JP6251479B2 - Running training device - Google Patents

Description

  The present invention relates to a running training device for training muscle strength necessary for running.

  Devices have been proposed that swing a user up and down for various purposes such as maintaining, strengthening, and increasing muscular strength, eliminating lack of exercise, or rehabilitating exercise functions. The user can exercise mainly on the lower limbs by simply exercising on the boarding platform that swings up and down, or by receiving upward acceleration from the boarding platform simply by standing or standing still. .

  With regard to this type of technology, Patent Document 1 describes an apparatus that imparts various swing motion effects by swinging a boarding platform on which a user is boarded in the vertical direction and the horizontal direction. The device of Patent Document 1 is said to be able to loosen muscle stiffness by gently oscillating a user in a balanced manner in a direction in which the vertical direction and the horizontal direction are combined.

  Patent Document 2 describes a device that moves a boarding platform on which a user boardes up and down so that the board rises faster than descending. In this device, a board mounted on the lifting member is moved up and down by driving a sliding member provided on the lifting member with a groove cam provided around the lifting drive member that rotates horizontally. . The device of Patent Document 2 is configured such that the ascending speed of the sliding body is higher than the descending speed by making the angles of the ascending and descending inclined portions of the groove cam different. According to Patent Document 2, it is said that a jumping action such as a trampoline can be given to a user who has boarded the vehicle by intermittently raising the movement.

JP 2009-291320 A JP 2009-45277 A

  The movement of running requires kicking the ground with the sole of the foot and floating the body in the air, so the muscular strength of the lower limbs is greater than walking. For this reason, for those who lack the muscle strength of the lower limbs compared to the mass of the body, such as elderly people and those who perform rehabilitation training of motor functions, run if you can easily train the muscle strength to run You can never lose joy.

  In recent years, children's physical strength has declined, and the number of children who have difficulty standing for a long time due to the decline in their skeleton and muscle strength is increasing. Even for young adults, many people have difficulty running on the road satisfactorily due to weakness of the lower limbs due to chronic lack of exercise and weight gain due to excessive intake of nutrients. Therefore, even if it is a young healthy person, if the muscular strength for running can be trained easily, it is thought that it can spend every day on health both physically and mentally.

  On the other hand, the device of Patent Document 1 gives a gentle up / down and left / right swinging stimulus to the user, and does not train the running operation. The device of Patent Document 2 gives acceleration to the user to push up, which is a forced vertical movement that jumps up with the knee extended. For this reason, the apparatus of patent document 2 was not necessarily what trains the muscular strength used for a natural running exercise.

  This invention is made | formed in view of the said subject, and provides the apparatus which can train easily the muscular strength required for a user's natural running exercise | movement.

According to the present invention, a base, a boarding board on which a user boardes, and an elasticity that supports the boarding base so as to be able to swing up and down with respect to the base and elastically biases the boarding board upward. A support member; and an accelerating portion that periodically imparts acceleration to the boarding base in accordance with the swinging period of the boarding base, wherein the acceleration part moves the boarding base that swings up and down from the center of swinging. An upward acceleration is imparted to the boarding base when it is below, and the elastic support member includes a first elastic member and a second elastic member, and the first elastic member is between the boarding base and the base. The vertical distance between the upper surface of the second elastic member and the base is variably adjustable, and the platform that is supported by the first elastic member and swings up and down is set lower than a predetermined height. When the second elastic member is compressed, the board is elastically moved upward. By urging, the elastic coefficient of the elastic support member in the settling state is increased, and the predetermined height applied to the settling state and the swinging period of the boarding base are adjusted by variably adjusting the vertical distance. There is provided a running training device characterized by changing .

  According to the above invention, the elastic support member that supports the boarding board elastically urges the boarding board upward, so that the user who boarded the boarding board can kick up the road surface flexibly using the knees and ankles. A natural repulsive force that imitates the running state is given. Furthermore, in accordance with the swing cycle of the board that swings up and down, the acceleration unit applies acceleration upward to the board when the board is below the center of swing, so the swing of the elastic support member is attenuated. The repulsive force can be periodically applied to the user without doing so.

  According to the running training device of the present invention, an acceleration imitating the repulsive force from the road surface when a person travels naturally is loaded on the user. For this reason, it is possible to easily train the muscular strength necessary for the user's natural running exercise.

It is a front schematic diagram of the running training apparatus of 1st embodiment of this invention, and is a figure which shows the raising state which has a boarding board above the rocking | fluctuation center. It is a front schematic diagram of the running training apparatus of 1st embodiment of this invention, and is a figure which shows the descent state in which a boarding board is below the rocking | fluctuation center. FIG. 3A is a cross-sectional view taken along line AA in FIG. FIG. 3B is a cross-sectional view taken along line BB in FIG. It is a graph which shows the height position and upward acceleration of the boarding board of 1st embodiment of this invention. It is a front schematic diagram of the raising state of the running training apparatus of 2nd embodiment of this invention. It is a front schematic diagram of the descent state of the running training apparatus of 2nd embodiment of this invention. It is explanatory drawing of a rigidity adjustment part. It is a graph which shows the height position and upward acceleration of the boarding board of 2nd embodiment. It is a front schematic diagram of the running training apparatus of 3rd embodiment of this invention. It is a functional block diagram of the running training apparatus of 3rd embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same constituent elements are denoted by the same reference numerals, and redundant description is omitted as appropriate.

