KR102370786B1 - Swimming assistance apparatus - Google Patents

Abstract

The present invention is configured to cover a part of the lower body, such as the calf or ankle, and provides buoyancy to a part of the user's lower body in the water so that the kick can be omitted, corrects the swimming posture, or strengthens the upper body and lower back muscles An object of the present invention is to provide a swimming aid that assists the user to concentrate. Another object of the present invention is to provide an accommodation assistance device useful for patients complaining of knee joint pain and lower back pain or people with disabilities in the lower extremities because it is configured to allow left and right repeated strokes of swimming by moving the lower back left and right. To this end, a body composed of a material floating in water or a hollow tube type floating in water; an insertion hole formed in the body to pass through the inside of the body in the form of a hollow column, configured to surround a portion of the user's lower extremities; and an incision formed in one wall of the insertion hole so that a part of the lower extremity can be inserted into the insertion hole. A swimming aid device characterized in that the user's lower extremities are floated may be provided. According to this, there is an effect that beginners learning to swim can focus on the arm movement or the stroke that moves the waist left and right.

Description

Swimming assist device {SWIMMING ASSISTANCE APPARATUS}

The present invention relates to a swimming aid device. More particularly, it relates to a swimming aid device that assists a user to correct a swimming posture or to focus on strengthening upper body and lower back muscles by providing buoyancy to a part of a user's body in water.

Swimming is one of the whole body exercises that strengthens lung capacity and endurance, and strengthens the whole body. Therefore, swimming is in the spotlight as a daily sport in Korea, the United States, Australia, Japan, and China.

Conventional swimming aids include a tube, a buoy, a board, and the like. The tube is configured in the shape of a donut. The user may wear the tube to cover the waist, or wrap one side of the tube with a hand to support the user's upper body. The buoy is constructed in the form of a sphere with a handle. The user holds the handle of the buoy and receives assistance in buoyancy. The board is configured in the form of a plate. The user holds the board and is assisted by buoyancy.

Korean Patent 10-1212467 Korean Patent 10-1171002

However, conventional swimming aids such as tubes, floats, and boards must be held by the user while swimming. Accordingly, the overall movement of the user's arm is inhibited. As a result, the user cannot completely perform the swimming posture when using the conventional swimming aid device.

In addition, since the conventional swimming assistant device is easily detached from the user's hand, a beginner who cannot swim at all loses the conventional swimming assistant device from the hand. For beginner swimmers, this experience provides a sense of repelling or rejection of water, leaving a traumatic experience in the beginner's mind for a long time.

Also, when using a conventional swimming aid device, there is a problem that the user must always tension the muscles of the arm. As a result, the user is easily exhausted and does not gain confidence in swimming. Also, because the muscles are tense, it becomes difficult to smoothly correct the swimming posture.

In addition, there is a problem in that only the lower body except for the upper body can be trained in the case of the buguo and the board among the conventional swimming aids. This is because the user holds the bugu and board with both hands, straightens both arms and body, and moves forward by kicking motion.

In addition, in the case of a vest-type buoy among the conventional swimming aids, there is a problem in that there is a limit to the stroke and it is difficult for the user to take a posture in the water. This is because the user floats vertically in the water by the vest-type buoy.

In addition, the stroke that can be realized when using the conventional swimming assist device becomes quite limited. In general, when using a conventional swimming aid device, only a swimming technique by moving the waist up and down may be possible. Such a stroke may exacerbate back pain in patients complaining of back pain due to a herniated disc or the like.

In addition, it is impossible for people with lower extremity disabilities such as paraplegia to kick or swim by moving their lower back up and down. Therefore, the disabled people could not use the conventional swimming aids.

Accordingly, the present invention has been devised to improve the problems presented above.

An object of the present invention is to be configured to cover a part of the lower body such as the calf or ankle, to provide buoyancy to a part of the user's lower body in water so that the kick can be omitted, to correct the swimming posture, or to correct upper body muscle strength and lower back An object of the present invention is to provide a swimming aid that assists the user so that he or she can focus on strengthening the muscles. It is also an object of the present invention to provide a accommodating assistance device useful for patients with knee joint pain, lower back pain, or the disabled with lower extremity, which is configured to allow left and right repeated strokes of swimming by moving the lower back left and right.

Hereinafter, specific means for achieving the object of the present invention will be described.

