JP2020062084A - Training device - Google Patents

Abstract

To provide a training device capable of continuously varying a load during exercise of a user and being used for flexible training.SOLUTION: A training device 10 includes a fluid pressure actuator 200 having a cylindrical tube which expands and contracts by the fluid pressure, a first attachment part connected with one longitudinal end of the fluid pressure actuator 200, and a second attachment part connected with another longitudinal end of the fluid pressure actuator 200. At least the first attachment part is attached to the body of a user 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a training device.

  BACKGROUND ART Conventionally, a muscle strength training device is known that includes a rod-shaped main body portion that expands and contracts in the longitudinal direction, a spring portion that urges the main body portion in the expansion and contraction direction, and grips provided at both ends of the main body portion (Patent Document 1). Reference 1).

  The user can perform strength training of the upper body by grasping the grip and pressing the main body so as to contract the same. Such a training device is compact and lightweight as compared with a training device using weights.

Japanese Patent Laid-Open No. 2001-000579

  However, in the training device described above, the load is substantially constant from the start to the end of contraction of the main body.

  Therefore, in such a conventional training apparatus, it is difficult to continuously change the load during the exercise of the user, that is, during the operation of the training apparatus.

  Further, the above-described conventional training device is dedicated to muscle strength training and cannot be used for flexibility training (stretching).

  Therefore, the present invention has been made in view of such a situation, and provides a compact training device that can continuously change the load during exercise of the user and can also be used for flexibility training. With the goal.

  One aspect of the present invention is a training apparatus, which includes a fluid pressure actuator having a cylindrical tube that expands and contracts according to the pressure of a fluid, and a first mounting portion connected to one longitudinal end of the fluid pressure actuator. And a second mounting portion connected to the other longitudinal end of the fluid pressure actuator, and at least the first mounting portion is mounted on the user's body.

  According to the training device described above, the load can be continuously changed during the exercise of the user, and the training device can be used for flexibility training. It is even more compact.

FIG. 1 is a diagram illustrating an example of training using the training device 10. FIG. 2 is a side view of the fluid pressure actuator 200. FIG. 3 is a functional block configuration diagram of the training device 10. FIG. 4 is an operation flowchart of the training device 10. FIG. 5 is a diagram showing a pattern example of the force (N) generated by the fluid pressure actuator 200. FIG. 6 is a graph showing the force (N) generated by the fluid pressure actuator 200 according to the displacement amount. FIG. 7: is a figure which shows an example of the training using the training apparatus 10A which concerns on the example of a change.

  Hereinafter, embodiments will be described with reference to the drawings. Note that the same functions and configurations are given the same or similar reference numerals, and description thereof will be omitted as appropriate.

(1) Overall Schematic Configuration of Training Apparatus FIG. 1 shows an example of training using the training apparatus 10 according to the present embodiment. As shown in FIG. 1, the training device 10 is worn by a user 20.

  The training apparatus 10 uses a fluid pressure actuator 200 that expands and contracts according to the pressure of the fluid. Further, the training device 10 includes a mounting portion 110 mounted on the chest of the user 20 and a mounting portion 120 mounted on the foot of the user 20.

  In the training example shown in FIG. 1, one end in the longitudinal direction of the fluid pressure actuator 200 is connected to the mounting portion 110 mounted on the chest of the user 20 in a state where the upper body is raised and seated, and the longitudinal direction of the fluid pressure actuator 200. The other end of is connected to the mounting portion 120 mounted on the foot of the user 20.

  A controller 300 that controls the amount and timing of the fluid sent to the fluid pressure actuator 200 is connected to the fluid pressure actuator 200.

  In the training example shown in FIG. 1, the training apparatus 10 can assist the user 20 in the forward bending stretch by contracting the fluid pressure actuator 200. Alternatively, user 20 may train the back muscles by resisting contraction and pulling of hydraulic actuator 200.

(2) Configuration of Fluid Pressure Actuator FIG. 2 is a side view of the fluid pressure actuator 200 according to the present embodiment. As shown in FIG. 2, the fluid pressure actuator 200 includes an actuator body 210, a connecting portion 221, and a connecting portion 222.

  The actuator body 210 includes a tube 211 and a sleeve 212. As will be described later, the actuator main body 210 can be made of rubber, organic fiber, or the like, and therefore is extremely lightweight (about 100 g) and compact.

  A fluid flows into the actuator body 210 through the fitting 230 and the passage hole 240. A connecting portion 221 and a connecting portion 222 are provided at both ends of the fluid pressure actuator 200, specifically, at end portions in the longitudinal direction of the fluid pressure actuator 200.

