Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
  • A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
  • A63B21/0058—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using motors
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
  • A63B21/008—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using hydraulic or pneumatic force-resisters
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
  • A63B21/002—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices isometric or isokinetic, i.e. substantial force variation without substantial muscle motion or wherein the speed of the motion is independent of the force applied by the user
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
  • A63B21/002—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices isometric or isokinetic, i.e. substantial force variation without substantial muscle motion or wherein the speed of the motion is independent of the force applied by the user
  • A63B21/0023—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices isometric or isokinetic, i.e. substantial force variation without substantial muscle motion or wherein the speed of the motion is independent of the force applied by the user for isometric exercising, i.e. substantial force variation without substantial muscle motion
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B2220/00—Measuring of physical parameters relating to sporting activity
  • A63B2220/10—Positions
  • A63B2220/16—Angular positions
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B2220/00—Measuring of physical parameters relating to sporting activity
  • A63B2220/50—Force related parameters
  • A63B2220/54—Torque

Definitions

• the present invention relates to a muscular strength training / measuring machine that can be used not only as a muscular strength training machine but also as a muscular strength measuring machine.
• Background technology This type of strength training machine is used as a training machine for recovering reduced muscle strength, or for strengthening muscle strength or improving exercise capacity. The most common function is to provide a braking effect on a load, handle, pedal, etc. to which a load from the trainee or the subject is applied.
• the first conceivable is a mechanical braking mechanism, which has been widely used for a long time because it is simple, compact, and inexpensive.
• this mechanical braking mechanism has problems such as (1) inaccurate set torque and low reproducibility, and (2) brake torque fluctuates with speed.
• the motor 1 Since the subject rotates the shaft of the permanent magnet type motor 1 through the handle 2 and the pedals 2 and the gear train 3, the motor 1 is used as a generator. In this case, since the shaft torque of the motor 1 is proportional to the armature current, the torque can be set by connecting a variable resistor 4 between both ends of the motor armature, but in order to obtain an appropriate torque To do so, it is necessary to rotate the motor 1 very quickly.
• Fig. ⁇ 2 shows an example of a mechanism that satisfies such a function, and switches one of the speed detector 9a, angle detector 9b or torque detector 9c in the feedback loop.
• the above functions are obtained by selecting with the switch 10.
• an advantage is obtained that the evaluation value can be obtained by monitoring the corresponding detectors 9a, 9b, and 9c for the optional parameters.
• the gear train 3 for aligning the part 2 such as the handle and the pedal with the motor 1 is indispensable, and like the above-mentioned mechanisms.
• the armature inertia of the motor 1 And the effect of friction on gear train 3 is inevitable.
• the present invention uses a mechanical 'feed-pack' type, oil-supply 'torque-torque', which has a large torque inertia ratio, and O
• This kind of mechanical feed-pack type sleeve pressure servo 'torque radiator' (hereinafter referred to as “servo torque ⁇ width machine”) has already been manufactured by Mitsubishi. Made by Metal Corporation, trade name RSA
• the muscle strength training of the present invention is performed by connecting a load mechanism such as a handle ⁇ pedal directly to the output shaft of the above-mentioned bottle crusher, and connecting an electric conversion unit for driving the input shaft to the input shaft.
• the electromechanical converter consists of a DC servomotor and a gear train, and transmits the rotation of the DC servomotor to the input shaft of the servo torque amplifier via gears.
• a surf 'motor drive unit for driving the DC servo motor of the electromechanical converter is connected to the DC servo motor.
• the desired set values of the isometric mode, the constant speed mode, the isometric mode, and the actual values of these modes that are actually output are input to the input addition point of the servo motor drive unit.
• An electromechanical probe amplifier is formed as a whole.
• the actual value of each mode is selectively fed back to the input summation point via the mode switching circuit, and is displayed and recorded on a display, printer, recorder, etc. Have been.
• the actual output value of the isometric mode, constant velocity mode, and isotonic mode is detected between the output shaft of the servo torque amplifier and the handle, pedal, etc., and the input sum of the electromechanical servo amplifier is calculated. Returned to the point.
• the isometric mode is used. Mode and constant velocity mode can be obtained from the gear train of the electrical conversion unit. The position, speed, and torque of each mode can be easily detected by using a well-known potentiometer, tachogenerator, strain gauge, or the like.
• FIGS./(A) to FIG. 2 and FIG. 2 each show an example that can be considered as this kind of muscle force learning nucleus
• FIG. 2 is a block diagram showing an embodiment of the present invention.
• the rotary actuator 13 combined with the guide valve 12 (both are moved from the rotary actuator 13 to the guide valve 12).
• the feedback amplifier mechanism 140 constitutes a servo torque amplifier 14), and the above-described speed, angle, and torque detectors 9a, 9a,
• the biggest feature is that the servo servo amplifier is configured as a whole by controlling with the feedback loop by 9b and 9c or the feedback loop by the speed and angle detectors 1a and 19b. There is.
• the rotary actuator 13 either a swing type or a continuous rotary type can be used.
• an automatic type actuator provides training of the arm (therefore, provides braking to the handle).
• the continuous rotation type actuator is mainly used for training the leg (hence, when giving control to the pedal).