An object of the present invention, a body composed of a material floating in water or configured in the form of a hollow tube to float in water; an insertion hole formed in the body to pass through the inside of the body in the form of a hollow column, configured to surround a portion of the user's lower extremities; and an incision formed in one wall of the insertion hole so that a part of the lower extremity can be inserted into the insertion hole, wherein the user swims while the part of the lower extremity is inserted into the insertion hole, It can be achieved by providing a swimming aid device, characterized in that the user's lower extremities are floated in the water by the body.

In addition, a portion of the user's lower extremities inserted and fixed in the insertion hole may be a calf or an ankle.

In addition, the insertion hole includes a first insertion hole and a second insertion hole configured to insert each of the left and right lower limbs, respectively, and the left and right lower limbs are collected by the first and second inserting holes. It may be characterized in that it is fixed.

In addition, the insertion hole includes a first insertion hole and a second insertion hole configured to insert each of the left and right lower limbs, respectively, and the inside of the body is cut between the first insertion hole and the second insertion hole, It further includes; detachable means formed on each inner side of the separated body formed on each inner side of the cut body; Thus, it may be configured to enable separation of the first insertion hole and the second insertion hole.

In addition, the cutout may be formed in a longitudinal direction of the insertion hole on the outer wall of the insertion hole so that the user can easily insert the lower extremity.

In addition, the insertion hole includes a first insertion hole and a second insertion hole configured to insert each of the left and right lower extremities, respectively, and the cutout portion includes a first cutout provided on one wall of the first insertion hole and the at least one of the second cut-outs provided on one side wall of the second insertion hole, wherein at least one of the first cut-out and the second cut-out is configured to allow a user to easily seat the lower extremities, each of the first insertion holes And it may be characterized in that the incision is formed in the upper side wall of the second insertion hole.

In addition, the insertion hole includes a first insertion hole and a second insertion hole configured to insert each of the left and right lower extremities, respectively, and the cutout portion is provided on one side wall of each of the first insertion hole and the second insertion hole and a first incision and a second incision, wherein the first incision is cut in the upper sidewall of the first insertion hole,

In addition, the second cut-out portion may be characterized in that the cut-out is formed in the lower side wall of the second insertion hole.

In addition, a plurality of protrusions configured to protrude in the radial direction on the inside of the insertion hole and configured to extend in the longitudinal direction of the insertion hole; further comprising, providing comfort to the inserted lower extremities and improving the fixing force of the lower extremities can be characterized.

In addition, a plurality of protrusions configured to protrude in the radial direction on the inside of the insertion hole and configured in a spherical shape may further include, providing comfort to the inserted lower extremities and improving the fixing force of the lower extremities.

In addition, it is configured to protrude in the radial direction on the inside of the insertion hole, and a protrusion configured to extend in a spiral form in the longitudinal direction of the insertion hole; further including, providing comfort to the inserted lower extremity and at the same time improving the fixing force of the lower extremity can be characterized as

Also provided on both sides of the body in the longitudinal direction, the front of the user's swimming direction is curved to have a predetermined curvature to reduce water resistance; and a fin protruding from the middle portion of the body in at least one of a vertically upward and a vertical downward direction, and the front of the user's swimming direction is curved to have a predetermined curvature to reduce water resistance; further comprising at least one of, the user It may be characterized in that the rotational force centered on the swimming direction is offset.

In addition, the body is configured in the form of a plate-like board, and the insertion hole is formed to be in contact with one surface of the body, is provided on both sides of the body in the longitudinal direction, and the front, which is the user's swimming direction, is used to reduce water resistance. It may be characterized in that it further comprises a wing that is curved to have a predetermined curvature.

In addition, the insertion hole includes a first insertion hole and a second insertion hole configured to insert each of the left and right lower limbs, respectively, and penetrates the inside of the body between the first insertion hole and the second insertion hole. A through hole formed in the body; further including, it may be characterized in that the underwater resistance generated in the user's swimming progress direction is reduced.

It may further include; at least one gripper configured to be recessed or penetrated on one side of the body so that at least one of a user's fingers is inserted to grip the body.

Also provided on both sides of the body in the longitudinal direction, the front of the user's swimming direction is curved to have a predetermined curvature to reduce water resistance; and a fin protruding from the middle portion of the body in at least one of a vertically upward and a vertical downward direction, and the front of the user's swimming direction is curved to have a predetermined curvature to reduce water resistance; further comprising at least one of, the user At least one gripper configured to offset the rotational force centered on the swimming direction of the wing or the fin or to be recessed or penetrated on one side of the fin so that at least one of the user's fingers is inserted to grip the body It may be characterized by further comprising ;.