  The various components of the running training apparatus of the present invention do not have to be individually independent, but a plurality of components are formed as a single member, and a single component is formed of a plurality of members. That a certain component is a part of another component, a part of a certain component overlaps a part of another component, and the like.

  In the present embodiment, there are cases where the front, back, left, right, up, and down directions are defined and described, but this is provided for convenience in order to explain the relative relationship between the components, and the product according to the present invention is manufactured. It does not limit the direction during use. Specifically, the fact that the boarding platform swings in the vertical direction is not limited to the case where the boarding platform swings in the vertical vertical direction, but is oblique to the normal of the installation surface on which the running training apparatus of the present invention is installed. Allow to swing in the direction.

<First embodiment>
1 and 2 are schematic front views showing a running training apparatus 100 according to the first embodiment of the present invention. FIG. 1 shows the rising state of the running training apparatus 100. The period in which the boarding platform 10 that swings up and down is positioned above the center of swinging is referred to as the rising state of the running training apparatus 100. FIG. 2 shows the lowered state of the running training apparatus 100. The period when the boarding platform 10 that swings up and down is positioned below the center of swinging is referred to as a lowered state of the running training apparatus 100.

  FIG. 3A is a cross-sectional view taken along line AA in FIG. FIG. 3B is a sectional view taken along line BB in FIG. In FIGS. 3A and 3B, the base 60 (see FIGS. 1 and 2) is not shown.

  First, the outline | summary of the running training apparatus 100 of this embodiment is demonstrated. The running training apparatus 100 includes a board 10 on which a user U boards, an elastic support member 20 that supports the board 10 so as to be able to swing up and down, and elastically biases the board 10 upward, and a boarding table. And an accelerating unit 50 that periodically applies an acceleration to the boarding base 10 in accordance with 10 swing periods. The acceleration unit 50 is characterized in that an upward acceleration is applied to the boarding base 10 when the boarding base 10 that swings up and down is below the center of swinging.

  Next, the running training device 100 will be described in detail. The running training device 100 is a device that gives an acceleration imitating the reaction force that the lower limb receives from the road surface when the user U who has boarded himself / herself runs. The running training apparatus 100 is used by placing a base 60 on a flat floor.

  The running training apparatus 100 includes a boarding base 10 that is disposed to face the base 60 above. The boarding platform 10 is supported by a plurality of support shafts 16 and swings up and down relatively with respect to the base 60. The support shaft 16 is a guide member that guides the swing of the boarding base 10 with respect to the base 60. The boarding base 10 is provided with a through hole 17 through which the upper end of the support shaft 16 is inserted.

  The lower end of the support shaft 16 is fixed to the base 60. The boarding base 10 and the base 60 are elastically connected by the elastic support member 20. The elastic support member 20 of this embodiment is a spring and is mounted around the support shaft 16. The elastic support member 20 applies a biasing force (repulsive force) in a direction in which the boarding base 10 is pushed upward when the boarding base 10 comes closer to the base 60 than a predetermined interval. When the boarding base 10 is separated upward with respect to the base 60 beyond the predetermined distance, the elastic support member 20 may apply an urging force (suction force) in a direction to pull down the boarding base 10 downward. Alternatively, the elastic support member 20 may be spaced apart from the boarding base 10 and not apply an urging force substantially upward or downward. Specifically, the upper end and the lower end of the elastic support member 20 may be connected to the boarding base 10 and the base 60, respectively, or one or both of the upper end and the lower end of the elastic support member 20 may be connected to the boarding base 10. Alternatively, the base 60 may be disconnected. The support shafts 16 are evenly arranged at three or more locations surrounding the center of the base 60 and the boarding base 10. The user U gets on the approximate center of the boarding board 10. 1 and 2, only two support shafts 16 are shown.

  The boarding platform 10 is provided with a grip portion (not shown) that the user U grips with his / her hand to maintain his / her posture. The total mass of the structures above the elastic support member 20 such as the grip portion and the boarding base 10 is referred to as the mass of the boarding base 10.

  The state of the running training apparatus 100 before the user U gets on the boarding board 10 is called an initial state. In an initial state, the elastic support member 20 is in a state of being slightly contracted under a load applied based on the weight of the boarding base 10. Hereinafter, the self-weight means a load corresponding to the product of mass and gravitational acceleration. The length of the elastic support member 20 is referred to as the initial length of the elastic support member 20. When the user U gets on the boarding base 10, the elastic support member 20 contracts from the initial length. When the user U gets on the boarding board 10, the boarding board 10 dampens in the vertical direction for a while, and then the boarding table 10 stops in a state where the elastic support member 20 is compressed to a predetermined balance length. This state is referred to as a balanced state of the running training apparatus 100. In other words, when the user U gets on the boarding board 10, the boarding board 10 oscillates damped around the height position of the boarding board 10 in the balanced state. The damping rate of the damped vibration is determined by the internal loss of the elastic support member 20, the frictional force between the support shaft 16 and the through hole 17 (hereinafter referred to as the internal loss of the running training device 100).

