JP2015144697A - Leg part training device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leg part training device capable of efficiently training iliopsoas muscles being inner muscles at the roots of legs.SOLUTION: A leg part training device 2 includes: a device body 2; a pair of disks 3 arranged in the device body 2 at an interval in the right and left direction in the same posture and respectively rotatably supported; pedals 4 that are attached to the one and the other one of the disks 3 by allowing the phases to differ by 180 degrees and on which right ane left feet F of a user T are placed; and an interlock mechanism 5 for transmitting the rotation of the one disk 3 to the other disk 3 in the same direction and at the same angle. When the disks 3 are rotated in a state where the user T puts the right and left feet F on the respective pedals 4, the right and left feet F are allowed to perform alternate and smooth circular motions in front/back/right/left directions, and the right and left legs L are allowed to perform conical motions with the roots of thigh parts as centers. Thus, iliopsoas muscles being the inner muscles at the roots of the legs L are efficiently trained.

Description

  The present invention relates to a leg training apparatus suitable for training the iliopsoas muscle, which is an inner muscle at the base of a leg.

  As a leg training device, it has a pair of footrests on which the left and right feet of the user are placed and a guide for reciprocally moving these footrests in the left and right directions. It is known that the foot is placed on a footrest and the leg is opened and closed in the left-right direction around the base of the thigh. There is also known a bicycle pedal-type leg training apparatus in which a user sits on a saddle and pedals with left and right feet (see Patent Document 1).

JP 2007-289241 A

  By the way, the conventional leg training device can train specific muscles of the leg according to the operation of each device, but it can be said that it can efficiently train the iliopsoas muscle which is the inner muscle of the base of the leg. However, there was room for improvement as a training device for the iliopsoas muscle. By strengthening the intestinal psoas muscle, it leads to an improvement in running ability in the competition.

  The present invention has been developed to solve the above-described conventional problems, and an object thereof is to provide a leg training apparatus that can efficiently train the iliopsoas muscle, which is the inner muscle of the base of the leg. .

  According to the present invention created to achieve the above object, a device main body, a pair of discs arranged on the device main body in the same posture at intervals in the left-right direction, and rotatably supported, respectively. A pedal that is mounted 180 degrees out of phase with one of the disks and on which the left and right legs of the user are placed, and an interlocking mechanism that transmits the rotation of one disk to the other disk in the same direction and at the same angle And a leg training apparatus characterized by comprising:

  The pedal may include a footrest portion on which a toe is placed from a heel of a user's foot, and a heel side portion of the footrest portion may be rotatably attached to the disc.

  A belt for fixing the user's foot may be provided on the pedal.

  You may provide the load mechanism which provides resistance to rotation of a disc in the said interlock mechanism.

  Further, a chair on which the user is seated may be disposed at a distance from the apparatus main body so as to face the pedal, and an adjustment mechanism for adjusting the distance between the chair and the apparatus main body may be provided.

  According to the leg training apparatus of the present invention, the pedals are attached to a pair of discs that rotate in the same direction and at the same angle with a phase difference of 180 degrees so that the user can move the left and right feet. By rotating the disc with each pedal mounted, the left and right feet move in a circular motion smoothly alternately back and forth and left and right, and the left and right legs conically move around the base of the thigh. As a result, the left and right iliopsoas muscles, which are the inner muscles at the bases of the legs, can be efficiently trained. In addition, the iliopsoas muscle can be trained in a well-balanced manner by alternately rotating the disc clockwise and counterclockwise.

It is a side view which shows the use condition of the leg training apparatus which concerns on one Embodiment of this invention. It is the II-II arrow directional view of FIG. It is a perspective view which shows the interlocking mechanism of the said leg training apparatus. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5. It is explanatory drawing of the pedal of the said leg training apparatus, (a) is a partial side sectional view of a pedal and a disc, (b) is a perspective view of a pedal, (c) is a cc line sectional view of (b). It is. It is explanatory drawing which shows the motion of the pedal of the said leg training apparatus, (a) is an initial state, (b) is the state which the disk rotated 90 degree | times from (a), (c) is a circle from (b). The state in which the plate is rotated 90 degrees, (d) shows the state in which the disc has been rotated 90 degrees from (c). It is explanatory drawing which shows a mode that a user's leg carries out conical movement centering on the base of a thigh as the disc of the said leg training apparatus rotates.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiment are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