In addition, it may further include a; plate-shaped partition wall for maintaining the shape of the body inside the hollow body and to relieve the torsion of the body.

In addition, a plurality of plate-shaped partition walls are provided to maintain the shape of the body inside the hollow body and to alleviate torsion of the body, and further comprising, wherein the plurality of partition walls are each configured to cross each other, characterized in that can do.

In addition, a plurality of plate-shaped partition walls are provided to maintain the shape of the body inside the hollow body and to alleviate torsion of the body, wherein the plurality of partition walls are each configured to be interconnected in a honeycomb shape can be characterized as

In addition, it may further include a; detachment prevention means configured on one side of the cutout so as to close the cutout, and configured to prevent the inserted lower extremity from being separated into the cutout.

In addition, the separation preventing means, Velcro tape, magnetic, button, male and female coupling, it may be characterized in that it is composed of a hook or zipper method.

As described above, according to the present invention, there are the following effects.

First, by using the swimming assist device according to an embodiment of the present invention, there is an effect that beginners learning to swim can focus on the stroke of moving their arms or waist left and right.

Second, according to an embodiment of the present invention, there is an effect that the swimming assist device can be used even in the case of a patient complaining of knee joint pain or back pain or a person with a lower extremity disability.

Third, according to an embodiment of the present invention, since it is possible to move the waist left and right while using the swimming assist device, the upper body and lower back muscles are significantly strengthened, which is very helpful for rehabilitation and greatly improves swimming skills.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention, so the present invention is limited only to the matters described in such drawings should not be interpreted as
1 is a perspective view showing a swimming aid device according to a first embodiment of the present invention;
2 is a perspective view showing a swimming aid device according to a second embodiment of the present invention;
3 is an exploded view showing a swimming aid device according to a second embodiment of the present invention;
4 is a perspective view showing a swimming aid device according to a third embodiment of the present invention;
5 is a perspective view showing a swimming aid device according to a fourth embodiment of the present invention;
6 is a perspective view showing a swimming aid device according to a fifth embodiment of the present invention;
7 is a perspective view showing a swimming aid device according to a modified example of the fifth embodiment of the present invention;
8 is a perspective view showing a swimming aid device according to a modified example of the fifth embodiment of the present invention;
9 is a perspective view showing a swimming aid device according to a sixth embodiment of the present invention;
10 is a perspective view showing a swimming aid device according to a seventh embodiment of the present invention;
11 is a perspective view showing a swimming aid device according to a modified example of the seventh embodiment of the present invention;
12 is a perspective view showing a swimming aid device according to an eighth embodiment of the present invention;
13 is a perspective view showing a swimming aid device according to a ninth embodiment of the present invention;
14 is a perspective view showing a swimming aid device according to a tenth embodiment of the present invention;
15 is a perspective view showing a swimming aid device according to a first modification of the tenth embodiment of the present invention;
16 is a perspective view showing a swimming aid device according to a second modification of the tenth embodiment of the present invention;
17 is a perspective view showing a swimming aid device according to an eleventh embodiment of the present invention;
18 is a perspective view showing a swimming aid device according to a first modified example of an eleventh embodiment of the present invention;
19 is a perspective view showing a swimming aid device according to a second modification of the eleventh embodiment of the present invention.

Hereinafter, embodiments in which those skilled in the art can easily practice the present invention will be described in detail with reference to the accompanying drawings. However, in the detailed description of the operating principle of the preferred embodiment of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used throughout the drawings for parts having similar functions and functions. Throughout the specification, when it is said that a certain part is connected to another part, it includes not only a case in which it is directly connected, but also a case in which it is indirectly connected with another element interposed therebetween. In addition, the inclusion of any component does not exclude other components unless otherwise stated, but means that other components may be further included.

Composition and connection relationship of swimming aids

The first embodiment of the present invention will be reviewed in relation to the basic configuration of the swimming aid device. 1 is a perspective view showing a swimming assist device according to a first embodiment of the present invention. As shown in FIG. 1 , the swimming assistance device 1 according to an embodiment of the present invention may include a body 10 , an insertion hole 20 , and a cutout 30 .

The body 10 may be made of a material floating in water, or may be configured in the form of a hollow tube floating in water. The material may be made of, for example, a resin material such as expanded and compressed Styrofoam or sponge. The shape of the body 10 may be basically configured in the form of an elliptical column, and may be configured in various shapes as described below.