  The running training apparatus 100 includes an acceleration unit 50 that applies upward acceleration to the boarding platform 10. The acceleration unit 50 applies upward acceleration to the boarding base 10 when the boarding base 10 is below the center of swinging, in accordance with the swing period of the damped vibration of the boarding base 10. Thereby, the acceleration which imitates the reaction force when kicking up the road surface during the running operation is continuously applied to the lower limb of the user U while canceling the attenuation of the swing of the boarding platform 10.

  The acceleration unit 50 of this embodiment includes a motor 52, a clutch unit 54, and a cam 56. The motor 52 is fixed to the base 60. The motor 52 has a gear (not shown), and the output rotational speed of the motor 52 can be adjusted up and down by the operation of the operation unit by the user U.

  The clutch portion 54 is a mechanism that transmits the torque output of the motor 52 to the cam 56 at a timing selected as desired. Although the specific structure of the clutch part 54 is not specifically limited, In this embodiment, the clutch part 54 by the combination of the some bevel gear 55 (55a-55d) is illustrated. Specifically, the clutch portion 54 is composed of a pair of bevel gears 55a and 55b arranged facing each other with the tooth surfaces facing inward, and a bevel gear 55c meshing between the bevel gears 55a and 55b. . The bevel gear 55 a is provided at the tip of the motor shaft 53. The bevel gear 55 c moves up and down together with the boarding platform 10. The motor shaft 53 and the rotating shaft 58 of the bevel gear 55 b are parallel to the base 60. The rotating shaft 58 is supported by a bearing 59 in parallel with the upper surface of the base 60. The rotating shaft 55 d of the bevel gear 55 c is orthogonal to the base 60. The bevel gear 55c is provided at the lower end of the rotation shaft 55d with the tooth surface facing downward. The rotation shaft 55d can slide in the thickness direction with respect to the boarding base 10. An elastic member 55e that is compressible by pressing the bevel gear 55c upward toward the boarding base 10 is mounted between the boarding base 10 and the bevel gear 55c. The cam 56 is an eccentric member that is driven to rotate coaxially with the rotary shaft 58.

  FIG. 3B shows a state where the boarding base 10 is in the lowered state and the cam 56 is separated from the boarding base 10.

  The bevel gear 55c is separated from the bevel gears 55a and 55c when the boarding base 10 is in the raised state (see FIG. 1) above the swing center. The elastic member 55e extends along the rotation shaft 55d. When the bevel gear 55c is separated from the bevel gears 55a and 55c, the torque of the motor shaft 53 is not transmitted to the rotary shaft 58. FIG. 3A shows a state where the boarding base 10 is in the raised state and the cam 56 is separated from the boarding base 10. The direction of rotation of the cam 56 that is rotationally driven by the motor 52 (see FIG. 1) is indicated by an arrow. The cam 56 includes a top portion 57 having a longest radial distance from the rotation shaft 58. When the boarding board 10 is in the raised state, the cam 56 is stopped at the position shown in FIG. Specifically, the cam 56 is stopped in a state where the top portion 57 of the cam 56 is located slightly in front of the uppermost value in the rotational direction. This is called a standby state. The bearing 59 (see FIG. 1) and the rotary shaft 58 have an engaging portion (not shown) that engages with each other. When the bevel gear 55c is separated from the bevel gears 55a and 55c, the engaging portions engage with each other, so that the cam 56 stops in a standby state.

  The bevel gear 55c meshes with the bevel gears 55a and 55c in the lowered state (see FIG. 2) in which the boarding base 10 is below the swing center. At this time, the stretched elastic member 55e is gradually contracted, so that the striking force of the bevel gear 55c colliding against the bevel gears 55a and 55c is reduced. As the bevel gear 55c is engaged with the bevel gears 55a and 55c, the torque of the motor shaft 53 is transmitted to the rotary shaft 58. The cam 56 in the standby state (see FIG. 3A) is driven to rotate in the direction of the arrow. In the lowered state shown in FIG. 3B, the vertical distance between the boarding base 10 and the rotary shaft 58 is shorter than the radial distance between the top 57 of the cam 56 and the rotary shaft 58. For this reason, the top part 57 of the cam 56 pushes up the boarding board 10. Thereby, the acceleration part 50 provides upward acceleration to the boarding base 10, when the boarding base 10 rock | fluctuates vertically is below the rocking | fluctuation center.

  The acceleration which the acceleration part 50 provides to the boarding board 10 in the running training apparatus 100 of this embodiment is further demonstrated.

  FIG. 4 is a graph showing the height position and the upward acceleration of the boarding base 10 of the present embodiment. Specifically, the graph 1 </ b> A indicated by a two-dot chain line represents the height position of the boarding base 10 that attenuates and vibrates when the motor 52 is stopped and the acceleration unit 50 does not apply acceleration to the boarding base 10. The numerical value on the vertical axis indicates the normalized height position of the boarding platform 10. The height position of the boarding board 10 in the initial state is set to 1, and the height position of the boarding board 10 in the balanced state is set to 0. The horizontal axis indicates time. A graph 1B indicating a solid rectangular wave represents an upward acceleration applied to the boarding base 10 by the acceleration unit 50 of the present embodiment. A graph 1 </ b> C indicated by a solid line represents an upward combined acceleration applied to the boarding base 10 by the elastic support member 20 and the acceleration unit 50. In the graphs 1B and 1C, the upward acceleration applied to the boarding base 10 in a balanced state is set to zero. A graph 1D indicated by a broken line represents the height position of the boarding base 10 of the present embodiment when the acceleration unit 50 imparts upward acceleration to the boarding base 10. Each numerical value on the vertical axis of the graphs 1B to 1D is normalized.

