JP2019098051A - Lower extremity training device - Google Patents

Abstract

To provide a device which can achieve bottom dorsal flexion exercise of a lower extremity (leg) simultaneously, which can be produced at low cost, safety and which is light weight.SOLUTION: The invention is configured so that (a) shows a reference state in which a foot 1 is mounted on a foot mount part 30, a user mounts a heel of his/her foot 1 on the surrounding of a two-axis spring hinge type connection part 40, in the state, an antagonism state is maintained unless a user flexes the muscles of his/her foot; (b) indicates a state in which, when a user indicating a plantar flexion state performs planar flexion exercise with a heel as a fulcrum, a spring shaft on a front side of the two-axis spring hinge type connection part 40 is opened, the foot mount part 30 moves in the plantar flexion direction (lower direction); (c) indicates a dorsal flexion state, in which, when a user performs dorsal flexion exercise with a heel as a fulcrum, a spring shaft on a rear side of the two-axis spring hinge type connection part 40 is opened, and the foot mount part 30 moves in a dorsal flexion direction (upper direction).SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a lower limb training apparatus, and more particularly to a lower limb training apparatus that performs a plantar flexion exercise of the lower limb.

  Various techniques have been proposed to support rehabilitation for patients with impaired mobility in the lower limbs (see, for example, Patent Document 1).

  According to the technique disclosed in Patent Document 1, while maintaining the lower leg with respect to ankle stretch, the joint of the ankle joint is moved passively to perform joint range of motion training of the ankle joint and a muscle stretching exercise around the ankle Describes the function of doing

JP, 2017-169684, A

  In rehabilitation, training is applied that places a load on the stepping action (ie, plantarflexion). The plantar flexion training can be performed relatively easily, for example, by using a toe standing exercise without particularly using an instrument or the like. However, it may be difficult for patients with paralysis of the lower extremities, as it is necessary to support their entire weight on their toes. In addition, in order to train all the tibial muscles of the lower limbs necessary for walking, it is effective to have a training for raising the foot (dorsal flexion), and a technique for supporting such training has been required.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide both low cost, safe, and lightweight devices that can support both the plantar flexion exercises of the lower extremities. .

The leg training apparatus according to the present invention is pivotally connected to a base to be placed on a floor or a predetermined device, the footrest being connected to the pedestal, the footrest to rest the user's sole, the pedestal and the footrest In rotation of the connecting portion, the pedestal and the footrest, the footrest is movable from the reference position in the plantarflexion direction and the dorsiflexion direction, and the footrest is away from the reference position. And a resistance unit for acting resistance when moving to
Further, the connection portion and the resistance portion may be a two-axis spring hinge mechanism in which they are integrally configured.
The connection portion and the resistance portion may be a leaf spring or a coil spring in which they are integrally configured.
It may have a sensor which detects a motion of the footrest part, and a control part which displays a detection result by the sensor.
The control unit may have a game function of changing an image to be displayed according to the movement of the sensor.
The footrests may be provided for the right foot and the left foot, respectively.

  According to the present invention, it is possible to provide a lower limb training apparatus 10 capable of supporting both of the plantarflexion exercises of the lower limbs (foot) and realizing them at low cost, safety, and light weight.

It is a figure showing a leg training device concerning this embodiment. It is the figure which paid its attention to the plantarflexion exercise | movement of the foot mounted on the footrest part based on this embodiment. It is the figure which paid its attention to the position adjustment function before and behind a leg training device concerning this embodiment. It is a figure showing a leg training device which has a game function concerning this embodiment. It is a figure showing a leg training device concerning a modification of this embodiment.

  Next, modes for carrying out the present invention (hereinafter, simply referred to as “embodiments”) will be specifically described with reference to the drawings.

  FIG. 1 is a figure which shows the leg training apparatus 10 based on this embodiment, Comprising: FIG. 1 (a) is a side view, FIG.1 (b) is a top view.

  The leg training apparatus 10 has a function to simultaneously realize the bottom and back flexion motion of the lower leg (foot 1), and as a configuration to realize the function, the pedestal 20, the two footrests 30, and a biaxial spring hinge type connection And a unit 40. These components have a structure and strength in consideration of putting the foot 1 on. Here, the leg training apparatus 10 of the two-foot type is illustrated. In the case of using one foot, the footrest 30 may be configured as a single leg training device 10.