(Outline of leg training device 1)
1 to 3 show a leg training apparatus 1 according to an embodiment of the present invention. 1 is a side view showing a use situation of a leg training apparatus 1 according to the present embodiment, FIG. 2 is a view taken along the line II-II in FIG. 1, and FIG. 3 is a perspective view showing an interlocking mechanism 5 of the leg training apparatus 1. FIG. A leg training device 1 according to the present embodiment includes a device main body 2, a pair of discs 3 arranged on the device main body 2 in the same posture at intervals in the left-right direction, and rotatably supported respectively. A pedal 4 which is attached to one and the other of the discs 3 with a phase difference of 180 degrees and on which the left and right feet F of the user T are placed, and the rotation of one disc 3 in the same direction as the other disc 3 and And an interlocking mechanism 5 that transmits the same angle. The interlocking mechanism 5 is provided with a load mechanism 6 for imparting resistance to the rotation of the left and right discs 3.

  As shown in FIG. 1, the user T of the leg training device 1 sits down on a chair 7 that is spaced from the device body 2 so as to face the pedal 4, and puts the left and right feet F on each side. The disc 3 is rotated on the pedal 4. Then, the left and right feet F move smoothly and circularly alternately forward and backward and left and right (see FIG. 8), and the left and right legs L conically move around the base of the thigh (see FIG. 9). Thereby, the left and right iliopsoas muscles (large psoas muscle, small psoas muscle, iliac muscles, etc.) that are the inner muscles at the base of the leg L of the user T can be efficiently trained. In addition, by rotating the disc 3 alternately clockwise and counterclockwise, it is possible to train the iliopsoas muscle with a good balance. Further, by adjusting the rotational resistance of the disc 3 by the load mechanism 6, an appropriate load corresponding to the muscle strength of the user T can be applied to the intestinal psoas muscle, and the training efficiency is improved. Hereinafter, each component of the leg training apparatus 1 which concerns on this embodiment is demonstrated.

(Device body 2)
4 is a sectional view taken along line IV-IV in FIG. 2, and FIG. 5 is a sectional view taken along line V-V in FIG. As shown in FIGS. 4 and 5, the apparatus main body 2 includes a base plate 8 placed on the floor A and a cover case 9 attached to the upper surface of the base plate 8. The base plate 8 is made of a metal such as stainless steel, aluminum, or iron, supports the rotating shaft of the disc 3 and the rotating shaft of the interlocking mechanism 5, has a constant weight, and the user rotates the disc 3. At this time, it also functions as an anchor plate for stably mounting the apparatus main body 2 on the floor. An elastic plate such as a rubber plate that suppresses slippage with the floor A may be attached to the lower surface of the base plate 8.

  A cover case 9 is attached to the upper surface of the base plate 8 with bolts and nuts or the like. The cover case 9 is a case made of a resin such as plastic whose bottom is opened, and houses the interlocking mechanism 5 supported by the base plate 8. The cover case 9 has a front plate 10 that is inclined so as to face the user T seated on the chair 7 (see FIG. 1). The front plate 10 is inclined from 90 degrees to, for example, about 5 to 10 degrees with respect to the floor A on which the base plate 8 is placed, and a pair of holes 11 in which the discs 3 are arranged are spaced apart in the left-right direction. Has been.

(Disk 3)
As shown in FIGS. 2 to 4, a disc 3 having a slightly smaller diameter than the hole 11 is disposed in the hole 11 of the front plate 10 of the cover case 9. The diameter of the disc 3 is, for example, about 30 to 50 cm. The disc 3 is disposed so as to be flush with the surface of the front plate 10, and a rotating shaft 12 is attached to the center of the back surface. The rotary shaft 12 is rotatably supported by a support plate 13 erected on the base plate 8 via a bearing 14. The material of the disc 3 may be metal or resin.

(Interlocking mechanism 5)
As shown in FIGS. 3 to 5, the left and right discs 3 are rotated in conjunction with the interlocking mechanism 5. The interlocking mechanism 5 transmits the rotation of one disk 3 to the other disk 3 in the same direction and at the same angle, and the side gear 15 provided on the rotating shaft 12 of the one disk 3 and the other disk 3. It has the side gear 15 provided in the rotating shaft 12 of the board 3, and the center gear 16 arrange | positioned between the side gears 15 and meshing | engaging.