The actuator body 210, by inflow of fluid into the tube 211, shrunk in the axial direction _{D AX} of the actuator body portion 210 expands in the radial direction _{D R.} Further, the actuator body portion 210, the outflow of the fluid from the tube 211, expanded in the axial direction _{D AX} of the actuator body portion 210, to shrink in the radial direction _{D R.}

  The fluid pressure actuator 200 exerts a function as an actuator by such a shape change of the actuator body 210. The fluid pressure actuator 200 is a so-called McKibben type.

  The fluid used to drive the fluid pressure actuator 200 may be a gas such as air or a liquid such as water or mineral oil, but considering that it is used in the training device 10, a hydraulic drive that exerts a large contraction force. Not required. Therefore, in the present embodiment, as described above, it is preferable to use air as the fluid used to drive the fluid pressure actuator 200. That is, the fluid flowing into the fluid pressure actuator 200 is air.

  The fitting 230 projects so that a driving pressure source of the fluid pressure actuator 200, specifically, a hose 180 (see FIG. 3) connected to a control valve 310 (not shown in FIG. 2, see FIG. 3) can be attached. ing.

  The fluid flowing in through the fitting 230 passes through the passage hole 240 and flows into the inside of the actuator body 210, specifically, the inside of the tube 211.

  The tube 211 is a cylindrical body that expands and contracts due to the pressure of fluid. The tube 211 is made of an elastic material such as butyl rubber because it repeatedly contracts and expands with a fluid. That is, the tube 211 is preferably made of a predetermined rubber material.

  When hydraulically driving the fluid pressure actuator 200, it should be at least one selected from the group consisting of NBR (nitrile rubber) having high oil resistance, hydrogenated NBR, chloroprene rubber, and epichlorohydrin rubber. Is preferred.

  The sleeve 212 has a cylindrical shape and covers the outer peripheral surface of the tube 211. The sleeve 212 is a restraint member made of fibers that restrains the expansion and deformation of the tube 211 by a predetermined amount or more.

  Specifically, the sleeve 212 is a stretchable structure in which cords oriented in a predetermined direction are knitted, and the rhombus shape is repeated by intersecting the oriented cords. By having such a shape, the sleeve 212 is pantograph-deformed, and follows the tube 211 while restricting the contraction and expansion of the tube 211.

  As the cord forming the sleeve 212, it is preferable to use a fiber cord of aromatic polyamide (aramid fiber) or polyethylene terephthalate (PET). However, the fiber cord is not limited to this kind of fiber cord, and may be a high-strength fiber such as PBO fiber (polyparaphenylenebenzobisoxazole) or a metal cord composed of an ultrafine filament.

  The details of the fluid pressure actuator 200 may be the same as, for example, the configuration described in International Publication No. 2017/010304.

(3) Functional Block Configuration of Training Apparatus FIG. 3 is a functional block configuration diagram of the training apparatus 10. In FIG. 3, the mounting unit 110, the mounting unit 120, the fluid pressure actuator 200, and the controller 300, which are the components of the training apparatus 10, are schematically illustrated.

  The mounting part 110 is connected to one end of the fluid pressure actuator 200 in the longitudinal direction. Specifically, the mounting portion 110 is connected to the connecting portion 221 of the fluid pressure actuator 200. In the present embodiment, the mounting part 110 constitutes a first mounting part.

  The mounting unit 110 is mounted on the chest of the user 20 (see FIG. 1), that is, the body of the user 20. The mounting portion 110 includes a pair of shoulder belts and a chest belt connecting the pair of shoulder belts. The pair of shoulder belts are connected on the back side.

  In addition, it is preferable that the portion of the mounting portion 110 connected to the fluid pressure actuator 200 has a structure that facilitates attachment / detachment to / from the fluid pressure actuator 200.

  In the present embodiment, the mounting unit 120 is mounted on the foot of the user 20, that is, the body of the user. The mounting portion 120 is connected to the other longitudinal end portion of the fluid pressure actuator. Specifically, the mounting portion 120 is connected to the connecting portion 222 of the fluid pressure actuator 200. In the present embodiment, the mounting section 120 constitutes a second mounting section.

  The mounting portion 120 is configured by a loop-shaped belt that can lock both legs of the user 20.

  The mounting portion 110 and the mounting portion 120 may be made of any material and have any specific shape as long as they can withstand the load of the user 20 due to stretching or strength training.

  The controller 300 includes a control valve 310, a control unit 320, an air compressor 330, and a pressure tank 340. The controller 300 controls the fluid pressure actuator 200. The controller 300 includes an input device (such as a button or a touch panel) that allows the user 20 to select the load (strength), time, or number of times of stretching or strength training.