  The pedestal 20 includes a plate-like base portion 21 disposed on a floor or a predetermined device, and a pedestal main body 22 having a predetermined height attached to the base portion 21. The height of the pedestal body 22 may be set and adjustable so that the toe does not contact the floor or the like when the foot 1 is flexed.

  At the front of the upper surface 22 a of the pedestal main body 22, two footrests 30 are rotatably mounted via respective biaxial spring hinge type connectors 40. Each footrest 30 is in the form of a plate on which one foot can be placed, and further, a fixing band 31 for fixing the placed foot is provided.

  The biaxial spring hinge type connection portion 40 is a so-called spring free hinge, and can be pivoted up and down from an antagonistic state (here, a horizontal reference state). That is, the footrest 30 attached to the pedestal main body 22 is pivotable in both the plantar flexion direction (downward direction) and the dorsiflexion direction (upward direction) from the horizontal reference position, and pivots (that is, bottom and back) When it leaves from the reference position by bending, an action to return to the reference position works.

  FIG. 2 is a diagram focusing on the bottom-flexor exercise of the foot 1 placed on the foot placement unit 30. The movement of the biaxial spring hinge type connection portion 40 is schematically shown inside the blowout in the drawing.

  FIG. 2A shows a reference state in which the foot 1 is placed on the footrest 30. FIG. The user places the heel portion of the foot 1 around the biaxial spring hinge type connection portion 40. In this state, the elastic force of the two spring shafts maintains the antagonistic state unless a force is applied to the foot 1.

  FIG. 2 (b) shows the underflexion state. When the user performs a plantar bending operation to lower the toe against the elastic force (that is, the spring reaction force) with the heel as a fulcrum, the spring shaft portion on the front side of the biaxial spring hinge type connecting portion 40 is opened, and the footrest 30 is bent. Move in the direction (downward).

  FIG. 2 (c) shows a dorsiflexion state. When the user performs a dorsiflexion operation to raise the toe against the elastic force (spring reaction force) with the heel as a fulcrum, the spring shaft portion of the rear side of the biaxial spring hinge type connecting part 40 is opened, and the footrest 30 is dorsiflexed Move in the direction (upward).

  In addition, by using a spring free hinge whose spring reaction force can be adjusted at each spring shaft portion as the biaxial spring hinge type connection portion 40, it is possible to adjust each spring reaction force in the plantar flexion direction and the dorsal flexion direction. , Can adjust the user's rehabilitation strength.

  FIG. 3 is a diagram focusing on the front and back position adjustment function of the lower extremity training device 10. Depending on the setting place and the installation mode (for example, fixed installation) of the lower limbs training apparatus 10, the installation position of the lower limbs training apparatus 10 may not be directly moved and adjusted. In order to make the use posture of the user appropriate, from the reference position to the position of the pedestal main body 22 of FIG. 3 (a) to the forward position of FIG. 3 (b) or the retracted position of FIG. 3 (c) Position adjustment is possible at the stage. As a position adjustment function, a configuration in which two rails provided in the base portion 21 are moved back and forth, and a plurality of holes are provided in the base portion 21 and a convex portion fitted in the hole is provided in the bottom portion of the pedestal main body 22 There is a configuration etc.

  Thus, the lower limb training apparatus 10 can realize a mechanism corresponding to the dorsiflexion movement of the foot 1 (lower limbs) with a simple structure, particularly in the two-axis spring hinge type connection part 40, so low cost, safety and light weight Can be realized as

  Further, as described above, by adjusting the elastic force (spring reaction force) of the two-axis spring hinge type connection portion 40, the user's rehabilitation strength can be appropriately set. In addition, since the pedestal body 22 can be adjusted to move back and forth, an appropriate rehabilitation posture can be obtained.

Then, the composition which expanded the function of leg training device 10 is explained.
FIG. 4 shows a lower extremity training device 10a having a display and game function. The lower limbs training apparatus 10a includes a sensor 35 attached to the footrest 30 (here, the bottom surface) of the above-described configuration, and a training control unit 50 that acquires the output of the sensor 35 and outputs the detection result to the display unit 60. .

  The sensor 35 is, for example, a motion vector sensor, and detects motion of the footrest 30 in the front-rear direction, the left-right direction, and the up-down direction, and outputs the motion to the training control unit 50. Data communication from the sensor 35 to the training control unit 50 may use wireless LAN, Bluetooth (registered trademark) communication, or the like.

