JP5564154B1 - Snowboard exercise tool - Google Patents

Abstract

A snowboard practice tool (1) is provided that can constantly improve the practice of a snowboarder's snowboarding in a short period of time by always being aware of the basic posture in which the user's center of gravity is moved low toward the snowboard.
When a pad 2 is mounted, the pad 2 having a curved surface portion 2a is applied to the middle abdomen between the upper abdomen and the lower abdomen. By wearing the pad 2 with a rubber band 7, the curved surface 2a always gives a feeling of pressing against the middle abdomen, making the user feel conscious of the image of holding a dot ball, bending the knee on the snowboard, Maintain the basic posture with the center of gravity lowered toward the snowboard. As a result, it is possible to rationally correct the pole standing posture and the like that are common to newcomers such as snowboard beginners and beginners.
[Selection] Figure 1

Description

  The present invention relates to a snowboarding exercise tool in which a pad is attached to the user's abdomen as a padding device, and particularly corrects the standing posture that is common to beginners and beginners, and is always conscious of the basic posture. The present invention relates to a snowboard practice tool that has been improved so that a practitioner's snowboarding can be effectively improved in a short period of time.

  In snowboarding, which is a competition or play where a board is slid on the snow surface, when a practitioner U such as a beginner or beginner takes a test ride, the standing posture shown in FIG. 9 (b), or FIG. 9 (c) As shown in FIG. 9 (d), the head tends to lean forward toward the toe and the buttock protrudes toward the heel as shown in FIG. 9D. That is, there are many people who are sliding in a posture that is difficult to balance and in a posture that easily falls.

If it is a gliding person who slides on a snow surface with a sense of stability, the aspect shown by a basic posture in Fig.9 (a) can be hold | maintained. That is, it is desirable to form a deep pocket when the position of the abdomen of the person riding the snowboard Sp is low, and to form a shallow pocket at a high position.

In fact, in the practice guidance, when applying a load to the snowboard Sp, the snowboard Sp is regarded as a Japanese-style toilet, and it is advised to sit down with the image of bending down.
This is because a stable slip can be realized by bringing the center of gravity of the trainee U closer to the snowboard. Here, the depth of bosom assumes the image of holding a ball in a dotball game (see the two-dot chain line in FIG. 9A). In short, the basic posture is a stable low posture in which the lower body joints are bent and both knees are bent equally, and these parts form a triangle, with the face along the direction of travel and the shoulder force removed. It is a casual appearance with arms spread slightly.

Japanese Patent No. 5022085 Model registration No. 3059983 JP 2007-72416 A Japanese Patent Laid-Open No. 2005-280884

  However, when running on the snow surface, as shown in FIG. 9 (a) on the snowboard Sp, when trying to maintain the basic posture, the person has the habit of walking forward, so the sideboard snowboard Sp As shown in FIG. 9 (c), the practitioner opens the upper body with respect to the direction of travel and tries to move forward, as shown in FIG. 9 (b), As shown in FIG. 9 (d), an attempt is made to assume a low posture. At this time, since only the head of the practitioner U is lowered and the buttock is protruded, the umbilicus cannot be lowered, and the posture of the position where it is bent low cannot be taken. Although there are individual differences among practitioners depending on repulsiveness and physique such as flexibility and muscle strength, it is desirable to move the entire center of gravity low by lowering the umbilical portion when sliding on the snowboard Sp.

  As described above, it is important for a newly-trained practitioner U such as a beginner or beginner who wants to ski on a snowboard to maintain a basic posture on the snowboard Sp. However, with regard to correction to the basic posture, there is no effective practice tool to solve the problem, and the trainer U does not leave the area to be corrected by the instructor.

Incidentally, Patent Document 1 discloses a snowboard practice tool, and corrects the backward leaning posture of a rider using a string tool that can be adjusted on the snowboard. There is no teaching or suggestion about correcting the rider on the snowboard to the basic posture while correcting the backward leaning posture.
Patent Document 2 relates to an abdominal muscle health device, and discloses a technique for band-fastening an abdominal pad having a hemispherical ball body to the human torso. A hemispherical ball body is used to strengthen the abdominal muscles and scrape off the luxury meat to achieve a diet effect.