  The control valve 310 is connected to the pressure tank 340. The air compressor 330 is connected to the pressure tank 340. The air compressor 330 supplies air to the pressure tank 340. The pressure tank 340 maintains the air sent by the air compressor 330 at a predetermined pressure.

  The air compressor 330 supplies air to the pressure tank 340 when the pressure in the pressure tank 340 drops below a predetermined value due to the operation of the fluid pressure actuator 200.

  The control valve 310 is connected to the fitting 230 of the fluid pressure actuator 200 via the hose 180. Compressed air is sent to the fluid pressure actuator 200 via the control valve 310.

  The controller 300 includes, as hardware elements, a processor, a memory, an input device, an external interface, and the like. The function provided by the controller 300 is realized by executing a computer program (software) using the hardware element. It should be noted that some or all of the functions provided by the controller 300 may be realized by a digital signal processor (DSP) or an Application Specific Integrated Circuit (ASIC).

  The controller 300 controls the fluid pressure actuator 200 via the control valve 310. Specifically, the controller 300 controls the amount and timing of air sent from the control valve 310 to the fluid pressure actuator 200. Similarly, the controller 300 controls the amount and timing of air emitted from the fluid pressure actuator 200.

  More specifically, the controller 300 can change the amount of fluid flowing into the fluid pressure actuator 200 during exercise of the user.

That is, the fluid pressure actuator 200 is interposed between two points of the body of the user 20, and the user 20 is contracted by the fluid pressure actuator 200 in the longitudinal direction (similar to the axial direction D _{AX of} FIG. 2). Assists the forward bending of the body. Alternatively, the back muscle group can be trained by operating so as to resist the contracting force of the fluid pressure actuator 200.

(4) Operation of Training Apparatus Next, the operation of the training apparatus 10 will be described. Specifically, an operation example of muscle strength training by the training device 10 will be described.

  FIG. 4 is an operation flowchart of the training device 10. As shown in FIG. 4, the training device 10 acquires a load setting value for muscle strength training (S10). The load set value may be only the load (weight) or a combination of the load and the number of times.

  In the case of flexibility training (stretching), the length by which the fluid pressure actuator 200 contracts (that is, the depth of forward bending of the upper body) and the speed of contraction can be set.

  The training apparatus 10 controls the amount of air flowing into the fluid pressure actuator 200 based on the acquired load setting value, so that the fluid pressure actuator 200 contracts with a force (N) corresponding to the load setting value.

  The force (N) according to the load setting value may be constant during the training time, but it is preferable that it changes according to a predetermined pattern in consideration of the training effect.

  Here, FIG. 5 shows a pattern example of the force (N) generated by the fluid pressure actuator 200. In the pattern shown in FIG. 5, the force (N) generated by the fluid pressure actuator 200 changes periodically.

  The user 20 holds the upper body with the upper body raised during training. Such strength training is a type of isometrics.

(5) Operation / Effect According to the above-described embodiment, the following operation / effect can be obtained. Specifically, the mounting portion 110 and the mounting portion 120 are connected to the fluid pressure actuator 200, and the mounting portion 110 is mounted on the chest of the user 20 and the mounting portion 120 is mounted on the foot of the user 20, respectively.

  The fluid pressure actuator 200 can continuously change the load during the exercise of the user 20 by controlling the amount and timing of the fluid (air) to be fed. Further, since the training device 10 can shorten the distance between the mounting portion 110 and the mounting portion 120 by the contracting force of the fluid pressure actuator 200, the training device 10 can also be used for training (stretching) the flexibility of the user 20.

  Further, the fluid pressure actuator 200 has a simple structure including the tube 211 and the sleeve 212, and is compact and lightweight.

  That is, according to the present embodiment, it is possible to provide a compact training device 10 that can continuously change the load during exercise of the user 20 and can also be used for flexible training.

  Although the conventional training device utilizing the reaction force of the biased spring as described in Patent Document 1 described above is compact, once the user 20 starts the muscle training, the exercise of the user 20 is started. Medium, that is, it is difficult to continuously change the load (weight) during the operation of the training apparatus, and the load is substantially constant from the start to the end of the pressing operation.

FIG. 6 is a graph showing the force (N) generated by the fluid pressure actuator 200 according to the displacement amount. As shown in FIG. 6, the fluid pressure actuator 200 generates a large force in the initial stage of displacement in which the displacement amount (contraction) along the axial direction D _AX (see FIG. 2) is small, but the displacement amount is not less than a certain value. Then, it has a non-linear characteristic that the force in the axial direction D _AX becomes weak.