  A rotation shaft 17 is attached through the center of the center gear 16, and the rotation shaft 17 is rotatably supported by support plates 13 and 18 erected on the base plate 8 via a bearing 19. The left and right side gears 15 have the same number of teeth, whereby the rotation of one disk 3 is transmitted to the other disk 3 in the same direction and at the same angle.

(Load mechanism 6)
As shown in FIGS. 3 and 5, the interlocking mechanism 5 is provided with a load mechanism 6 for imparting resistance to the rotation of the left and right discs 3. The load mechanism 6 includes a fixed pulley 20 provided on the rotation shaft 17 of the center gear 16, a tension pulley 21 disposed in the vicinity of the fixed pulley 20, a belt 22 wound around these pulleys 20, 21, a tension And a moving mechanism 23 for separating the pulley 21 from the fixed pulley 20. The belt 22 is made of an elastic material such as rubber and slightly expands and contracts. When the tension pulley 21 is separated from the fixed pulley 20 and the belt 22 is stretched, the rotational resistance of the disk 3 increases according to the degree of tension, and when the tension pulley 21 is brought close to the fixed pulley 20 and the belt is loosened, the disk 3 Rotational resistance of is reduced.

  A rotary shaft 24 is attached through the center of the tension pulley 21, and the rotary shaft 24 is supported on support plates 13 and 18 erected on the base plate 8 via bearings 25. As shown in FIG. 6 which is a sectional view taken along line VI-VI in FIG. 5, the bearing 25 is attached to a square frame 26, and the frame 26 is formed in the support plate 18 in a square hole shape. The guide hole 27 is mounted so as to be movable and non-rotatable. The guide hole 27 is formed along the direction in which the rotating shaft 24 of the tension pulley 21 moves close to and away from the rotating shaft 17 of the fixed pulley 20 by guiding the frame body 26.

  The frame body 26 is moved along the guide hole 27 by the moving mechanism 23. The moving mechanism 23 includes a bracket 28 provided in the frame body 26, a screw hole 29 formed in the bracket 28, a screw rod 30 screwed into the screw hole 29, and a screw rod 30 provided in the support plate 18. A bracket 31 that is rotatably supported, a bevel gear 32 provided at an end of the screw rod 30, a rod 34 that is rotatably supported by the cover case 9 and provided with a bevel gear 33, and a rod 34. And a screw feed mechanism having a knob 35. According to this configuration, when the user T turns the knob 35, the screw rod 30 rotates, the frame body 26 moves along the guide hole 27, the tension of the belt 22 changes, and the left and right discs 3 change. The rotation resistance can be adjusted. Note that the load mechanism 6 is not limited to the above-described configuration, and may be configured to separate the tension pulley 21 from the fixed pulley 20 using a jack that lifts the vehicle body of the automobile. Further, the belt 22 shown in FIG. The type of pressing may be used.

(Pedal 4)
As shown in FIG. 2, pedals 4 are attached to the surfaces of the left and right discs 3 with one and the other being 180 degrees out of phase. As shown in FIG. 1, the left and right feet F of the user T are placed on these pedals 4. As shown in FIGS. 7A and 7B, the pedal 4 has a footrest portion 36 on which a toe is placed from the heel of the foot F of the user T, and a heel side portion 37 of the footrest portion 36. Is rotatably attached to the disc 3. Here, the heel side portion 37 means a portion on the heel side with respect to an intermediate point between the heel side end portion 38 and the toe side end portion 39 of the footrest portion 36.

  As shown in FIG. 7A, a support rod 40 is vertically attached to the heel side portion 37 on the back surface of the footrest portion 36, and the support rod 40 is disc-shaped by a universal joint (universal joint) 41. 3 is attached to be freely tiltable and rotatable. Specifically, the disc 3 is provided with a conical hole 42 through which the support rod 40 passes, and a sphere 43 is provided at the end of the support rod 40 inserted through the hole 42. It is supported by a spherical concave portion of a receiving portion 44 attached to the back surface of the disc 3. As a result, the support rod 42 can be tilted and rotated within a range where the support rod 42 abuts on the conical hole 42. The spherical portion 43 and the receiving portion 44 constitute a universal joint 41.

