JP7053045B2 - Swimming practice equipment - Google Patents

Description

The present invention relates to a swimming practice tool.

As the swimming practice tool, a kickboard, a pull buoy, a paddle, a fin and the like are widely known. Further, Patent Document 1 discloses a foot-holding type swimming practice tool that reinforces the buoyancy of the user's foot and is used for learning breathing technique, hand movement technique, and training of strength and proof stress. .. Further, Patent Document 2 discloses a swimming practice tool in which a buoyant body is attached to the upper body of a user so that he / she can practice swimming.

Registered Utility Model No. 3095343 Registered Utility Model No. 312451

Generally, it is said that if the kick of swimming improves, the posture (streamline) in the water becomes good, and it is possible to swim cleanly and quickly. To improve the kick, the swimmer needs to learn how to flex and stretch the hip, knee, and ankle joints and how they work together.

Examples of swimming practice equipment for practicing the above kicks include kickboards and fins. In the practice using the kickboard, the posture in the water is a posture in which the body is warped, and as a result, it is difficult to obtain a good streamline. In addition, it does not directly act on the flexion and extension of the hip joint, the knee joint, and the ankle joint. Further, in the practice using the fins, the flexion and extension of the ankle joint is directly acted on, but the flexion and extension of the hip joint and the knee joint are not directly acted on.

One aspect of the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a swimming practice tool that directly works on flexion and extension of a hip joint.

In order to solve the above problems, the swimming practice tool according to one aspect of the present invention includes a plate-shaped member to be attached to the upper thigh of the user, and the plate-shaped member is provided in the longitudinal direction. The other end in the longitudinal direction is characterized in that the buoyancy obtained in water is larger than that of one end.

According to one aspect of the present invention, it is possible to provide a swimming practice tool that directly acts on the flexion and extension of the hip joint.

It is a front view which shows an example of the state which attached the swimming practice tool which concerns on one Embodiment of this invention to a user. It is a perspective view which shows the outline of the two plate-shaped members in the said swimming practice tool. It is a three-view view which shows the outline of one of the said plate-shaped members. It is a side view which shows an example of the kick operation performed underwater by the user who attached the swimming practice tool of the said structure. It is a side view which shows the other example of the kick operation performed underwater by the user who attached the swimming practice tool of the above composition. It is a three-view drawing which shows the outline of the plate-shaped member in the swimming practice tool which concerns on another embodiment of this invention. It is a top view which shows the outline of two plate-shaped members in the swimming practice tool which concerns on other embodiment of this invention. It is a five-sided view which shows the outline of the said plate-shaped member.

Hereinafter, embodiments of the present invention will be described in detail. For convenience of explanation, the members having the same functions as the members shown in each embodiment are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

[Embodiment 1]
An embodiment of the present invention will be described with reference to FIGS. 1 to 5.

(Overview of swimming practice equipment)
FIG. 1 is a front view showing an example of a state in which the swimming practice tool according to the present embodiment is attached to the user. As shown in FIG. 1, the swimming practice tool 10 of the present embodiment includes two plate-shaped members 11a and 11b, and the plate-shaped members 11a and 11b are the upper right thigh portion 21a and the upper left of the user 20. It is attached to the surface of the thigh portion 21b, respectively. The shapes and structures of the two plate-shaped members 11a and 11b are in a mirror image relationship with each other. In the following, when the two plate-shaped members 11a and 11b are generically referred to, they are referred to as "plate-shaped member 11". Further, when the upper right thigh 21a and the upper left thigh 21b are generically referred to, it is described as "upper thigh 21". The same applies to other embodiments.

The plate-shaped member 11 has a lower density than water, is lighter, and is water resistant and flexible, such as polyethylene foam, polyurethane foam, EVA (ethylene vinyl acetate copolymer) foam, and PVC (polyvinyl chloride). , And preferably made of elastic material. As a result, the plate-shaped member 11 can float on water, is easy to carry, has excellent durability, can be curved along the upper thigh 21, can suppress damage, and is excellent in safety. Will be. As a result, the swimming practice tool 10 of the present embodiment can be safely used in the pool like a conventional kickboard, pull buoy, and the like.

Further, it is desirable that the plate-shaped member 11 has waterproofness. This makes it possible to prevent water from penetrating into the plate-shaped member 11 and making it heavier. Further, it is desirable that the plate-shaped member 11 has a smooth surface. This makes it possible to reduce the resistance of the water flow acting on the plate-shaped member 11.