  As graph 1A shows, when acceleration part 50 does not accelerate boarding board 10, boarding board 10 attenuates gradually with the height position (= 1) of the initial state as the highest point. On the other hand, as the graph 1D shows, the boarding base 10 of the present embodiment continues to swing with a predetermined amplitude without being attenuated. In the case of this embodiment, the amplitude is gradually increased in the first to third periods, and the amplitude is steady after the fourth period.

  The acceleration unit 50 according to the present embodiment imparts upward acceleration to the boarding base 10 when the boarding base 10 is in the lowered state. In other words, when the height position of the board 10 indicated by the graph 1D is lower than the balanced state (height position = 0), the acceleration unit 50 intermittently moves the board 10 as shown by the graph 1B. Accelerate upward. Thereby, as the graph 1C shows, the acceleration provided to the boarding base 10 becomes asymmetrical up and down centering on a balanced state.

  That is, in the running training apparatus 100 of the present embodiment, acceleration is performed during the period from the boarding base 10 passing through the lowest point to the center of swinging (balanced state) in the swinging period of the boarding base 10. The upward acceleration applied by the unit 50 to the boarding platform 10 is maximized. As a result, the peak acceleration at the moment when the running human kicks the road surface is simulated.

  The graph 1D periodically takes a minimum value. This corresponds to a state where the knee is depressed during the running operation and the road surface is in contact with the sole. At this time, the elastic support member 20 is in a compressed state from the initial length. The acceleration unit 50 applies upward acceleration to the boarding base 10 before and after the elastic support member 20 passes through the maximum compression state. This is a simulation of the motion from absorbing the reaction force from the road surface during the running motion and decelerating, and sinking the knee deepest and kicking the road surface with the kicking foot.

  The user U may stand on the boarding platform 10 with both feet and be stationary, or may step on the swinging cycle of the boarding platform 10. According to the running training device 100 of the present embodiment, even an elderly person or a rehabilitation patient who is difficult to run by himself / herself can load the lower limbs with an acceleration that simulates a running action. For this reason, it is possible to train muscle strength for running, which is difficult to apply a load in normal walking (walking) or muscle strength training.

  Various modifications are allowed for this embodiment. For example, in the above embodiment, as illustrated in FIG. 4, a state in which the swing amplitude of the boarding base 10 is amplified from height position = 1 to 1.5 is illustrated, but the present invention is not limited to this. The swing of the boarding base 10 may be continued with an amplitude (less than 1) smaller than the height position (= 1) in the initial state. Specifically, the running training apparatus 100 of the present embodiment may include an adjustment unit that increases or decreases the acceleration (see graph 1B in FIG. 4) that the acceleration unit 50 imparts to the boarding base 10. As an adjustment part, the gear mechanism which increases / decreases the torque output of the motor 52 in conjunction with operation of the operation part (not shown) by the user U can be illustrated, for example.

<Second embodiment>
5 and 6 are schematic front views showing the running training apparatus 100 according to the second embodiment of the present invention. FIG. 5 shows the rising state of the running training apparatus 100, and FIG. 6 shows the lowered state of the running training apparatus 100.

  The running training apparatus 100 according to the present embodiment includes a cycle adjusting unit that adjusts the swing cycle of the boarding base 10 in length. Thereby, the running pitch simulated by the running training apparatus 100 can be adjusted to high speed or low speed. Here, the oscillation period of the boarding base 10 can be changed by the mass of the user U and the boarding base 10 and the elastic coefficient (spring constant) of the elastic support member 20. The period adjusting unit is means for increasing or decreasing the mass of the boarding base 10 or the elastic coefficient of the elastic support member 20.

  As the period adjusting unit of the present embodiment, a stiffness adjusting unit 40 that increases or decreases the elastic coefficient of the elastic support member 20 is illustrated. FIG. 7 is an explanatory diagram of the rigidity adjusting unit 40.

  The elastic support member 20 of this embodiment includes a first elastic member 22 and a second elastic member 30. As in the first embodiment, the first elastic member 22 is a member that supports the board 10 downward and swings and changes between an elevated state and a lowered state. The second elastic member 30 is a member that elastically biases the boarding base 10 upward when the boarding base 10 that is supported by the first elastic member 22 and swings up and down is in a settling state lower than a predetermined height. It is. The sinking state is a partial state in which the boarding platform 10 is further positioned below the lowest point in the lowered state where the boarding base 10 is below the balanced state. The lowered state is a simulation of a cushioning operation that absorbs the repulsive force of the road surface by bending the knee in the running operation. The sinking state simulates the action of flexibly absorbing the repulsive force of the road surface by bending and stretching the ankle and kicking the road surface by the reaction. The running training apparatus 100 according to the present embodiment kicks the road surface with the kicking foot during the running operation in addition to the rhythmic jumping operation by increasing the elastic coefficient of the elastic support member 20 in the settling state as compared to before and after that. A load applied to the lower limbs when raising can be applied to the user U.