The body 10 provides buoyancy to the user's lower extremities. The buoyancy of the body 10 is determined by the volume of the body 10 submerged in water and the density of the body 10 . The larger the volume of the body 10 submerged in water, the smaller the density of the body 10, the stronger the buoyancy.

The insertion hole 20 may be formed in the body to penetrate the inside of the body in the form of a hollow column. Both the user's lower leg ankles are inserted and fixed, and may be configured as a single hole to be wrapped by the swimming aid device (1). In addition, the user's left and right ankles are inserted and fixed, respectively, and may be configured with two holes so as to be covered by the swimming aid device 1, respectively. When the insertion hole 20 is composed of two holes, the insertion hole in which the left ankle is inserted and fixed may be defined as the first insertion hole, and the insertion hole in which the right ankle is inserted and fixed may be defined as the second insertion hole.

The insertion hole 20 may be configured to collect the user's lower extremities at a distance that is not inconvenient. That is, the first insertion hole and the second insertion hole may be formed to have a specific separation distance. The user's legs are fixed by the insertion hole 20 . A user with a fixed leg can focus on upper body movement while swimming, strengthen upper body strength and lower back muscles, and in particular, a stroke that moves the lower back left and right becomes possible. In addition, people with disabilities will be able to enjoy swimming. In addition, the problem of not being able to concentrate on the posture of the upper body due to foot cussing, which is a typical problem for beginners in swimming, is solved.

The cutout 30 is configured to be cut at one side of the insertion hole 20 to facilitate insertion of the user's lower extremities into the insertion hole 20 . The cutting direction of the cutout 30 is preferably cut in the longitudinal direction of the insertion hole 20 . The position of the cutout 30 may be provided on both sides of the body 10 in the longitudinal direction, above the insertion hole 20 , and below the insertion hole 20 . The width of the cut-out portion of the cutout 30 must be thinner than the thickness of the leg that the user wants to wear, so that unexpected detachment of the swimming aid device 1 may not occur.

The cutout 30 is configured to allow the leg to be easily inserted into the insertion hole 20 . According to the incision 30 formed in the longitudinal direction of the insertion hole 20 as in an embodiment of the present invention, it is not easily separated from the leg in the water, and in an emergency situation, the user can take it out if he wants. . In the end, the cutout 30 serves to increase the effectiveness of the swimming aid device 1 and reduce the risk. According to the first embodiment of the present invention, the cutout 30 is formed on the left and right sides of the insertion hole 20 . However, since the force is applied to the inside of both legs when the user normally swims, the user's leg does not separate from the insertion hole 20 unless the user intentionally removes the leg from the insertion hole 20 . .

The cutout 30 may be formed in at least one of the first insertion hole and the second insertion hole. That is, it is not necessarily required to be formed in both insertion holes 20, and even if it is formed in one insertion hole 20, the object according to an embodiment of the present invention can be achieved.

The swimming assistance device 1 according to an embodiment of the present invention has various embodiments described below as well as the first embodiment.

Example

With respect to the second embodiment, Fig. 2 is a perspective view showing a swimming assisting device according to a second embodiment of the present invention, and Fig. 3 is an exploded view showing a swimming assisting device according to a second embodiment of the present invention. 2 and 3, in the swimming aid device 1 according to the second embodiment of the present invention, the middle portion of the body 10 is cut, and the body 10 is halved so that the insertion hole 20 is formed, respectively. An embodiment of the detachable means configured to be separated may include a male and female coupling unit 40 .

According to the second embodiment of the present invention, there is an effect of improving the wearing convenience. It can be configured such that the user wears the swimming aid device 1 on one leg at a time and inserts the male coupling part 42 into the female coupling part 41 . In addition, it may be configured to have a magnetic on the coupling surface of the male and female coupling portion (40). In addition, without configuring the male and female coupling part 40 on the middle inner surface of the separated body 10, it can be configured as a detachable means such as Velcro tape, a snap button, a magnetic, a ring or hook shape, a zipper shape, and the like.

3rd embodiment

With respect to the third embodiment, Fig. 4 is a perspective view showing a swimming aid device according to a third embodiment of the present invention. As shown in FIG. 4 , in the swimming assisting device 1 according to the third embodiment of the present invention, the cutout 30 may be formed on the upper side of the insertion hole 20 .