In the present embodiment, the plate-shaped member 11 is attached to the upper thigh portion 21 with a rubber tube 12 (see FIGS. 4 and 5), but is not limited thereto. It may be attached by any string-shaped member or band-shaped member, or may be attached by a band-shaped member and a buckle. Further, it may be attached to the swimsuit 22 of the type that covers the upper thigh portion 21 with an adhesive, fastener means, or the like. Further, the plate-shaped member 11 may be sandwiched between the upper thigh portion 21 and the swimsuit 22.

(Details of plate-shaped member)
FIG. 2 is a perspective view showing an outline of the two plate-shaped members 11a and 11b. Further, FIG. 3 is a three-view view showing an outline of one plate-shaped member 11a. As shown in FIGS. 2 and 3, the plate-shaped member 11 has a uniform thickness, and the other end portion 31 in the longitudinal direction is wider than the one end portion 30 in the longitudinal direction.

Specifically, the one end portion 30 has a sharp shape, and the other end portion 31 has a width. As one end portion 30 toward the other end portion 31, one side expands, the width becomes maximum at substantially the center, and then the one side becomes narrower to reach the other end portion 31.

In other words, in the plate-shaped member 11 of the present embodiment, the central portion and one side portion of the one end portion 30 are cut out from the substantially rectangular plate-shaped member, and the one side portion of the other end portion 31 is cut out. It is a notched shape.

It is desirable that the length of the plate-shaped member 11 in the longitudinal direction is shorter than the length of the upper leg portion 21 in the longitudinal direction (direction along the femur). In this case, it is possible to avoid obstructing the flexion and extension of the hip joint and the knee joint. Further, it is desirable that the maximum width of the plate-shaped member 11 is about the same as or narrower than the width of the upper thigh portion 21. In this case, the possibility that the plate-shaped member 11 collides with the user's arm, the other upper thigh portion 21, the other plate-shaped member 11, and other members can be reduced.

The plate-shaped member 11 is provided with four holes 32 through which the rubber tube 12 (mounting member) penetrates at appropriate positions. Each hole 32 is narrower on the front side than on the back side, which is the side on which the upper thigh 21 is provided. This facilitates the passage of the rubber tube 12 from the back side to the front side of the hole portion 32. Further, since there is play between the plate-shaped member 11 and the rubber tube 12 on the back side of the hole portion 32, the rubber tube 12 can be easily moved according to the movement of the upper thigh portion 21. As a result, the friction between the upper leg 21 and the rubber tube 12 is reduced.

The plate-shaped member 11 of the present embodiment is rounded as a whole. As a result, it is possible to prevent the plate-shaped member 11 from being damaged when it collides with a user or another object.

In the plate-shaped member 11 shown in FIGS. 2 and 3, as shown in FIG. 1, one end portion 30 of the plate-shaped member 11 is located on the hip joint side (upper side) of the upper thigh portion 21, and the other end of the plate-shaped member 11 is located. The portion 31 is attached to the upper thigh portion 21 of the user 20 so that the portion 31 is located on the knee joint side (lower side) of the upper thigh portion 21.

During kick practice, water will flow from the head side to the foot side for the user and from the one end 30 side to the other end 31 side for the plate-like member 11. At this time, since one end portion 30 has a sharp shape, the resistance of the water flow acting on the plate-shaped member 11 can be reduced.

Further, since the plate-shaped member 11 is not provided on the upper side and the inner side of the upper leg portion 21, the possibility that the plate-shaped member 11 collides with the crotch portion 23 in the kick operation can be suppressed. Further, since the plate-shaped member 11 is not provided on the lower side and the inner side of the upper thigh portion 21, it is possible to suppress the possibility of hindering a smooth kicking operation.

(Example of kick movement)
FIG. 4 is a side view showing an example of a kick operation performed underwater by a user 20 to which the swimming practice tool 10 having the above configuration is attached. In the example of FIG. 4, the kicking motion of the crawl is shown, and the user 20 is floating in the water in a prone state. Further, FIGS. 4A and 4B show a kicking motion and a kicking motion, respectively, among the kicking motions. In FIG. 4A, the position before the kicking operation is shown by a long-dashed line, and the position after the kicking operation is shown by a solid line. Further, in FIG. 4B, the position before the kicking operation is shown by a solid line, and the position after the kicking operation is shown by a alternate long and short dash line.

As shown in FIG. 4, when the user 20 floats on water, the buoyancy of the plate-shaped member 11 obtained in water acts on the upper thigh portion 21. Since the plate-shaped member 11 has a wider width at the other end 31 than at one end 30, it has a large buoyancy. Therefore, the force acting on the upper leg portion 21 from the plate-shaped member 11 is larger on the knee joint side than on the hip joint side.