Patent Document 3 relates to a utterance power belt, and a belly pad and a waist pad are attached to a wide rubber belt. By tightening the belt tightly on the abdomen and lower back, it becomes easier to speak, and the waist is squeezed for slimming, and at the same time, it is effective for preventing and treating low back pain.
Patent Document 4 relates to a waist bag for carrying assistance, and has a belt portion to be worn around a waist of a carrier. The belt portion includes a belly pad portion that is pressed against the abdomen when worn. By attaching the belt part, the burden at the time of transportation is reduced and the efficiency of transportation work is improved.
Although Patent Documents 2 to 4 have a belt around the abdomen, as in Patent Document 1, there is no teaching or suggestion for correcting the glider on the board to the basic posture.

  The present invention has been made in view of the above circumstances, and the purpose thereof is a standing posture, a posture that tends to be a forward direction with respect to the direction of travel, which is common for new practitioners such as beginners and beginners of snowboarding, To provide a snowboard practice tool that effectively corrects the posture of the practitioner's snowboarding in a short period of time by rationally correcting the posture where the club part falls to the toe side and the buttocks project to the heel side, and always keeping the basic posture conscious is there. In other words, the present application is also a snowboard practice tool that makes it easy to balance the toe and heel side.

(About claim 1)
Of the user's abdomen, a pad having a curved surface applied to the middle abdomen between the upper abdomen and the lower abdomen centered on the umbilicus, one end connected to one end of the pad, and the other end of the pad And a rubber band connected to the other end.
Place the pad's curved surface on the user's middle abdomen, and when practicing snowboarding with the pad attached to the user with a band, bend the knee on the snowboard and hold the pad with the curved surface against the middle abdomen Thus, the basic posture in which the center of gravity of the user is lowered closer to the snowboard is maintained.

According to the first aspect of the present invention, when the pad is mounted, the pad having a curved surface is applied to the middle abdomen between the upper abdomen and the lower abdomen. By wearing the pad with a rubber band, the curved surface always gives a feeling of pressing against the mid-abdomen, making the user feel conscious of the image of holding a dot ball, bending the knee on the snowboard, and snowboarding the user's center of gravity Hold the basic posture that is moved closer to the side.
In other words, the standing posture and the posture that the upper body is turned too far forward with respect to the direction of travel, which is common for beginners and beginners of snowboarding, as well as the posture where the head falls to the toe side and the buttocks project to the heel side This makes it possible to improve the practice of snowboarding effectively and in a short period of time.

(About claim 2)
A pad having a semi-cylindrical shape at the center and a left half cylinder portion and a right half cylinder portion connected to each other by a rubber string at a left end portion and a right end portion of the main portion located at the center is provided. One end of the rubber band is connected to the rubber cord of the left half cylinder, and the other end is connected to the rubber cord of the right half cylinder.
The curved surface part of the main part is applied to the middle abdomen between the upper abdomen and the lower abdomen centered on the umbilicus among the abdomen of the user, and the pad is attached to the user by the band. When practicing snowboarding, bend the knees on the snowboard, hold the curved surface against the middle abdomen, and hold the pad to hold the basic posture with the user's center of gravity lowered toward the snowboard.

  According to the second aspect, in addition to the same effect as the first aspect, as the user winds the band strongly around the middle abdomen, the rubber string extends longer and the right half cylinder part and the left half cylinder part bend with respect to the middle abdomen. It becomes difficult. For this reason, even if the band is strongly tightened, the right half cylinder part and the left half cylinder part do not bite into the middle abdomen strongly and can be used with confidence.

(Claim 3)
The pad has a semi-cylindrical shape in which a single elastic plate is bent in a curved shape by elastic deformation, and a flexible bellows that can be folded is formed at the center of the pad along the middle abdomen. It is integrally formed.
In Claim 3, since a pad has a bellows part, it becomes easy to wear a pad along a user's abdominal part exactly.