As shown in FIG. 7, the rigidity adjusting unit 40 of the present embodiment moves the stage 44 up and down with respect to the boarding base 10 by the dial unit 42. As a result, the vertical distance between the stage 44 and the base 60 (see FIG. 6) changes. The stage 44 moves up and down below the boarding board 10. The second elastic member 30 is provided between the stage 44 and the base 60. The first elastic member 22 is provided between the boarding base 10 and the base 60. When the distance between the stage 44 and the boarding base 10 is shortened by operating the dial portion 42, the second elastic member 30 is compressed by the stage 44 soon after the boarding base 10 changes from the rising state to the lowering state. For this reason, in the vicinity of the lowest point of the boarding base 10, the second elastic member 30 is greatly compressed, and the elastic coefficient of the elastic support member 20 including the first elastic member 22 and the second elastic member 30 is Increase. For this reason, the rocking | fluctuation period of the boarding base 10 becomes short.

On the contrary, when the distance between the stage 44 and the board 10 is increased by operating the dial portion 42, the second elastic member 30 is compressed by the stage 44 only after the board 10 is lowered to the vicinity of the lowest point. Thus, the compression length of the second elastic member 30 becomes smaller in the swing cycle of the boarding base 10. For this reason, the elastic coefficient seen in the whole elastic support member 20 which compounded the 1st elastic member 22 and the 2nd elastic member 30 reduces. For this reason, the rocking | fluctuation period of the boarding base 10 becomes long.

  In the running training device 100 of the present embodiment, the acceleration unit 50 imparts upward acceleration to the boarding base 10 when the boarding base 10 is in a lowered state below the swing center. And in common. Further, in the swinging cycle of the boarding base 10, the upward acceleration applied to the boarding base 10 by the acceleration unit 50 from the time when the boarding base 10 passes the lowest point to the balanced state is maximized. This is also common to the first embodiment.

  FIG. 8 is a graph showing the height position and upward acceleration of the boarding base 10 of this embodiment. The first elastic member 22 of the present embodiment and the elastic support member 20 of the first embodiment have the same spring constant, and the present embodiment further includes a second elastic member 30. The masses of the user U and the boarding base 10 are the same as those in the first embodiment. Graph 1D shown with a broken line corresponds to graph 1D of FIG. 4, and represents the height position of boarding board 10 in running training device 100 of the first embodiment. A graph 2 </ b> B indicating a solid-line rectangular wave represents an upward acceleration applied to the boarding base 10 by the acceleration unit 50 of the present embodiment. A graph 2D indicated by a solid line represents the height position of the boarding base 10 of the present embodiment. Each numerical value on the vertical axis of the graphs 2B and 2D is normalized.

  In the present embodiment, as in the first embodiment, the amplitude is gradually increased in the first to third cycles, and the fourth and subsequent cycles have a steady amplitude (see graph 2D). The acceleration unit 50 excites the swing of the boarding base 10 so that the steady amplitude is 1.5 times the initial height position (= 1).

  Comparing the graph 1D and the graph 2D in FIG. 8, the vibration period of the boarding base 10 of this embodiment is shorter than that of the first embodiment. This is because the elastic support member 20 includes the second elastic member 30 in addition to the first elastic member 22, so that the elastic coefficient of the elastic support member 20 is larger in the second embodiment than in the first embodiment. to cause.

  The running training apparatus 100 according to the present embodiment includes a stiffness adjusting unit 40 and can adjust the elastic coefficient (spring constant) of the elastic support member 20 by operating the dial unit 42. Thereby, the load and the rocking | fluctuation period which the boarding board 10 provides to the user U can be adjusted as desired. Therefore, it is possible to variably simulate the strength of the kick foot and the running pitch in the running operation.

  In the present embodiment, the rigidity adjusting unit 40 that increases or decreases the elastic coefficient of the elastic support member 20 is exemplified as the period adjusting unit. However, the present invention is not limited to this. For example, the period adjusting unit may be a weight that is detachably attached to the back surface of the boarding base 10. By adjusting the weight of the boarding base 10 to increase or decrease, even if the elastic coefficient of the elastic support member 20 is unchanged, the swinging period of the boarding base 10 can be adjusted to be long or short.

  In the present embodiment, the first elastic member 22 and the second elastic member 30 are illustrated as being coaxially mounted around the support shaft 16, but the present invention is not limited to this. The first elastic member 22 and the second elastic member 30 may be supported by different shafts or casings.