  The support rod 40 is fitted with an elastic collar 45 formed in a cylindrical shape from a flexible material such as rubber between the disc 3 and the footrest 36, and the elastic collar 45 is bent. As a result, the pedal 4 tilts somewhat with respect to the disc 3. Accordingly, as shown in FIG. 1, when the user T rotates the disk 3, the pedal 4 is allowed to tilt with respect to the disk 3, and the angle of the ankle of the user T is somewhat free. A degree is generated, and the burden on the ankle is reduced as compared with the case where the angle of the ankle is fixed.

(belt)
As shown in FIGS. 7A and 7B, the pedal 4 is provided with a belt 46 for fixing the foot F of the user T. The belt 46 includes a toe belt 47 for fixing the toe side of the foot F and an ankle belt 48 for fixing the ankle (see FIG. 1). The ankle belt 48 is attached to a heel wall 49 formed on the heel side of the footrest portion 36 of the pedal 4. Of course, the lengths of these belts 47 and 48 can be adjusted.

  As shown in FIG. 7C, which is a sectional view taken along the line cc of FIG. 7B, the footrest portion 36 of the pedal 4 is provided with a pair of inclined surfaces 50 formed so that the center side is lowered. The width direction corner 51 of the back of the shoe S of the user T's foot F is pressed against the inclined surface 50. Accordingly, the user T can press the corner 50 on the back of the shoe S against the inclined surface 50 regardless of the size of the shoe S, and can stably rotate the disc 3 via the pedal 4. it can. Further, when the instep of the foot F is pushed downward by the toe belt 47, the corner 51 on the back of the shoe S is pressed against the inclined surface 51, and the shoe S and the pedal 4 are integrated. It becomes easy to rotate the plate 3.

(Chair 7, adjustment mechanism 52)
As shown in FIG. 1, in the training apparatus 1 according to the present embodiment, a chair 7 on which a user T is seated is disposed at a distance from the apparatus main body 2 so as to face the pedal 4. 2 is provided with an adjustment mechanism 52 for adjusting the distance between the two. The chair 7 can adjust the height of the seat surface and the angle of the backrest. Various mechanisms such as a screw feed mechanism and a cylinder mechanism are applied to the adjusting mechanism 52 that adjusts the distance between the chair 7 and the apparatus main body 2.

  Regardless of the length of the leg L of the user T seated on the chair 7, the foot F can be pedaled 4 with the knee substantially stretched by adjusting the distance between the chair 7 and the apparatus main body 2 appropriately by the adjusting mechanism 52. Can be fixed to. Thus, when the user T rotates the disc 3 with the left and right feet F placed on the pedals 4, the left and right legs L will conically move around the base of the thigh (FIG. 9). Reference), the iliopsoas muscle, which is the inner muscle at the base of the leg L, can be efficiently trained.

  The chair 7 and the adjusting mechanism 52 described above are not essential components of the leg training apparatus 1 according to the present invention, and an arbitrary chair at the home of the user T is placed at a predetermined interval (the leg of the user T). It is also possible to use them by separating them from the sense that the knee of L is substantially stretched).

(Action / Effect)
As shown in FIG. 1, when using the leg training device 1, the user T sits on a chair 7 facing the pedal 4 and spaced from the device body 2, and the left and right feet F Is placed on the pedal 4 and the disc 3 is rotated by the force of the leg L. As shown in FIG. 2, the pedal 4 is attached to a pair of disks 3 that rotate in the same direction and at the same angle with a phase difference of 180 degrees.

  Therefore, as shown in FIGS. 8 (a), 8 (b), 8 (c), and 8 (d), the left and right feet F of the user T move smoothly and circularly alternately back and forth and left and right. As shown in FIG. 9, the left and right legs L perform a conical motion around the base of the thigh. As a result, the left and right iliopsoas muscles, which are the inner muscles at the bases of the legs, can be efficiently trained.

  Here, the left and right legs L of the user T are alternately moved in the front-rear direction as shown in FIGS. 8A and 8C and are also shown in FIGS. 8B and 8D. In this way, the disc 3 can be rotated in a balanced manner with the force of the left and right iliopsoas muscles without using the reaction of the body, and the left and right iliopsoas muscles are efficiently trained. It is done.