  Since the muscle force of human muscles that can be exerted changes depending on the length (contraction amount), it is preferable to change the load according to the contraction amount of the muscles of the user 20. According to the training device 10, the load can be changed according to the amount of muscle contraction.

  As described above, by continuously changing the load during the operation of the training apparatus 10, more effective and safe muscle strength training that does not impose an excessive burden on the muscle strength can be realized.

  In the present embodiment, the mounting unit 120 is mounted on the body of the user 20. That is, both the mounting unit 110 and the mounting unit 120 are mounted on the body of the user 20. Thereby, in particular, the user 20 alone can realize effective training of flexibility.

  In the present embodiment, the controller 300 can change the amount of fluid flowing into the fluid pressure actuator 200 during the exercise of the user 20. Therefore, it is possible to continuously generate an appropriate load according to the amount of muscle contraction. Thereby, more effective and safe strength training can be realized.

  In this embodiment, the fluid flowing into the fluid pressure actuator 200 is air. Since the fluid pressure actuator 200 behaves like a spring by using air, it is possible to avoid a sudden force being applied to the body of the user 20. As a result, safer muscle strength training can be realized.

(6) Other Embodiments The contents of the present invention have been described above with reference to the examples, but the present invention is not limited to these descriptions, and various modifications and improvements are possible. It is obvious to the trader.

  For example, in the above-described embodiment, both the mounting unit 110 and the mounting unit 120 are mounted on the body of the user 20, but either one may be mounted on a body other than the body of the user 20.

  FIG. 7 shows an example of training using the training apparatus 10A according to the modification. As shown in FIG. 7, the training device 10A includes a mounting portion 130, a mounting portion 140, a fluid pressure actuator 200, and a controller 300.

  The mounting unit 130 is mounted on the hand of the user 20. The mounting portion 130 is configured by a loop-shaped belt so that the user 20 can surely hold it.

  The mounting portion 140 is mounted on a hook 31 formed on the wall 30, other than the body of the user 20. In the present modification, the mounting part 140 constitutes a second mounting part.

  The mounting portion 140 preferably has a structure that can be easily locked to a locked portion such as the hook 31. In this way, at least the mounting unit 130 may be mounted on the body of the user 20.

  Further, in the above-described embodiment, the mounting unit 110 is mounted on the chest of the user 20 and the mounting unit 120 is mounted on the foot of the user 20, but the mounting unit 110 and the mounting unit 120 do not fit the user 20. It may be attached to other parts. For example, the attachment unit 110 may be attached to the head and the attachment unit 120 may be attached to the shoulder for the purpose of training the neck of the user 20. That is, it can be attached to various parts of the user 20 according to the target part of the training.

  In the embodiment described above, the fluid pressure actuator 200 has the tube 211 and the sleeve 212 that covers the outer peripheral surface of the tube 211, but the sleeve 212 does not necessarily have to cover the outer peripheral surface of the tube 211. . For example, the sleeve may be sandwiched between tubes, or the tube and the sleeve may be integrally formed.

  In the above-described embodiment, the user 20 is assumed to be a human, but the user is not necessarily limited to a human and may include an animal that requires strength training.

  Although the embodiments of the present invention have been described above, it should not be understood that the descriptions and drawings forming a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

10, 10A Training device 20 User 30 Wall 31 Hook 110, 120, 130, 140 Mounting part 180 Hose 200 Fluid pressure actuator 210 Actuator body part 211 Tube 212 Sleeve 221 and 222 Connection part 230 Fitting 240 Through hole 300 Controller 310 For control Valve 320 Control unit 330 Air compressor 340 Pressure tank

Claims (6)

A fluid pressure actuator having a cylindrical tube that expands and contracts according to the pressure of fluid,
A first mounting portion connected to one longitudinal end of the fluid pressure actuator;
A second mounting portion connected to the other end portion of the fluid pressure actuator in the longitudinal direction,
At least the first mounting portion is a training device that is mounted on a user's body.   The training device according to claim 1, wherein the fluid pressure actuator is a stretchable structure in which cords oriented in a predetermined direction are woven, and has a sleeve that covers an outer peripheral surface of the tube.   The training device according to claim 1, wherein the second mounting unit is mounted on the body of the user.   The training device according to claim 1, wherein the second mounting portion is mounted on a body other than the body of the user. A controller for controlling the fluid pressure actuator,
The training device according to any one of claims 1 to 4, wherein the controller changes the amount of fluid flowing into the fluid pressure actuator during exercise of the user.   The training device according to claim 1, wherein the fluid flowing into the fluid pressure actuator is air.

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