According to the third embodiment of the present invention, the lower side of the insertion hole 20 is in close contact with the user's leg by the buoyancy of the body 10 so that it is not easily separated from the leg in the water. At the same time, when the user lifts the leg toward the upper side of the insertion hole 20, the leg can be easily separated from the insertion hole 20, so that the swimming aid device 1 can be detached if the user wants to in an emergency situation. do.

4th embodiment

With respect to the fourth embodiment, Figure 5 is a perspective view showing a swimming aid device according to the fourth embodiment of the present invention. As shown in FIG. 5 , in the swimming assisting device 1 according to the fourth embodiment of the present invention, the position of the cutout 30 is shifted from the first insertion hole and the second insertion hole. For example, in the first insertion hole, the position of the cutout 30 may be formed on the upper side of the insertion hole 20 , and in the second insertion hole, the position of the cutout 30 is the lower portion of the insertion hole 20 . can be formed on the side. Alternatively, in the first insertion hole, the position of the cutout 30 may be formed on the upper side of the insertion hole 20 , and in the second insertion hole, the position of the cutout 30 is formed on the left and right sides of the insertion hole 20 . can be

According to the fourth embodiment of the present invention, there is an effect that all effects generated according to the position of the cutout 30 can be employed. For example, when the position of the cutout 30 of the first insertion hole is formed on the upper side of the insertion hole 20 , the lower side of the insertion hole 20 is in close contact with the user's leg due to the buoyancy of the body 10 . Since it is not easily separated from the leg in the water and at the same time the user lifts the leg to the upper side of the insertion hole 20, the leg can be easily separated from the insertion hole 20. The device 1 is configured to be detachable.

5th embodiment

With respect to the fifth embodiment, Fig. 6 is a perspective view showing a swimming assisting device according to a fifth embodiment of the present invention, and Fig. 7 is a perspective view showing a swimming assisting device according to a modified example of the fifth embodiment of the present invention, Fig. 8 is a perspective view showing a swimming aid device according to a modified example of the fifth embodiment of the present invention. 6, 7 and 8, the swimming assist device 1 according to the fifth embodiment of the present invention has a depression 50 that is depressed in the transverse direction of the body 10 from the middle portion of the body 10. can be provided. The depression 50 may be configured to be recessed from the upper side of the body 10 to the lower side, and may be configured to be recessed from the lower side to the upper side of the body 10 . In addition, it may be configured to be recessed toward the inside of the body 10 from the upper side and the lower side of the body (10).

According to the fifth embodiment of the present invention, there is an advantage in that the manufacturing cost of the swimming aid device 1 is reduced by the depression 50 . In addition, as the vertical cross-sectional area of the body 10 is reduced, there is an advantage in that the underwater resistance in water is reduced. The swimming aid device 1 shown in FIG. 6 is a case in which the recessed part 50 is recessed from the upper side to the lower side of the body 10 and the cutout 30 is provided on the upper side of the insertion hole 20 . The swimming aid device 1 shown in FIG. 7 is a case in which the recessed part 50 is recessed from the upper side to the lower side of the body 10 and the cutout 30 is provided on the left and right sides of the insertion hole 20 . The swimming aid device 1 shown in FIG. 8 is configured such that the recessed part 50 is recessed from the upper side and the lower side of the body 10 toward the inside of the body 10, and the cutout 30 has an insertion hole 20 ) is provided on the left and right sides.

6th embodiment

With respect to the sixth embodiment, FIG. 9 is a perspective view showing a swimming aid device according to a sixth embodiment of the present invention. As shown in FIG. 9 , the swimming aid device 1 according to an embodiment of the present invention may include at least one of the fins and the wings 62 on the outside of the body 10 . Both the fins and the wings 62 are configured in the form of a plate whose width is gradually narrowed. In order to reduce water resistance in the front of the swimming aid device 1, it may be configured in a streamlined shape, that is, an elliptical cross section. The pin is formed on the outside of the body 10 in the vertical direction of the body 10 and is configured such that the longitudinal direction of the body 10 and the normal direction of the plane forming the pin are substantially parallel. The wings 62 are formed on the outside of the body 10 in the left and right direction, and are configured such that the longitudinal direction of the body 10 and the plane forming the pin are substantially parallel.