(About claim 4)
The pad has a semi-cylindrical shape obtained by bending a single elastic plate into a curved shape by elastic deformation. A plurality of rows of dovetail grooves along the axial direction are formed on the upper and lower inner surfaces facing each other, and an adjustment plate having a constant width is provided with ant tenons formed on both upper and lower end surfaces.
By selectively sliding the upper and lower ant tenons into the upper and lower ant grooves and fitting them, the curved surface of the pad is elastically deformed and the radius of curvature is set to be changeable.

  In claim 4, by selectively fitting the upper and lower ant tenons into the upper and lower dovetail grooves, the curved surface portion of the pad undergoes elastic deformation, so that the radius of curvature of the curved surface portion is desired according to the wearing situation of the user. It can be changed and adjusted so that it can be easily attached to the abdomen.

(Claim 5)
The inner part corresponding to the circumference of the middle abdomen of the pad is bent in an arc shape along the middle abdomen. For this reason, it becomes easy to apply a pad to a mid-abdominal part correctly, and it becomes easy to correct so that a user may take a basic posture at the time of sliding.

(About claim 6)
Instead of the band, it has cold protection inner wear consisting of the wear part of the waist part, tights part, and stomach part extending from the left and right of the trunk part, and the stomach part is detachably attached to the pads on both the left and right sides. . For this reason, it is convenient to be able to wear the pad together with the inner wear for cold protection.

(About claim 7)
The pad is formed in a semi-cylindrical hollow with a synthetic resin, and a sponge plate rolled concentrically is filled in the hollow. For this reason, a sponge board contains an air layer and exhibits the heat retention effect to an abdomen.

(About claim 8)
The pad is formed of a synthetic resin into a semicylindrical hollow, and the inside of the hollow is used as a small compartment. For this reason, the convenience which can store daily small articles, such as a wallet and a mobile phone, in the hollow of a pad, or can also be used as an emergency box is obtained. In particular, when a mobile phone is stored, it is possible to prevent the mobile phone from being damaged due to the impact of the practitioner falling.

(About claim 9)
The curved surface portion of the pad is integrally formed with a ridge portion having a cross-sectional arc shape that is linear along the axial direction. In this case, when the pad is mounted, the curved surface portion can be applied to the upper abdomen and the lower abdomen, and the protrusion can be applied to the middle abdomen. For this reason, the pad is in close contact with the abdomen without being displaced, and the pad is in a good wearing state.

(About claim 10)
The curved surface of the pad is provided with a slit that forms a straight line along the axial direction. An elastic rod-shaped portion having two projecting portions with arc-shaped cross-sections and different diameters is attached to and detached from the slit, with one of the two projecting portions selectively directed outwards with elastic deformation. Provided possible. For this reason, the protrusion part suitable for a user's middle abdominal part can be selected among two protrusions, and can be applied to a middle abdominal part.

(Example 1) which is a perspective view which shows the pad of the snowboard practice tool. It is a typical perspective view which shows the practitioner who wears a pad and takes a basic posture (Example 1). (Example 2) which is a disassembled perspective view which shows the pad of the snowboard practice tool. (A), (b) is an exploded perspective view which shows a pad (Examples 3 and 4). (Example 5) which is a top view of the pad shown with inner wear. (A), (b) is a perspective view which shows a pad (Example 6). (A), (b) is a perspective view which shows a pad (Example 7). (A), (b) is a perspective view which shows a pad (Example 8, 9). (A)-(d) is a schematic diagram which draws the various attitude | positions which a practitioner shows on a snowboard at the time of sliding. (A)-(e) is a schematic diagram which draws the various attitude | position which a practitioner shows on a snowboard at the time of sliding.

  The snowboard practice tool of the present invention has a configuration that rationally corrects the troubles that are common to newcomers such as beginners and beginners of snowboarding with a simple tool, so that the snowboard skiing of the trainer can be effectively performed in a short period of time. A technical feature is the structure to be improved.

[Configuration of Example 1]
A snowboard training tool according to Embodiment 1 of the present invention will be described with reference to FIGS. 1, 2, 9, and 10. In the following, for snowboarders, different words will be used for users, practitioners, beginners and beginners, but they will be used in the same meaning. For the sake of convenience, FIG. 9 shares the same drawing as that used in the “background art” column.