As a result, when performing the kicking motion shown in FIG. 4A, the user 20 can be made aware that the force is applied to the knee joint side rather than the hip joint side in the upper thigh portion 21. Therefore, when the user 20 subsequently removes the swimming practice tool 10 and performs the above-mentioned kicking motion, the hip joint is easily bent more than before. Further, when the kicking motion shown in FIG. 4B is performed, the force acting from the plate-shaped member 11 to the upper thigh 21 is larger on the knee joint side than on the hip joint side, so that the hip joint is more buoyant than before. It becomes easy to extend greatly.

From the above, the swimming practice tool 10 of the present embodiment can directly act on the flexion and extension of the hip joint. As a result, the kicking motion can be improved. Further, the force acting on the upper leg portion 21 from the plate-shaped member 11 can raise the position of the waist portion of the user 20, and can increase the body portion exposed from the water surface. As a result, the user 20 can feel the swimming with less resistance to water.

FIG. 5 is a side view showing another example of a kicking motion performed underwater by a user 20 to which the swimming practice tool 10 having the above configuration is attached. In the example of FIG. 5, the kick motion of the backstroke is shown, and the user 20 is floating on the water in a supine state. In FIG. 5, the position before the kicking operation is shown by a solid line, and the positions during the kicking operation and after the kicking operation are shown by a alternate long and short dash line.

Even in the case of the kick motion shown in FIG. 5, the swimming practice tool 10 can directly act on the flexion and extension of the hip joint as in the case of the kick motion shown in FIG. As a result, the kicking motion can be improved.

It is desirable that the plate-shaped member 11 is always in the water during kick practice to exert buoyancy. Therefore, it is desirable that the plate-shaped member 11 is provided on the upper leg portion 21 on the side opposite to the water surface (for example, the side of the bottom surface of the pool). Specifically, as shown in FIG. 4, when the user 20 practices kicking in a prone state, it is desirable to attach the plate-shaped member 11 to the front surface of the upper thigh portion 21 of the user 20. On the other hand, as shown in FIG. 5, when the user 20 practices kicking in a supine position, it is desirable to attach the plate-shaped member 11 to the back surface of the upper thigh portion 21 of the user 20. When the plate-shaped member 11 is attached to the upper thigh portion 21 with the rubber tube 12 as in the present embodiment, the plate-shaped member 11 can be easily placed at an appropriate position on the upper thigh portion 21 according to the content of the practice. Can be moved.

[Embodiment 2]
Another embodiment of the present invention will be described with reference to FIG.

FIG. 6 is a three-view view showing an outline of a plate-shaped member in the swimming practice tool according to the present embodiment. The swimming practice tool 40 shown in FIG. 6 has a different shape of the plate-shaped member from the swimming practice tool 10 shown in FIGS. 1 to 5, and has the same other configurations.

As shown in FIG. 6, the plate-shaped member 41 of the present embodiment has a substantially rectangular shape in a plan view, has a uniform width, and has a longitudinal end portion 43 rather than a longitudinal end portion 42. Is getting thicker. Specifically, the one end 42 and the other end 43 are flat, and the thickness increases from the one end 42 toward the other end 43. Further, at the four corners of the plate-shaped member 41, four holes 44 through which the rubber tube 12 penetrates are provided at appropriate positions.

In the plate-shaped member 41 of the present embodiment, the other end portion 43 is thicker than the one end portion 42, so that the buoyancy is large. Therefore, by attaching one end 42 of the plate-shaped member 41 to the hip joint side of the upper thigh 21 and the other end 43 of the plate-shaped member 41 to the knee joint side of the upper thigh 21, the swimming practice tool of the present embodiment. 40 can directly act on the flexion and extension of the hip joint, similar to the swimming practice tool 10 shown in FIGS. 1 to 5. As a result, the kicking motion can be improved. Further, since the plate-shaped member 41 of the present embodiment is symmetrical, the plate-shaped members 41 and 41 having the same shape can be attached to the left and right upper thighs 21a and 21b. As a result, the manufacturing cost can be reduced. In the present embodiment, the upper surface of the plate-shaped member 11 is an inclined surface, but it may be stepped.

[Embodiment 3]
Other embodiments of the present invention will be described with reference to FIGS. 7 and 8.

FIG. 7 is a plan view showing an outline of two plate-shaped members in the swimming practice tool according to the present embodiment. Further, FIG. 8 is a five-view view showing an outline of one plate-shaped member.