In the case of the swimming aid device 1 having a pin according to the sixth embodiment of the present invention, since the user swims while moving the waist left and right, the pin repels the water and the user's driving force is improved. After all, when the user uses the swimming aid device 1 having a pin, there is an advantage in that the user's exercise effect is doubled. In addition, since the pin serves to hold the center of the swimming aid device 1, there is an effect of preventing the swimming aid device 1 from being rotated about the moving direction in the water.

In the case of the swimming aid device 1 having the wings 62 according to the sixth embodiment of the present invention, two insertion holes 20 may be configured in a board which is one of the conventional swimming aid devices. In the case of the swimming aid device 1 having the wings 62 , the volume occupied by the wings 62 increases in water, and the buoyancy force acting on the swimming aid device 1 is improved. In addition, as the area in contact with the water surface becomes wider, the force required to overcome the surface tension of the water surface increases. That is, since the underwater resistance is increased in the vertical direction in the water, the user's legs are better floated in the water. In the end, the wings 62 have the effect of providing more buoyancy to the beginner's legs. In addition, the wing 62 has an effect of preventing the swimming aid device 1 from rotating about the moving direction in the water.

7th embodiment

With respect to the seventh embodiment of the present invention, FIG. 10 is a perspective view showing a swimming assisting device according to a seventh embodiment of the present invention, and FIG. 11 is a swimming assisting device according to a modified example of the seventh embodiment of the present invention. is a perspective view. As shown in FIGS. 10 and 11 , the swimming assist device 1 according to the seventh embodiment of the present invention may further include a protrusion 70 protruding inward from at least a portion of the inner surface of the insertion hole 20 . there is. The shape of the protrusion 70 may be a straight line as shown in FIG. 10 or a hemispherical shape as shown in the modified example shown in FIG. 11 . Alternatively, in order to improve the traction with the legs in the front-rear direction of the swimming aid device 1, it may be configured in a spiral shape like a screw thread.

According to the seventh embodiment of the present invention, the swimming assisting device 1 having the protrusion 70 has an effect of strengthening the traction between the inside of the insertion hole 20 and the user's leg.

8th embodiment

With respect to the eighth embodiment of the present invention, Fig. 12 is a perspective view showing a swimming aid device according to the eighth embodiment of the present invention. As shown in FIG. 12 , the swimming aid device 1 according to the eighth embodiment of the present invention has a through hole 80 which is a hole through the front and rear direction of the swimming aid device 1 in the center of the body 10 . This may be provided. The cross-sectional shape of the through hole 80 may be variously configured, such as a circular shape, a polygonal shape, and an elliptical shape. Also, as shown in FIG. 12 , while a wall of uniform thickness is formed on the outside of the insertion hole 20 , it may be configured with a rectangular cross-section having a concave center in order to secure the maximum cross-sectional area of the hole.

According to the eighth embodiment of the present invention, the swimming aid device 1 having the through-hole 80 has the effect of reducing the underwater resistance and reducing the manufacturing cost.

9th embodiment

With respect to the ninth embodiment of the present invention, Fig. 13 is a perspective view showing a swimming aid device according to the ninth embodiment of the present invention. As shown in FIG. 13 , in the swimming assist device 1 according to the ninth embodiment of the present invention, a pin 60 is provided on the outside of the central portion of the body 10 and perpendicular to the body 10, the pin 60 A handle 90 that is a plurality of holes formed to penetrate one side of the pin 60 in the width direction may be provided. The handle 90 may be composed of a total of 1 to 5 holes, and is configured to fit each finger or a plurality of fingers in one hole. According to a modification of the ninth embodiment of the present invention, the handle 90 may be configured on one side of the body 10 itself or the wing 62 .

According to the ninth embodiment of the present invention, the swimming aid device 1 having the handle 90 has an effect that the user can easily hold the swimming aid device 1 .

10th embodiment

Regarding the tenth embodiment of the present invention, Fig. 14 is a perspective view showing a swimming assisting device according to a tenth embodiment of the present invention, and Fig. 15 is a swimming assisting device according to a first modified example of the tenth embodiment of the present invention. 16 is a perspective view showing a swimming aid device according to a second modified example of the tenth embodiment of the present invention. As shown in FIGS. 14, 15 and 16 , the swimming aid device 1 according to the tenth embodiment of the present invention may be configured in a hollow tube shape, and a partition wall 100 is formed inside the body 10 . Thus, it is possible to improve the overall strength of the swimming aid device (1). The partition wall 100 may be configured in a planar shape as shown in FIG. 14 , a cross shape as shown in FIG. 15 , or a honeycomb shape as shown in FIG. 16 .