  A snowboard training tool 1 in FIG. 1 has a pad 2 formed in a semi-cylindrical shape by, for example, a synthetic resin. The arc-shaped curved surface portion 2a of the pad 2 is formed along, for example, a conical curved surface portion. Of the abdominal portion P1 of the user U shown in FIG. Is mounted in a recess in the middle abdomen P5. The hollow space of the pad 2 is filled with a sponge plate S1-S4 rolled concentrically, and the sponge plate S1-S4 is provided with air to impart heat retention to the middle abdomen P5.

A cover plate 3 is attached to the opening end of the pad 2 opposite to the curved surface portion 2a. Ear portions 4 and 5 are extended on the left and right sides of the pad 2. Between one ear part 4 and the other ear part 5, a rubber band 7 in which a rubber string 6 is connected to the center part so as to be adjustable in length is attached.
The crotch string portion 8 has one end connected to the left ear 4 and the other end connected to the right ear 5. The fastening string portion 9 has one end connected and fixed to the center of the crotch string portion 8 and the other end connected and fixed to the rubber string 6 via the attachment plate 7a.

  When the pad 2 is worn, as shown in FIG. 2, the tightening string portion 9 is worn so as to be pulled between the thigh portions P6 and P7 of the user, and the band 7 is placed on the abdomen with the curved surface portion 2a applied to the middle abdomen P5. Wrap around P5. In this state, bend the knee P10 on the snowboard Sp, and hold the basic posture in which the center of gravity of the user U is lowered closer to the snowboard Sp by holding the pad 2 while placing the curved surface portion 2a on the middle abdomen P5. Can do. About wearing of the pad 2, you may wear | wear to the user's U's bare skin directly, you may wear it on the underwear, and it can wear in a free aspect according to a use condition, a practice condition, etc.

That is, the crotch string part 8 and the tightening string part 9 are worn together with the band 7 on the flat ground, the pad 2 is attached to the practitioner's abdomen, and the following (a)- As noted in item (c).
(A) The curved surface portion 2a of the pad 2 is applied to the central portion of the practitioner's umbilical portion P2.
(B) The position is maintained by sandwiching the pad 2 at the middle abdominal part P5 between the upper abdominal part P3 and the lower abdominal part P4 (near the pubic bone) around the umbilicus part P2.
(C) While holding the pad on the abdomen P1, the head P8 is positioned above the snowboard Sp, and then bends in the order of the ankle P9, the knee P10, and the hip joint P11 as shown in FIG.

  By applying the tensile force of the rubber band 7 to the pad 2, the pad 2 is moderately pressed against the mid-abdominal part P5, and the basic posture is made conscious during sliding, from the stick standing slip shown in FIG. 9 (b) to the basic posture. Use the corrective power to return.

As shown in FIG. 9 (c), even if the upper body of the trainer U is turned too far forward by the moderate compression force of the pad 2 against the middle abdomen, the trainer U immediately notices during the run, Return to the action of the matter.
Even if the knee P10 does not bend as shown in FIG. 9 (d) due to the moderate compression force of the pad 2 against the middle abdomen P5, and the bent posture is bent at the waist, Be aware of the matter in (c) and encourage it to bend down and correct it.

By making the practitioner aware of the matters (b) and (c) during the run, the behavior that the learner U bends in the Japanese style toilet is reflective without causing fear to the snowboard Sp on which the load is applied. The umbilicus part P2 which becomes the center of gravity of the trainee U approaches the snowboard Sp, and the sliding state is stabilized.
In addition, by making the trainer U aware of the items (b) and (c) during the run, the straight down, which is the posture of the approach performed on the jumping base, is stabilized as shown in FIGS. 10 (a) and 10 (b). .

Further, by making the practitioner U aware of the items (b) and (c) during the run, the side slip is stabilized as shown in FIGS. 10 (c) and 10 (d).
For beginners and beginners, the head falls to the toe side and the buttocks protrude to the heel side, becoming a so-called `` heavy hip '', or becoming a warped posture or sticking posture after stretching the chest and bending the back too much Although there is a tendency, these tendencies can be corrected by making the items (b) and (c) conscious.