  As shown in the graph 1B in FIG. 4 and the graph 2B in FIG. 8, in the steady swing state after the fourth period, a slight acceleration that compensates for the internal loss of the running training apparatus 100 is transmitted from the acceleration unit 50 to the boarding platform. 10 may be given. Therefore, the torque output of the acceleration unit 50 (motor 52) may be gradually decreased from the initial torque during the period from the initial vibration to the steady swing state. Specifically, a position sensor such as a linear potentiometer for detecting the insertion depth of the support shaft 16 with respect to the through-hole 17 of the boarding base 10 is provided, and the gear mechanism of the motor 52 is operated based on the measured value. The torque output of 52 may be adjusted up or down. Alternatively, as the motor 52, a torque motor capable of adjusting the torque output based on the measured value of the position sensor may be used. Thereby, since the amplitude of the boarding platform 10 can be variably adjusted, a desired load set by the user U is applied to the lower limb of the user U.

<Third embodiment>
FIG. 9 is a schematic front view showing a running training apparatus 100 according to the third embodiment of the present invention. FIG. 10 is a functional block diagram of the running training apparatus 100 of the present embodiment.

  The running training apparatus 100 of this embodiment is different from the first and second embodiments in that it includes a latching mechanism 90 that locks the boarding base 10 at a height position at which the elastic support member 20 is in a natural state or an extended state. . Here, the natural state of the elastic support member 20 refers to a state of the elastic support member 20 in an initial state before the user U gets on the boarding base 10. In other words, the balanced state in which the elastic support member 20 is compressed and stationary by the dead weight load of the boarding base 10 is referred to as a natural state. The extended state of the elastic support member 20 refers to a state in which the elastic support member 20 is biased downward with respect to the boarding base 10, and in the case of this embodiment, the elastic support member 20 is extended from a natural state. Say. The latching mechanism 90 is a means for releasably fixing the facing distance between the boarding base 10 and the base 60. By providing the latching mechanism 90, the board 10 can be prevented from descending, and the user U can board the board 10 more safely. By releasing the lock of the latching mechanism 90 in a state where the user U has boarded the boarding board 10, the boarding board 10 starts to descend toward the balanced state of the running training device 100. Thereby, since the boarding base 10 can be rocked fully using the potential energy of the user U and the boarding base 10, the upward acceleration provided by the acceleration part 50 can be suppressed small.

  The latching mechanism 90 according to this embodiment includes a pair of electromagnets 92 and 94. The electromagnet 94 is fixedly attached to the boarding base 10. The electromagnet 92 is fixedly attached to the upper end of the support shaft 16. The lower surface of the electromagnet 94 and the upper surface of the electromagnet 92 are in contact with or close to each other at a height position at which the elastic support member 20 is in a natural state or an extended state. In this state, the electromagnets 92 and 94 are energized from a power supply unit (not shown) to generate electromagnetic forces that are attracted to each other, whereby the electromagnets 92 (support shafts 16) with respect to the electromagnets 94 (board 10). Prevent sliding. In other words, the attractive force between the electromagnets 92 and 94 is larger than the weight assumed as the user U.

  The acceleration unit 50 according to the present embodiment includes a control unit 110 and an air cylinder 70 that is driven and controlled by the control unit 110. The control unit 110 controls the extension cycle, the extension stroke, and the urging load of the air cylinder 70. That is, the running training apparatus 100 of the present embodiment includes a control unit 110 (adjustment unit) that adjusts the acceleration applied by the acceleration unit 50 to the board 10. The running training apparatus 100 includes a setting input unit 130 that accepts an operation input from the user U and sets an extension cycle and an extension stroke of the air cylinder 70. The setting input unit 130 is connected to the control unit 110 and the air cylinder 70.

  The running training apparatus 100 according to the present embodiment includes a control unit 110 and a load detection unit 112 that detects a downward load applied to the upper surface of the boarding base 10. The control unit 110 reduces the upward acceleration applied by the acceleration unit 50 based on the fact that the load detection unit 112 detects that the downward load applied to the upper surface of the boarding base 10 has become a predetermined threshold value or less. Let Thereby, when the user U jumps up on the boarding board 10, or when it becomes a state close | similar to this, the rocking | fluctuation of the boarding board 10 can be suppressed and the safety of the user U can be ensured rapidly. . In the present embodiment, to reduce the upward acceleration that the acceleration unit 50 imparts to the boarding base 10 is to reduce the acceleration to non-zero, to make the acceleration zero, and the acceleration unit 50 has the boarding base 10. And applying a downward acceleration to.

  Although the specific load detection part 112 is not specifically limited, The strain gauge connected to the control part 110 can be illustrated. By attaching the load detection unit 112 (strain gauge) to the front surface or the back surface of the boarding base 10, the user U can reduce the weight of the boarding base 10 due to the deflection generated in the boarding base 10 by the weight applied to the boarding base 10. In-plane distortion can be detected quantitatively.

  In addition to the control unit 110, the running training apparatus 100 according to the present embodiment includes a flexible connection string 120, a connector part 122 on which the connection string 120 is removably attached, and the connection string 120 is detached from the connector part 122. And a detection unit 124 that electrically detects that. The control unit 110 reduces the upward acceleration applied by the acceleration unit 50 based on the detection unit 124 detecting that the connecting string 120 is detached from the connector unit 122. Thereby, when the user U falls from the boarding board 10, or when the balance is lost more than predetermined on the boarding board 10, the shaking of the boarding base 10 is suppressed and the safety of the user U is promptly improved. Can be secured.