  8 shows an example in which the rotation direction of the disk 3 is counterclockwise, it is needless to say that it may be clockwise. Further, if the disk 3 is alternately switched between the counterclockwise direction and the clockwise direction for every predetermined number of rotations, the iliopsoas muscle can be trained in a balanced manner. The rotation direction of the disc 3 may be switched every plural rotations or every rotation.

  Further, as shown in FIG. 1, according to the length of the leg L of the user T seated on the chair 7, the distance between the chair 7 and the apparatus main body 2 is adjusted by the adjusting mechanism 52, and the leg L of the user T is adjusted. When the user T rotates the disc 3 with the left and right feet F placed on the pedals 4 by fixing the feet F to the pedals 4 with the knees substantially extended, as shown in FIG. Thus, it is ensured that the left and right legs L conically move around the base of the thigh, and the iliopsoas muscle at the base of the leg L can be trained accurately.

  As shown in FIG. 7A, the heel side portion 37 of the footrest portion 36 of the pedal 4 is rotatably attached to the disc 3, so that the user T shown in FIG. Compared with the case where the toe side portion is rotatably attached to the disc 3, the leg L is turned with the angle of the ankle substantially fixed, and as shown in FIG. It becomes easy to conically move around the base of the thigh with the knee substantially extended. Therefore, the iliopsoas muscle at the base of the leg L can be trained accurately.

  As shown in FIG. 1, since the pedal 4 is provided with a belt 46 for fixing the foot F of the user T, the user T can accurately fix the foot F to the pedal 4 with the belt 46. Therefore, when the user T applies a force to the pedal 4 in a direction parallel to the surface of the disk 3 in order to turn the disk 3, the foot F does not slip from the pedal 4 and the disk 3 is stably and reliably attached. It can be turned on and the iliopsoas muscles can be trained accurately.

  As shown in FIGS. 3 and 5, the interlock mechanism 5 that interlocks the left and right disks 3 is provided with a load mechanism 6 that provides resistance to the rotation of the disk 3. By adjusting the rotation resistance, it is possible to apply an appropriate load according to the muscle strength of the user T to the iliopsoas muscle, and training efficiency is improved.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiments, and various modifications within the scope of the claims. Needless to say, examples and modifications also belong to the technical scope of the present invention.

  For example, the interlocking mechanism that interlocks the left and right discs 3 is not limited to a gear train, and may be a belt and a pulley, or a gear and a chain. Further, the rotating shaft 17 of the center gear 16 shown in FIG. 3 may be rotationally driven by a motor so that the disk 3 is positively rotated.

  INDUSTRIAL APPLICABILITY The present invention can be used for a leg training apparatus for training the iliopsoas muscle, which is the inner muscle of the base of the leg thigh.

DESCRIPTION OF SYMBOLS 1 Leg training apparatus 2 Apparatus main body 3 Disc 4 Pedal 5 Interlocking mechanism 6 Loading mechanism 7 Chair 36 Footrest part 37 Heel side part 46 Belt 52 Adjustment mechanism T User F Foot

Claims (5)

The device body;
A pair of discs arranged in the same posture at an interval in the left-right direction on the device main body, each supported rotatably.
A pedal on which one of these discs is attached to the other and 180 degrees out of phase and on which the left and right feet of the user are placed;
A leg training apparatus comprising: an interlocking mechanism for transmitting rotation of one disk to the other disk in the same direction and at the same angle. The pedal has a footrest portion on which a toe is placed from a heel of a user's foot,
The leg training apparatus according to claim 1, wherein a heel side portion of the footrest portion is rotatably attached to the disc.   The leg training apparatus according to claim 1, wherein a belt for fixing a user's foot is provided on the pedal.   The leg training apparatus according to any one of claims 1 to 3, wherein the interlocking mechanism is provided with a load mechanism that applies resistance to rotation of the disc. A chair on which a user is seated is disposed at a distance from the apparatus main body so as to face the pedal,
The leg training apparatus according to any one of claims 1 to 4, further comprising an adjustment mechanism that adjusts a distance between the chair and the apparatus main body.

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