In the latter half of the turn run, as shown in FIG. 10E, the body of the trainer U is likely to be blown outward by centrifugal force or gravity drop. At this time, in particular, in the standing posture and the backward warping posture seen with the tip of the toe, the posture of the practitioner U cannot withstand the centrifugal force or the gravity drop, and the edge on the heel side is hung from the basic posture.
That is, there is a possibility that the practicer U hits the back of the head due to the reverse edge state, but by being aware of the matters (b) and (c) above, the risk of hitting can be avoided. For this reason, in the field guidance to the practitioner U, in the second half of the turn-sliding, he / she is conscious of a low posture and urges him to imagine the action of embracing the Dotball.

In Example 1, when the pad 2 is mounted, the curved surface 2a is applied to the middle abdomen P5 between the upper abdomen P3 and the lower abdomen P4 of the practitioner U, and the pad 2 is applied and held. By wearing the pad 2 with the rubber band 7, the curved surface 2a always gives a pressing feeling to the middle abdomen P5, makes the user feel conscious of the image of holding the dotball, and bends the knee P10 on the snowboard Sp. The basic posture in which the center of gravity of the user U is moved closer to the snowboard Sp is maintained.
In fact, by appropriately pressing the umbilicus P2, the pubic bone can be easily lifted forward of the user U, and the toe side and the heel side can be easily balanced.

In other words, newcomers such as beginners and beginners of snowboarding and beginners and practitioners U tend to stand on their feet and postures with their upper body facing forward with respect to the direction of travel, as well as the head falling to the toe side and the buttocks The posture which protrudes to the side is rationally corrected, and the basic posture can be always conscious and the snowboarding of the practitioner can be effectively improved in a short period of time.
Moreover, since the pad 2 is formed from a synthetic resin in a semi-cylindrical shape, it is lightweight, convenient to carry and easy to handle, and the manufacturing cost is reduced, which can be used for sales expansion and popularization as an inexpensive training tool.

[Configuration of Example 2]
FIG. 3 shows a second embodiment of the present invention. The difference between the second embodiment and the first embodiment is that the radius of curvature of the curved surface portion 2a can be changed as desired.
In this case, the pad 2 has a hollow semi-cylindrical shape obtained by bending a single elastic plate into a curved shape by elastic deformation. Two rows of dovetail grooves 10 and 11 along the axial direction are formed on the inner surfaces facing vertically. Further, a separate adjustment plate 14 having a certain width dimension H1 is prepared, and dovetail mortises 12 and 13 corresponding to the dovetail grooves 10 and 11 are integrally formed on both upper and lower end faces thereof.

  By selectively sliding the upper and lower ant tenons 12 and 13 into the upper and lower ant grooves 10 (11) from the ends of the adjusting plate 14 and fitting them, the curved surface portion 2a of the pad 2 is elastically deformed and its radius of curvature is increased. The size can be changed. In the state of FIG. 2, when the width dimension of the opening part on the opposite side to the curved-surface part 2a of the pad 2 is set to H2, and the distance between the dovetail grooves 11 and 11 (10, 10) facing up and down is set to H3 (H4). , H2> H3> H4> H1. In this case, one end of the band 7 penetrates the left end of the pad 2 and is connected and fixed in a loop, and the other end penetrates the right end of the pad 2 and is connected and fixed in a loop.

In the second embodiment, the upper and lower ant tenons 12 and 13 are selectively fitted into the upper and lower ant grooves 10 and 11 so that the curved surface portion 2a of the pad 2 is elastically deformed. Thus, the radius of curvature of the curved surface portion 2a can be changed as desired to be adjusted so as to be easily attached to the abdomen P5.
The dovetail grooves 10 and 11 are set in two rows. However, the dovetail grooves 10 and 11 may be set in a plurality of rows such as 3 rows and 4 rows according to the use situation. The above magnitude relation is an example, and the magnitude relation among H1, H2, H3, and H4 related to the magnitude change of the curvature radius (bending condition) of the curved surface portion 2a can be set as desired, for example, H1>H2>H3>. You may make it the relationship of H4.
Alternatively, a plurality of adjustment plates 14 having different width dimensions H1 may be prepared, and an appropriate adjustment plate 14 may be selected and fitted into the dovetail grooves 10 and 11 as desired by the practitioner U.