In the swimming aid device 1 having the bulkhead 100 according to the tenth embodiment of the present invention, since most of the inside of the swimming aid device 1 is hollow, the manufacturing cost is lowered, and the buoyancy is strengthened. there is In addition, when the partition wall 100 is configured in a cross shape as shown in FIG. 15 , since the strength of the swimming aid device 1 is improved in four directions, the twisting of the swimming aid device 1 is prevented. In addition, when the bulkhead 100 is configured in a honeycomb shape as shown in FIG. 16 , the overall strength of the swimming aid device 1 is greatly improved.

eleventh embodiment

Regarding the eleventh embodiment of the present invention, Fig. 17 is a perspective view showing a swimming assisting device according to an eleventh embodiment of the present invention, and Fig. 18 is a swimming assisting device according to a first modified example of the eleventh embodiment of the present invention. 19 is a perspective view showing a swimming assist device according to a second modification of the eleventh embodiment of the present invention. As shown in FIGS. 17, 18 and 19, the swimming assist device 1 according to the eleventh embodiment of the present invention further includes a departure prevention means configured to close at least a portion of the cutout 30 according to the user's selection. may include Separation prevention means are male and female coupling means such as Velcro tape 110 as shown in FIG. 17, button 112 as in the first modified example shown in FIG. 18, and a zipper as in the second modified example shown in FIG. (114) and the like. In the first modification shown in FIG. 18, a magnetic may be used as a detachment means of the separation preventing means. When a magnetic is used, there is an advantage in that the use of the separation preventing means becomes simple.

According to the eleventh embodiment of the present invention, the swimming aid device 1 having a departure preventing means has an effect that the swimming aid device 1 can be fixed to the user's leg according to the user's selection.

Aspects of use of swimming aids

Regarding the usage aspect of the swimming aid device 1, the swimming aid device 1 according to an embodiment of the present invention is inserted into the insertion hole 20 by the user through the cutout 30 of the swimming aid device 1 . It is worn by inserting both legs separately. It is fixed in a state where both legs of the user are gathered by the swimming aid device (1). The user may wear the swimming assist device 1 on the calf, knee, thigh, etc., and in a more preferred embodiment, it may be worn on the ankle.

The user trains various strokes by moving the waist from side to side or swinging the arm in a state where the legs are fixed using the swimming aid device 1 . In the water, the lower body of the user floats due to the buoyancy of the swimming aid device 1 . Accordingly, the user can compose various strokes without paying attention to the lower body. The user can advance with a flowing stroke while alternately turning the waist of the user's body to the left and right, respectively. This is the same as the swimming technique in which a fish uses its tail fin to swim. With this stroke, the user's upper body strength and lower back muscles are strengthened, and the effect of correcting the user's distorted pelvis can be further generated.

According to the swimming aid device 1 according to an embodiment of the present invention, it is possible to swim only with the movement of the upper body without kicking. It has the effect of making it possible.

As described above, those skilled in the art to which the present invention pertains will be able to understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention.

1: Swimming assist device
10: body
20: insertion hole
30: incision
40: male and female couple
41: female coupling part
42: male coupling part
50: depression
60: pin
62: wings
70: protrusion
80: through hole
90: handle
100: bulkhead
110: Velcro tape
112: button
114: zipper

Claims (1)

a body composed of a material floating in water or in the form of a hollow tube floating in water;
an insertion hole formed in the body to pass through the inside of the body in the form of a hollow column, configured to surround a portion of the user's lower extremities;
a cutout formed in one wall of the insertion hole so as to insert a portion of the lower extremity into the insertion hole; and
a depression formed in the upper portion of the body and the lower portion of the body;
including,
Both sides of the depression form a curved surface, and the depression portion forms a shape that gradually narrows inward toward the inside,
a protrusion formed protruding from the inside of the insertion hole;
including,
The cutout is formed on the outer wall of the insertion hole in the longitudinal direction of the insertion hole, and the outer wall of the insertion hole is curved so that the outer surface forms a curved surface,
The insertion hole includes a first insertion hole and a second insertion hole configured to insert each of the left and right lower limbs, respectively,
The cutout includes a first cutout provided on one wall of the first insertion hole and a second cutout provided on one sidewall of the second insertion hole,
When the user swims with a part of the lower extremity inserted into the insertion hole, the user's lower extremity is floated in the water by the body.

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