  The training control unit 50 causes the display unit 60 to display and output the detection result of the sensor 35. As a detection result to be displayed, there are the number and speed of the dorsiflexion exercise (the number of one minute) and the like. The training control unit 50 also has a game function as one of such display output functions.

  In the example of the game of FIG. 5, the user moves the own icon 61 displayed on the display unit 60 up and down by the footrest unit 30, that is, moves up and down with the flexorum movement to avoid the obstacle 62 icon And get an energy icon 63 etc. on the way. By adding such a game function, it is expected that the user of the lower limbs training apparatus 10a can maintain the motivation for training and actively tackle rehabilitation.

  In addition, from the viewpoint of detection of plantarflexion movement, the sensor 35 only needs to be able to detect vertical movement, but, for example, when the lower limbs training apparatus 10 is provided in a wheelchair or the like, using a motion vector sensor It is possible to realize a game function that also reflects the movement of the installation device (the movement and rotation of the front and rear, left and right).

  The present invention has been described above based on the embodiments. This embodiment is an exemplification, and it is understood by those skilled in the art that various modifications can be made to the combination of the respective constituent elements, and such modifications are also within the scope of the present invention.

  FIG. 5 is a view showing a one-leg type lower limb training apparatus 100 according to a modification, in which FIG. 5 (a) is a side view and FIG. 5 (b) is a plan view. The leg training apparatus 100 uses a leaf spring connecting portion 140 instead of the two-axis spring hinge type connecting portion 40. Specifically, the lower extremity training device 100 is provided with a vertical plate 123 extending upward at the rear end of the base portion 121. A pedestal body 122 extending forward is provided near the upper end of the vertical plate 123, and a footrest 130 is attached thereto via a leaf spring connecting portion 140.

  Although adjustment of the elastic force can not be performed, it can be realized with a simpler configuration. For example, in a rehabilitation facility or the like, depending on the user, it is possible to select and use the leg training device 10 of the leaf spring coupling portion 140 with an appropriate elastic force. A coil spring (torsion spring) may be used instead of the leaf spring connection portion 140.

  Also, as a connecting member of the footrest 30 and the base 20, a torque hinge that exerts a constant torque (resistance) on rotation is used instead of the two-axis spring hinge type connecting portion 40, and a potentiometer is used as a sensor 35 at its shaft , And may be configured to detect a plantarflexion movement.

  Moreover, although the biaxial spring hinge type | mold connection part 40 which provided integrally the connection function of the footrest part 30 and the base 20, and the resistance function in bottom dorsiflexion movement was used, even if these functions are implement | achieved by a different structure Good. For example, there is a simple hinge structure rotatably connected, and a structure in which a spring (resistance function) is disposed between the bottom of the footrest 30 and the base 21. Further, instead of the spring, a structure in which the foot placing portion 30 is in an antagonistic state in the reference state may be adopted by using a plurality of artificial muscle tubes.

1 leg (leg)
10, 10a Leg training apparatus 20 pedestal 21, 121 base portion 22, 122 pedestal main body 22a upper surface 30, 130 foot placing portion 31 fixing band 35 sensor 40 2-axis spring hinge type connecting portion (connecting portion, resistance portion)
50 training control unit (control unit)
60 Display 61 Local icon 62 Obstacle 63 Energy icon 123 Vertical plate 140 Flat spring connection

Claims (6)

A pedestal to be placed on the floor or a predetermined device;
A foot rest connected to the pedestal and on which the user's sole is placed;
A connecting portion rotatably connecting the pedestal and the footrest;
In rotation of the pedestal and the footrest, the footrest is movable from the reference position in the plantarflexion direction and the dorsiflexion direction, and the footrest moves in the direction away from the reference position. , And a resistance unit that acts a resistance
A leg training apparatus comprising:   The lower leg training apparatus according to claim 1, wherein the connection portion and the resistance portion are a two-axis spring hinge mechanism in which they are integrally configured.   The lower leg training device according to claim 1, wherein the connection portion and the resistance portion are a leaf spring or a coil spring in which they are integrally configured. A sensor that detects the movement of the footrest;
A control unit that displays a detection result by the sensor;
The leg training apparatus according to any one of claims 1 to 3, comprising:   The lower limb training apparatus according to claim 4, wherein the control unit has a game function of changing an image to be displayed according to the movement of the sensor.   The apparatus for training a lower extremity according to any one of claims 1 to 5, wherein the footrests are provided for the right foot and the left foot, respectively.

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