[Configuration of Example 3]
FIG. 4A shows a third embodiment of the present invention. The difference between Example 3 and Example 1 is that the pad 2 is formed in a hollow shape with a synthetic resin, and the inside of the hollow is used as an accessory storage chamber 2b.
In this case, both left and right ends of the pad 2 are closed by the closing plates 2f and 2g, and an entrance 15 for a small article is formed on the upper surface of the pad 2, and a cloth-covered zipper cover member 16 for opening and closing the entrance 15 is provided. Is provided. When the doorway 15 is closed, the lid member 16 is detachably bound to a fastener 16a provided on the lid plate 3.
In the third embodiment, everyday articles such as wallets and mobile phones are stored in the hollow of the pad 2 or used as an emergency box for putting a therapeutic agent or bandage to give first aid in case of injury. Good.

[Configuration of Example 4]
FIG. 4B shows a fourth embodiment of the present invention. The fourth embodiment is different from the first embodiment in that the inner portion 2d corresponding to the circumference of the middle abdomen P5 of the pad 2 is bent along the middle abdomen P5 so as to form a gentle arc.
In Example 4, it becomes easy to apply the pad 2 to the mid-abdominal part P5 accurately, and it becomes easy to correct so that the practicer U may take a basic posture at the time of sliding.

[Configuration of Example 5]
FIG. 5 shows a fifth embodiment of the present invention. The fifth embodiment is different from the first embodiment in that the pad 2 can be worn together with the innerwear 20 for cold protection.
In the fifth embodiment, instead of the band 7, an inner wear 20 including wear parts of a trunk part 20a, a tights part 20b, and a belly wrap part 20c formed to extend to the left and right of the trunk part 20a is provided. A stomach band 20c having a wide belt shape is detachably attached to the pad 2 at both left and right ends.

A U-shaped collar portion 21 is attached to the pad 2 in place of the ear portions 4 and 5, and the user wears the inner wear 20 at the time of use, and the end portion 20d with the fastener of the abdomen portion 20c. Is wound around the buttocks 21 to attach the pad 2 to the user's middle abdomen P5.
In Example 5, it is convenient to be able to wear the pad 2 together with the cold protection inner wear 20.

[Configuration of Example 6]
FIG. 6 shows Embodiment 6 of the present invention.
The pad 31 of 30 of the snowboard practice apparatus shown to Fig.6 (a) is formed in the semicylindrical shape, and has the main part 31a located in the center. The main part 31a has a left half cylinder part 31b and a right half cylinder part 31c connected to the left end part and the right end part by rubber strings 32a and 32b, respectively. The rubber band 33 has one end connected to the rubber cord 32a of the left half cylinder portion 31b and the other end connected to the rubber cord 32b of the right half cylinder portion 31c.

  The curved surface portion 31d of the main portion 31a is applied to the middle part P5 of the user U, the pad 31 is attached to the user U by the band 33, and when practicing the snowboard Sp, the knee is bent on the snowboard Sp, and the curved surface portion The basic posture in which the center of gravity of the user U is lowered closer to the snowboard Sp is held by holding the pad 31 with 31d placed on the middle abdomen P5.

In Example 6, in addition to the same effects as in Example 1, as the user U winds the band 33 tightly around the middle abdomen P5, the rubber strings 32a and 32b extend longer and the right half cylinder part 31c and the left half cylinder part It becomes difficult for 31b to bend with respect to the mid-abdominal part P5 (refer FIG.6 (b)).
For this reason, even if the band 33 is tightened strongly, the right half cylinder part 31b and the left half cylinder part 31c do not bite into the middle abdomen P5 and can be used with confidence.

[Configuration of Example 7]
FIG. 7 shows a seventh embodiment of the present invention.
The pad 2 in Example 7 has a semi-cylindrical shape in which one elastic plate is bent in a curved shape by elastic deformation, and the pad 2 is bent along the middle abdomen P5 at the center. A flexible bellows 2k is integrally formed.
In Example 7, since the pad 2 has the bellows part 2k, it becomes easy to wear the pad 2 along the middle part P5 of the user U.

