 120 , and the fixing band 121 is a coupling member 130 in a separate string. is configured to connect the front and rear portions of the body 110 to the upper shins and upper calves of the legs, respectively, and the upper ends of the rear end of the shoe.

However, in the flippers 100 of this embodiment, the coupling member 130 becomes a long line, passes through the upper end of the rear end of the shoe 200 , and connects the rear end of the body 110 to the rear end of the shoe 200 . , while being bound to the user's leg portion (the upper part of the shin and calf) via the front portion of the body portion 110, also serves as a binding unit for fixing the body portion 110 to the leg. Both ends of the coupling member 130 are bound through the length adjusting device 132 of a chord lock or stopper structure.

A plurality of guide holes ( The wire support 116 on which 117 is formed is integrally formed. One of the guide holes 117 of the wire support part 116 is formed to be open to the side, and as shown in FIG. It can be separated from the hole 117 and tied around the leg.

In addition, in the above-described embodiments, the rear end of the body 110 is connected to the rear end of the shoe using the coupling member 130, but unlike this, the rear end of the body 110 is not connected to the shoe. Only the body part 110 may be used by binding to the user's leg, or the rear end of the body part 110 may be used by binding the ankle part or the heel part of the leg with a string or a band.

In the above, the present invention has been described in detail with reference to the embodiments, but those of ordinary skill in the art to which the present invention pertains may make various substitutions, additions and modifications within the scope without departing from the technical spirit described above. Of course, it should be understood that such modified embodiments also fall within the protection scope of the present invention as defined by the appended claims below.

The present invention can be applied to aquatic leisure equipment such as flippers used for water play or swimming.

Claims

It has an arch shape in which a 'U'-shaped opening is formed, and the rear end is connected to the rear end of the shoe so as to be rotatably rotated, so that when the rear end of the shoe rotates upward, the front of the opening is the user's shin It is worn obliquely from the front surface of the shin to the rear end of the shoe so that it is in close contact with the front surface and the rear part is in close contact with the heel part or the rear end of the shoe, and when rotated downward with respect to the rear end of the shoe, the upper surface of the shoe a body portion to be seated; and,

a binding unit for releasably binding the body to the leg when the body is rotated upward with respect to the rear end of the shoe and is in close contact with the shin;

Including flippers for water leisure.
It has an arch shape in which a 'U'-shaped opening is formed, and the front part of the opening is in close contact with the front surface of the user's shin, and the rear part is in close contact with the heel part or the rear end of the shoe from the front surface of the shin part. The body portion is worn on the leg inclined downward toward the rear end; and,

a binding unit for releasably binding the body to the leg while the body is worn on the leg;

Including flippers for water leisure.
The flippers for underwater leisure according to claim 1 or 2, wherein the body part has a curved surface from the inner periphery of the opening to the outer periphery of the body.
[3] The flippers for underwater leisure according to claim 1 or 2, wherein the web portion is formed of a material having elastic force on both sides of the rear side of the body portion and is expanded by the pressure of water.
[Claim 5] The flippers for underwater leisure according to claim 4, wherein the web portion has a corrugated shape in the width direction.
[3] The flippers for underwater leisure according to claim 1 or 2, wherein the propulsion auxiliary parts having a semi-conical shape that increase in width from front to rear are formed on both rear sides of the body part.
According to claim 1 or 2, wherein the binding unit is a fixed band to wind the user's leg after passing through a band slit formed in the front portion of the body, and the both ends of the fixing band detachably coupled Flippers for underwater leisure including a clamping member that
The underwater leisure use according to claim 1 or 2, wherein the binding unit includes a fixing band made of a stretchable material supported through a band slit formed in the front part of the body to wrap the user's leg. flippers.
The flippers for underwater leisure according to claim 1, wherein the rear end portion of the body portion is rotatably connected to the rear end portion of the shoe by a coupling member connecting the rear end portion of the body portion while passing through the upper end of the rear end portion of the shoe.
The flippers for underwater leisure according to claim 9, wherein the coupling member passes through the upper end of the rear end of the shoe and then binds to the user's leg via the front of the body, and also functions as a binding unit for fixing the body to the leg.