The swimming practice tool 50 shown in FIGS. 7 and 8 is different from the swimming practice tool 10 shown in FIGS. 1 to 5 in the shape of the plate-shaped member and the mounting member, and has the same other configurations.

As shown in FIG. 7, the swimming practice tool 50 of the present embodiment includes two plate-shaped members 51a and 51b. The plate-shaped members 51a and 51b are attached to the surfaces of the upper right thigh 21a and the upper left thigh 21b of the user 20 shown in FIG. 1, respectively. As shown in FIGS. 7 and 8, the plate-shaped member 51 has a uniform thickness, and the width of the other end 53 in the longitudinal direction is wider than that of the one end 52 in the longitudinal direction.

In this embodiment, a rubber belt (not shown) is used as a mounting member. Since the rubber belt has a band shape, the plate-shaped member 51 is provided with four elongated hole portions 54 through which the rubber belt penetrates at appropriate positions. By using the rubber belt, it is possible to reduce the pressure on the upper thigh 21 by the mounting member.

Further, the plate-shaped member 51 is bent at the bent portion 55 along the longitudinal direction. That is, the plate-shaped member 51 includes a bent portion 55, and one side portion 56 and another side portion 57 located on both sides of the bent portion 55, respectively. The bent portion 55 improves the degree to which the plate-shaped member 51 is in close contact with the upper thigh portion 21. The bending angle α is preferably 100 ° or more and 140 ° or less, more preferably 110 ° or more and 130 ° or less, and more preferably approximately 120 °. The bent portion 55 may be curved instead of being bent.

Further, the area of the plate-shaped member 51 is larger on the other side portion 57 than on the one side portion 56. By arranging the one side portion 56 on the outside of the upper thigh portion 21, the other side portion 57 on the inside of the upper thigh portion 21, and attaching the plate-shaped member 51 to the upper thigh portion 21, the plate-shaped member 51 can be attached. The force acting on the upper thigh 21 is greater on the inside than on the outside. As a result, the adductor muscle of the upper thigh 21 can be effectively trained, and the swimming kick can be effectively improved.

Further, in the present embodiment, the width of the plate-shaped member 51 is narrower in the central portion 58 than in the one end portion 52 and the other end portion 53. As a result, the degree to which both sides of the central portion 58 are in close contact with the upper thigh portion 21 is improved. As a result, it is possible to prevent water from flowing in from both sides of the central portion 58 and between the upper thigh portion 21 and staying between the plate-shaped member 51 and the upper thigh portion 21.

(Additional notes)
In the above embodiment, two plate-shaped members 11 (41.51) are attached to both upper thighs 21, but only one plate-shaped member 11 (41.51) is attached to one upper thigh 21. It may be attached. Further, a plurality of plate-shaped members 11 (41.51) may be attached to one of the upper thighs 21.

Further, since the size of the upper thigh 21 differs depending on the person, it is desirable to manufacture the plate-shaped members 1141 and 51 of several sizes.

Further, as the plate-shaped member, a material having a larger buoyancy than the material at one end may be used for the other end. In this case, it is not necessary to change the width or the thickness. It should be noted that at least two of the material change, the width change, and the thickness change may be combined.

Further, the swimming practice tool 10 (40.50) of the above embodiment may be provided on the upper arm portion instead of the upper thigh portion 21. In this case, one end of the plate-shaped member 11 (41.51) is located on the shoulder joint side of the upper arm, and the other end of the plate-shaped member 11 (41.51) is located on the elbow joint side of the upper arm. As described above, it may be attached to the upper arm of the user 20. This makes it possible to directly act on the movement of the shoulder joint.

Further, the swimming practice tool 10 (40.50) of the above embodiment may be provided on the forearm instead of the upper thigh 21. In this case, one end of the plate-shaped member 11 (41.51) is located on the elbow joint side of the forearm, and the other end of the plate-shaped member 11 (41.51) is located on the wrist side of the forearm. It may be attached to the forearm portion of the user 20. As a result, the flexion and extension of the elbow joint can be directly exerted.

〔summary〕
The swimming practice tool according to one aspect of the present invention includes a plate-shaped member that is attached to the upper thigh of the user, and the plate-shaped member is the other end in the longitudinal direction rather than one end in the longitudinal direction. The part has a larger buoyancy.

In the swimming practice tool having the above configuration, the plate-shaped member is attached to the upper thigh of the user. At this time, the plate-shaped member is arranged so that one end in the longitudinal direction is on the hip joint side of the upper thigh and the other end in the longitudinal direction is on the knee joint side of the upper thigh. When the user floats on water, the buoyancy of the plate-shaped member acts on the upper thigh, and the buoyancy is greater on the knee joint side than on the hip joint side.