  As shown in FIG. 9, the user U attaches the holding tool 121 to clothes, shoes, or the like, and connects the holding tool 121 and the connector portion 122 with a slightly loosened connecting string 120. The detection unit 124 is energized to the connector unit 122, and is configured such that the circuit of the detection unit 124 or the connector unit 122 is turned on or off when the connecting string 120 is detached from the connector unit 122.

  The operation of the running training apparatus 100 will be described using the block diagram shown in FIG. The user U operates the setting input unit 130 to input setting information to the control unit 110. The setting information is information including at least one of the swing period or swing amplitude of the boarding platform 10.

  The load detection unit 112 provided on the boarding platform 10 transmits weight information indicating the weight of the user U to the control unit 110. The latching mechanism 90 receives a swing start signal from the control unit 110, interrupts energization of at least one of the electromagnets 92 and 94, and starts swinging the boarding platform 10. The control unit 110 of this embodiment has functions of an output adjustment unit 140 and a cycle adjustment unit 150. The output adjustment unit 140 extends the air cylinder 70 from the swing amplitude of the boarding platform 10 input from the setting input unit 130 and the weight of the user U determined based on the load detected by the load detection unit 112. Determine the stroke.

  The cycle adjusting unit 150 of the present embodiment adjusts the swing cycle of the boarding base 10 by adjusting the length of the elastic support member 20 before swinging so as to be extendable. The cycle adjusting unit 150 determines the drive amount of the stiffness adjusting unit 40 from the swing cycle input from the setting input unit 130 and the own weight of the user U determined based on the load detected by the load detecting unit 112. To do. The rigidity adjusting unit 40 of the present embodiment includes a stage 44 that moves in the vertical direction with respect to the base 60. The stage 44 supports the lower end of the elastic support member 20. The length of the elastic support member 20 is shortened by raising the stage 44 from the base 60. Thereby, even if the elastic coefficient (spring constant) of the elastic support member 20 is not changed, the swing period of the boarding base 10 and the elastic support member 20 can be shortened. The period adjustment unit 150 determines the amount of lifting of the stage 44 and drives the stage 44 to move up and down.

  The air cylinder 70 pushes up the boarding base 10 with the above-mentioned extension stroke at the timing before and after the half cycle elapses after the latching mechanism 90 is released and the boarding base 10 starts swinging. Gives upward acceleration. Thereafter, the air cylinder 70 pushes up the boarding base 10 with a predetermined extension stroke every cycle. As shown in the graph 1B of FIG. 4 and the graph 2B of FIG. 8, the extension stroke of the air cylinder 70 may be gradually decreased until the swing amplitude of the boarding base 10 becomes steady.

  The connector part 122 connected to the user U by the connecting string 120 (see FIG. 9) is connected to the detection part 124. When the detection unit 124 detects that the connecting string 120 is detached from the connector unit 122, the detection unit 124 transmits the detection signal to the output adjustment unit 140. The output adjustment unit 140 suppresses the output of the air cylinder 70 by reducing the extension stroke of the air cylinder 70 to zero or a small value.

  As described above, according to the running training apparatus 100 of the present embodiment, the acceleration that simulates the reaction force of the road surface when the running pitch and the running speed in the running operation are variably adjusted is transmitted from the boarding platform 10 to the user U. Can be granted. Further, regardless of whether the weight of the user U is heavy or light, the boarding platform 10 can be swung with a swing period and swing amplitude desired by the user U.

  In the present embodiment, the elastic support member 20 and the air cylinder 70 are illustrated as separate bodies, but the present invention is not limited to this. The elastic support member 20 may be provided inside the air cylinder 70. That is, the boarding base 10 may be supported by the air cylinder 70, and the boarding base 10 may be elastically swung up and down by the elastic support member 20 therein. Further, the elastic support member 20 may be pushed up by the high pressure chamber of the air cylinder 70 at a timing when the boarding base 10 is in the lowered state, and thereby an upward acceleration may be applied to the boarding base 10.

  The present invention is not limited to the above-described embodiment, and includes various modifications and improvements as long as the object of the present invention is achieved. For example, in the above-described embodiment, the boarding platform 10 is configured in a single stage and installed facing the base 60, but the present invention is not limited to this. An oscillating base is installed between the base 60 and the boarding base 10, the boarding base 10 and the base are elastically connected by the elastic support member 20, and the base 60 and the base are elastically lower. You may elastically connect with a support member. Then, the boarding base 10 and the swing base may be coupled to each other, and acceleration may be applied upward by the acceleration unit 50 with respect to the swing base. Accordingly, it is possible to give the user U an acceleration that preferably simulates the operation of causing the lower limb to sink into the road surface during the running operation and kicking the road surface up with the sole to extend the body.

  In the said embodiment, although the user U boarded the boarding board 10 in the standing position, this invention is not limited to this. A stool such as a chair may be installed on the boarding board 10 and boarded on the boarding board 10 in a sitting position. Furthermore, not only a mode in which the user U loads the entire weight on the boarding platform 10 but also a mode in which only a part of the mass of the user U is placed on the boarding platform 10 and swings up and down may be used. For example, the user U who is supine on the floor may use only the legs on the board 10.