[Configuration of Example 8]
FIG. 8A shows an eighth embodiment of the present invention. The difference of the eighth embodiment from the first embodiment is that the curved surface portion 2a of the pad 2 is integrally formed with a projecting ridge portion 2m having a straight arc shape along the axial direction T.
In this case, when the pad 2 is mounted, the curved surface portion 2a can be applied to the upper abdomen P3 and the lower abdomen P4, and the protrusion 2m can be applied to the middle abdomen P4. For this reason, the pad 2 is closely attached to the abdomen P1 without being displaced, and the mounting state of the pad 2 is improved.

[Configuration of Example 9]
FIG. 8B shows Embodiment 9 of the present invention. The ninth embodiment is different from the first embodiment in that the curved surface portion 2 a of the pad 2 is provided with a slit 2 n that forms a straight line along the axial direction T.
In the slit 2n, an elastic rod-like portion 2w formed with two projecting portions 2s, 2q having a cross-sectional arc shape and different diameters selectively selects one of the two projecting portions 2s, 2q. It is detachably provided toward the outside. For this reason, the protrusion 2s (2q) suitable for the midsection P4 of the user U among the two projections 2s, 2q can be selected and applied to the midsection P4.

  That is, the rod-shaped portion 2w is an elastic body such as rubber and is provided corresponding to the slit 2n, and the first protruding portion 2s is set slightly larger in diameter than the second protruding portion 2q. Yes. A groove portion 2j corresponding to the opening end 2v of the slit 2n is formed at the boundary between the first protruding portion 2s and the second protruding portion 2q.

When the first projecting portion 2s is used as a curved surface portion that contacts the umbilicus portion P2, the second projecting portion 2q is elastically reduced and deformed from the outside of the pad 2 through the slit 2n and pushed into the inside. The groove 2j is fitted and attached to the opening end 2v of the slit 2n.
Further, when the second projecting portion 2q is used as a curved surface portion that hits the umbilicus portion P2, the second projecting portion 2q is elastically contracted and deformed from the inside of the pad 2 to pass through the slit 2n and project outside. In this state, the groove portion 2j is fitted and attached to the opening end portion 2v of the slit 2n.

[Modification]
(A) The pad 2 (31) in Example 1-9 may be used as a two-wheel / esboard / T-board or a stoopback correction belt.
(B) The curved surface portions 2a and 31d of the pads 2 and 31 are not limited to circular curved surfaces, but may be parabolic surfaces, hyperboloid surfaces, elliptical surfaces, or the like as conical curved surface portions. The curved surface portions 2a and 31d of the pads 2 and 31 are not limited to a conical curved surface, and may be changed to various curved surfaces or a rectangular tube shape such as a triangle or a pentagon. The pads 2 and 31 are not limited to being hollow, and may be formed to be solid.

(C) As the synthetic resin material of the pad 2, the following resin materials can be applied.
That is, plastics such as polypropylene, polyacetal, polyamide (PA), polycarbonate (PC), polyphenylene ether (PPE), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyethylene (PE), or syndiotactic polystyrene (SPS). Material.
(D) The pad 2 may be formed of a metal material instead of the synthetic resin. As the metal material, not only stainless steel and mild steel but also copper, aluminum, iron, tin, zinc or nickel alloy can be used.

  In the snowboard practice tool according to the present invention, when the pad is mounted, the pad having a curved surface is applied to the middle part between the upper abdomen and the lower abdomen of the practitioner. By wearing the pad with a rubber band, the curved surface always gives a feeling of pressing against the mid-abdomen, making the user feel conscious of the image of holding a dot ball, bending the knee on the snowboard, and snowboarding the user's center of gravity Hold the basic posture that has been lowered. The demand for snowboarding companies that focus on the rationality of training equipment is stimulated, and it becomes possible to apply it to the chemical and mechanical industries through the distribution of related parts.