As a result, when the user performs the kicking motion among the kicking motions, the user can be made aware that the force is applied to the knee joint side rather than the hip joint side in the upper thigh portion. .. After that, when the user removes the swimming practice tool and performs the kicking motion, the hip joint is more easily flexed than before. Further, when the user performs the kicking motion among the kicking motions, the buoyancy of the knee joint side is larger than that of the hip joint side in the upper thigh portion, so that the hip joint can be easily extended more than before.

From the above, the swimming practice tool can directly act on the flexion and extension of the hip joint. As a result, the kicking motion can be improved.

In order to increase the buoyancy, the width of the plate-shaped member may be wider at the other end than at one end. Further, the other end portion may be thicker than the one end portion. Moreover, you may combine these. The thickness of the plate-shaped member may be continuously increased from one end to the other end, or may be gradually increased.

Further, it is preferable to further include a mounting member for mounting the plate-shaped member to the upper thigh.

Further, it is preferable that the plate-shaped member is bent at a bent portion along the longitudinal direction. In this case, the degree to which the plate-shaped member is in close contact with the upper thigh is improved.

Further, the plate-shaped member has a larger buoyancy obtained in water on the other side portion located on the other side of the bent portion than on the one side portion located on one side of the bent portion. Is preferable. In this case, the plate-shaped member is attached to the upper thigh so that the one side portion is arranged on the outside of the upper thigh and the other side portion is in close contact with the inside of the upper thigh. The force acting on the upper thigh from the plate-shaped member is larger on the inner side than on the outer side. As a result, the adductor muscle of the upper thigh can be effectively trained, and the swimming kick can be effectively improved.

In order to increase the buoyancy, the area of the plate-shaped member may be larger on the other side than on the one side. Further, the other side portion may be thicker than the one side portion. Moreover, you may combine these. The thickness of the plate-shaped member may be continuously increased from one side portion to the other side portion, or may be gradually increased.

Further, it is preferable that the width of the plate-shaped member is narrower in the central portion between the one end portion and the other end portion than in the one end portion and the other end portion. In this case, since the degree to which both sides of the central portion are in close contact with the upper thigh portion is improved, water flows in from between both sides of the central portion and the upper thigh portion, and the plate-shaped member and the upper thigh are provided. It is possible to prevent water from staying between the parts.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention.

10, 40, 50 Swimming practice equipment 11, 11a, 11b, 41 Plate-shaped member 12 Rubber tube (mounting member)
20 User 21 Upper thigh 21a Upper right thigh 21b Upper left thigh 22 Swimsuit 23 Crotch 30, 42, 52 One end 31, 43, 53 Other end 32, 44 Hole 51, 51a, 51b Plate-shaped member 54 Length Hole 55 Bent 56 One side 57 Other side 58 Central

Claims (7)

Equipped with a plate-shaped member that is designed to be attached to the upper thigh of the user,
The plate-shaped member has a front surface of the upper leg so that one end in the longitudinal direction is located on the hip joint side of the upper leg and the other end in the longitudinal direction is located on the knee joint side of the upper leg. Or when attached to the back surface, the length in the longitudinal direction is shorter than the length in the longitudinal direction of the upper leg, the width is equal to or less than the width of the upper leg, and the other end is more than the one end. A swimming practice tool characterized by the fact that the buoyancy obtained in the water is greater in the club. The swimming practice tool according to claim 1, wherein the plate-shaped member has a wider width at the other end than at one end. The swimming practice tool according to claim 1 or 2, wherein the plate-shaped member is thicker at the other end than at the other end. The swimming practice tool according to any one of claims 1 to 3, further comprising a mounting member for mounting the plate-shaped member to the upper thigh. The swimming practice tool according to any one of claims 1 to 4, wherein the plate-shaped member is bent at a bent portion along a longitudinal direction. The plate-shaped member is attached to the front surface or the back surface of the upper leg so that one end thereof is located on the hip joint side of the upper leg and the other end is located on the knee joint side of the upper leg. If this is the case, it is one side portion located on one side of the bent portion, and the other side portion located on the other side of the bent portion than the one side portion arranged on the outside of the upper thigh portion . The swimming practice tool according to claim 5 , wherein the other side portion arranged inside the upper leg portion has a larger buoyancy obtained in water. Any of claims 1 to 6, wherein the plate-shaped member has a narrower width in the central portion between the one end portion and the other end portion than in the one end portion and the other end portion. The swimming practice equipment described in item 1.

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