The above embodiment includes the following technical idea.
(1) A boarding board on which a user boards, an elastic support member that supports the boarding board so that the boarding board can swing up and down, and elastically urges the boarding board upward, and a swinging cycle of the boarding board. An accelerating portion that periodically applies acceleration to the boarding base, and the accelerating unit applies an upward acceleration to the boarding base when the boarding base that swings up and down is below the center of swinging. A running training device characterized by giving.
(2) The upward acceleration which the acceleration part gives to the boarding board becomes the maximum during the rocking period between the boarding board passing the lowest point and the center of rocking. The running training apparatus according to (1) above, wherein
(3) The running training device according to (1) or (2), wherein the acceleration unit applies an upward acceleration to the boarding base before and after the elastic support member passes through a maximum compression state.
(4) The running training apparatus according to any one of (1) to (3), including an adjustment unit that increases or decreases the acceleration applied by the acceleration unit to the boarding board.
(5) The running training device according to any one of (1) to (4), including a cycle adjustment unit that adjusts the oscillation cycle length.
(6) The elastic support member includes a first elastic member and a second elastic member, and the boarding table supported by the first elastic member and swinging up and down is in a settling state lower than a predetermined height. Any one of the above (1) to (5), wherein the second elastic member elastically biases the boarding base upward to increase the elastic coefficient of the elastic support member in the settling state. The running training apparatus according to one item.
(7) The running training apparatus according to any one of (1) to (6), further including a rigidity adjustment unit that increases or decreases an elastic coefficient of the elastic support member.
(8) The running training device according to any one of (1) to (7), further including a latching mechanism that locks the boarding board at a height position at which the elastic support member is in a natural state or an extended state.
(9) A load detection unit that detects a downward load applied to the upper surface of the boarding base, and the acceleration based on the detection by the load detection unit that the downward load has become a predetermined threshold value or less. A running training device according to any one of (1) to (8), further comprising: a control unit that reduces upward acceleration applied by the unit.
(10) A flexible connecting string, a connector part for attaching the connecting string so that the connecting string can be pulled out, a detection part for electrically detecting that the connecting string is detached from the connector part, and the connecting string being the connector part And a control unit that reduces upward acceleration applied by the acceleration unit based on the detection by the detection unit of being out of range. Training device.

10: Boarding board, 16: Support shaft, 17: Through hole, 20: Elastic support member, 22: First elastic member, 30: Second elastic member, 40: Rigidity adjustment part, 42: Dial part, 44: Stage, 50: Acceleration section, 52: Motor, 53: Motor shaft, 54: Clutch section, 55, 55a to 55c: Bevel gear, 55d, 58: Rotating shaft, 55e: Elastic member, 56: Cam, 57: Top section, 59: Bearing: 60: Base, 70: Air cylinder, 90: Latching mechanism, 92, 94: Electromagnet, 100: Running training device, 110: Control unit, 112: Load detection unit, 120: Connection string, 121: Holder 122: connector unit, 124: detection unit, 130: setting input unit, 140: output adjustment unit, 150: period adjustment unit, U: user

Claims (8)

A base, a board on which a user boards, an elastic support member that supports the board so that it can swing up and down with respect to the base, and elastically biases the board, upward, and the board An acceleration unit that periodically applies acceleration to the boarding base in accordance with the rocking cycle of the base,
The acceleration unit gives an upward acceleration to the boarding base when the boarding base swinging up and down is below the center of swinging ,
The elastic support member includes a first elastic member and a second elastic member, the first elastic member is provided between the boarding base and the base, and an upper surface of the second elastic member and the base The vertical spacing of can be variably adjusted,
The second elastic member is compressed and elastically urges the boarding base when the boarding board that is supported by the first elastic member and swings up and down is in a settling state lower than a predetermined height. As a result, the elastic coefficient of the elastic support member in the settling state increases, and the predetermined height applied to the settling state and the swing period of the boarding platform change by variably adjusting the vertical distance. A running training device.   The upward acceleration applied to the board by the accelerating unit is maximized between the swing period and the board from the lowest point to the center of swing. The running training apparatus according to claim 1.   The running training device according to claim 1 or 2, wherein the acceleration unit applies an upward acceleration to the boarding board before and after the elastic support member passes through a maximum compression state.   The running training apparatus according to any one of claims 1 to 3, further comprising an adjustment unit that increases or decreases the acceleration applied to the boarding board by the acceleration unit.   The running training device according to any one of claims 1 to 4, further comprising a cycle adjustment unit that adjusts the oscillation cycle length. The running training apparatus according to any one of claims 1 to 5 , further comprising a latching mechanism that locks the boarding board at a height position at which the elastic support member is in a natural state or an extended state. A load detection unit that detects a downward load applied to the upper surface of the boarding platform, and the acceleration unit is provided based on the detection of the load detection unit that the downward load has become a predetermined threshold value or less. The running training apparatus according to any one of claims 1 to 6 , further comprising a control unit that reduces upward acceleration. A flexible connecting string, a connector part for detachably attaching the connecting string, a detection part for electrically detecting that the connecting string has been detached from the connector part, and the connecting string removed from the connector part The running training apparatus according to any one of claims 1 to 7 , further comprising a control unit that reduces upward acceleration applied by the acceleration unit based on the fact that the detection unit has detected the fact.

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