• the guide valve 12 is provided in the rotary actuator 13 and is operated by a hydraulic pressure (eg, hydraulic pressure or air pressure) supplied from a hydraulic pressure source 12a or the like.
• the output shaft of the actuator 13 is made to follow the rotation of the input shaft by the operation of the mechanical feed pack machine 140, and the guide valve 12 is either a direct acting type or a rotary type. Available.
• the rotary type circular valve has advantages such as less performance deterioration due to contamination of the working fluid, and the need for the linear-to-rotational conversion required for the direct-acting type.
• there is no gear train between the actuator 13 and the part 2 such as a handle or a pedal and the torque-to-inertia ratio of the actuator 13 is large. Such influences of acceleration / deceleration torque and friction torque are eliminated, and good operating characteristics can be obtained.
• the electromechanical converter 16 is provided to drive the input shaft of the guide valve 12 of the servo torque amplifier 14 having such a configuration.
• the electromechanical converter 16 includes a DC servo motor 17 and a high-speed gear train 18, a tachometer (speed detector) 19 a, and a photometer (position detector). ) Detectors consisting of 19b are circled.
• a servo motor drive unit 15 is connected to a stage preceding the electric-to-electrical conversion unit 16, and this input forms an input addition point of the electromechanical servo amplifier as a whole and performs servo control of the system.
• the gear train 18 in the electric-mechanical converter 16 transmits only the position (angle) signal and does not transmit power, so that the loss due to itself is extremely low compared to the other methods described above. small. More importantly, since this gear train 18 is divided by the servo torque amplifier 14 into parts 2 such as handles and pedals, it has some adverse effects as described above. There is nothing.
• the feed back signal in the electromechanical servo amplifier is as follows: (1) One of the speed, the angle, and the torque on the output side of the rotary actuator 13; (Each detection signal in this case is detected as an electric signal by each of the detectors 9a, 9b, and 9c, of course.) The detection signal for either one of the velocity or position in the part (in this case, each detection signal is detected as an electric signal by the detectors 19a and 19b, respectively). Can be used. In the case of 1, a so-called “full * closed droop” is formed, and in the case of 2, a so-called semi-closed drove is formed.
• the rotary actuator 13 In general, the output data of the servomotor drive unit 15 is fed-packed from the output shaft to the input addition point of the servomotor drive unit 15.
• the servo torque-width amplifier 14 is used. Since the mechanism itself has a mechanical feedback mechanism 140, it is a semi-closed that detects the actual value of the speed and the actual speed from the gear train 18 and feeds it. There is practically no problem with adopting the droop method. As described above, in the strength training machine of the present invention, the servo control of the system can be completely performed regardless of whether the closed loop or the full closed loop is adopted. Thus, various advantages arise in circuit design.
• the above-mentioned feedback signal is fed-packed to a terminal on one side of an input addition point of the servo motor drive unit 15 via a mode switching circuit 25, and is fed to the other end at an equal length and a constant speed.
• the set value corresponding to each of the isotonic modes is input from the setting device 23.
• the setting device 23 the operation part is a control device.
• the detector 9a, 9b, 9c, 19a, and 19b are used to record a 7-packed signal from a printer or recorder via the mode switching circuit 25.
• a security circuit 24 for keeping the subject and the trainee safe can be provided, and an alarm can be displayed on the display 22.
• Muscle strength training having the above configuration ⁇ Operation of the measuring machine will be described.
• one of position (angle), speed, and torque (force) is selected by the mode switching circuit 25, and then the internal setting device 23a or the external setting device 23b is selected for that mode. Is set as a control signal and input to the input point of the servo motor drive unit 15. Then, the servo torque amplifier detects the detectors 9a, 9b, 9c on the output shaft of the rotary actuator 13 or the detectors 19a, 19b on the gear train in the selected mode. It operates until it becomes equal to the value set by the setting device 23 (23a, 23b).
• the servo torque amplifier Since the response of the operation by the servo torque amplifier is sufficiently faster than the operation of the subject to operate the part 2 such as the handle or the pedal, the servo torque amplifier always maintains the set value. be able to. In this case, the value of each mode can be displayed on the display 22 or recorded by the recording device 21.
• the muscle strength training / measuring machine employs a servo torque amplifier having a mechanical feedback in its own right. Since the amplifier has a high inertia-to-torque ratio and a fast response, it is not necessary to use a conventional gear train for matching with a loaded handle or pedal. Therefore, it is possible to easily manufacture a multi-functional structure as a muscle training machine and a muscle strength measuring machine, and to improve accuracy characteristics and operability. Furthermore, direct reading of the evaluation value and automatic recording of the value can be easily performed. As described above, the strength training / measurement of the present invention can be used as a multifunctional model capable of simultaneously executing the isometric, constant-velocity, and isotonic modes with one unit.

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• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Life Sciences & Earth Sciences (AREA)
• Biophysics (AREA)
• Orthopedic Medicine & Surgery (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Rehabilitation Tools (AREA)

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ID=13492222

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Citations (6)

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• 1980
  • 1980-05-30 JP JP7253880A patent/JPS56168761A/ja active Granted
• 1981
  • 1981-05-28 EP EP19810901502 patent/EP0060302A4/en not_active Withdrawn
  • 1981-05-28 WO PCT/JP1981/000116 patent/WO1981003430A1/ja not_active Application Discontinuation

Patent Citations (6)

Non-Patent Citations (1)

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