DESCRIPTION OF SYMBOLS 1,30 Snowboard practice tool 2,31 Pad 2a, 31d Curved surface part 2b The accessory compartment in a pad 2d The inner part of a pad 2k The bellows part 2m, 2s, 2q Protruding part 2n Slit 2w Rod-like part 7, 33 Band 10,11 Dovetail groove 12, 13 Ant mortise 14 Adjustment plate 15 Pad entrance / exit 20 Inner wear 20a Body part 20b Tights part 20c Abdomen winding part 30a Main part 30b Right half cylinder part 30c Left half cylinder part 32a, 32b Rubber string P1 Abdomen P2 Umbilical part P3 Upper abdomen P4 Lower abdomen P5 Middle abdomen S1-S4 Sponge board Sp Snowboard U Practitioner (user)
T-axis direction

Claims (10)

The pad which formed the curved surface part which hits the middle abdominal part between the upper abdominal part centering on the umbilical part and the lower abdominal part among a user's abdominal part, one end part is connected with one end part of the pad, and the other end part is the above-mentioned In a snowboard exercise tool with a rubber band connected to the other end of the pad,
When practicing snowboarding by putting the pad on the user with the band by applying the curved surface part of the pad to the middle abdomen of the user, bending the knee on the snowboard, A snowboard practice tool that maintains a basic posture in which the center of gravity of the user is lowered toward the snowboard by holding the pad against the middle abdomen. A pad having a semi-cylindrical central portion and a left half cylinder portion and a right half cylinder portion respectively connected to the left end portion and the right end portion of the main portion by a rubber string, and one end portion In a snowboard exercise tool comprising a rubber band connected to the rubber string of the left half cylinder part and the other end connected to the rubber string of the right half cylinder part,
Practice the snowboard by attaching the pad to the user with the band by applying the curved surface of the main part to the middle abdomen between the upper abdomen and the lower abdomen centering on the umbilicus among the abdomen of the user And holding the basic posture in which the center of gravity of the user is lowered closer to the snowboard by bending the knee on the snowboard, and holding the pad by placing the curved surface portion against the middle abdomen. A featured snowboard practice tool.   The pad has a semi-cylindrical shape in which a single elastic plate is bent in a curved shape by elastic deformation, and the pad is flexible so that it can be bent along the middle part of the pad. The snowboard practice tool according to claim 1, wherein the bellows part is integrally formed. The pad has a semi-cylindrical shape formed by bending one elastic plate into a curved shape by elastic deformation, and forms a plurality of rows of dovetail grooves along the axial direction on the upper and lower inner surfaces facing each other. an adjustment plate having a constant width dovetail is formed on both end faces, by fitting the upper and lower of the dovetail by selectively slide up and down of the dovetail groove, scaling elastic pre Symbol song surface of the pad 2. The snowboard practice tool according to claim 1, wherein the snowboard practice tool is deformed so that the radius of curvature thereof can be changed.   The snowboard practice tool according to claim 1, wherein an inner portion of the pad corresponding to the periphery of the middle abdomen is curved in an arc shape along the middle abdomen.   Instead of the band, it is equipped with a cold protection inner wear consisting of the wear part of the waist part, tights part and belly wrap part extending to the left and right of the torso part, and the belly wrap part is detachable to the left and right ends of the pad. The snowboard practice tool according to claim 1, wherein the snowboard practice tool is attached to the snowboard practice tool.   2. The snowboard practice tool according to claim 1, wherein the pad is formed in a semi-cylindrical hollow with a synthetic resin, and a sponge plate rolled concentrically is filled in the hollow.   The snowboard practice tool according to claim 1, wherein the pad is formed into a semi-cylindrical hollow with a synthetic resin, and the inside of the hollow serves as an accessory compartment.   The snowboard practice tool according to claim 1, wherein the curved surface portion of the pad is integrally formed with a protrusion having an arcuate cross section that forms a straight line along the axial direction.   The curved surface portion of the pad is provided with a slit that forms a straight line along the axial direction, and the slit has an elastic rod-shaped portion having two projecting portions with arc-shaped cross sections and different diameters. The snowboard practice tool according to claim 1, wherein one of the two projecting portions is selectively detachably attached to the outside with elastic deformation.

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