JP3991747B2 - Training equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a training device for training the lower limbs, and particularly to a training device effective for preventing knee osteoarthritis.
[0002]
[Prior art]
Conventionally, various walking training devices have been provided, but these are mainly those in which the step part on which the foot is placed moves only back and forth, and in part, the step is added with a back and forth tilt. There was a thing.
[0003]
[Problems to be solved by the invention]
By the way, in order to prevent osteoarthritis of the knee, which is the main cause of knee pain, “walking with the center of gravity passing through the center of the knee” and “strengthening the muscles of the thighs and buttocks” However, the above-described walking training apparatus cannot perform training that satisfies the point of “walking with the center of gravity passing through the center of the knee”.
[0004]
In addition, although the strength training device for skiers and skater disclosed in JP-A-63-9464 is effective in “strengthening the muscles of the thighs and buttocks”, it is still “ The training of “walking as if passing through” cannot be performed, and the prevention effect of knee osteoarthritis is not sufficiently obtained. In addition, since the user performs training by actively applying power, there is a problem that it is painful both physically and mentally.
[0005]
This invention is made | formed in view of such a point, The place made into the objective is to provide the training apparatus which can perform the training for the prevention of knee osteoarthritis exactly and easily.
[0006]
[Means for Solving the Problems]
Thus, the present invention includes a pair of left and right steps for placing the left and right feet, and a drive mechanism for reciprocally moving each step back and forth in the front-rear direction, and moving the left and right steps while shifting the phase of the reciprocal reciprocation. The above drive mechanism has a first feature in that both steps are moved by a phase difference having a period in which both steps are moving in the same direction, and the left and right feet are placed on the drive mechanism. In addition to a pair of left and right steps and a drive mechanism that moves each step straight back and forth in the left and right direction, both steps move in the same direction. And a pair of left and right steps for placing the left and right feet. A first drive mechanism that reciprocates each step linearly in the front-rear direction, and a second drive mechanism that reciprocates each step linearly in the left-right direction. The first and second drive mechanisms that are shifted and moved have a third feature in that both steps are moved with a phase difference that includes a period in which both steps are moving in the same direction. Yes.
[0007]
When moving the step with the left and right feet back and forth or back and forth straight back and forth, the center of gravity is forcibly broken by moving it with a phase difference that provides a period of movement in the same direction, and maintaining the balance of the human body The reflection function works positively.
[0008]
In this case, it is preferable to set the phase difference of the rectilinear reciprocation in the front-rear direction in the left and right steps to 60 ° to 70 ° and the phase difference of the rectilinear reciprocation in the right and left directions in the right step to 15 ° to 20 °. Since the movements of the left and right feet when skating are imitated, it is possible to give a natural action without overwork.
[0009]
Further, it may be provided with a control means for controlling the operation of the drive mechanism and changing the phase difference. Further, even if the control means continuously changes the phase difference from 180 ° to 0 °. Good.
[0010]
It is also preferable that the step is supported so as to be rotatable around the front and rear, right and left and up and down axes.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on an example of an embodiment. In FIGS. 1 to 3, a servomotor 20, a ball screw 21 that is driven to rotate about an axis by the servomotor 20, and an LM guide are included in the base 1. A pair of drive mechanisms 2 for left and right driving composed of slide guides 22 formed in (1) are arranged, and a servo motor 30 and a ball screw 31 that is driven to rotate about an axis by the servo motor 30 are provided on the base 1. A pair of front-rear drive mechanisms 3 composed of slide guides 32 formed of LM guides are arranged.
[0012]
One drive mechanism 3 for front / rear drive is connected to one drive mechanism 2 for left / right drive so that one drive mechanism 3 can be moved to the left and right, and the other drive mechanism 2 for left / right drive is connected to the other. The driving mechanism 3 for driving the front and rear is connected so that the other driving mechanism 3 can move left and right. Sliders 4 and 4 are connected to the drive mechanisms 3 and 3 for front and rear driving, and steps 5 and 5 are arranged on the sliders 4 and 4, respectively. For this purpose, the sliders 4 and 4 provided with the step 5 are individually reciprocally movable back and forth in the front-rear direction by the drive mechanisms 3 and 3 for front and rear drive, and each drive mechanism 2 for left and right drive. , 2 can be moved back and forth in the left-right direction individually.
[0013]
Further, as shown in FIG. 4, the step 5 for the trainer to put the left and right feet is connected to the slider 4 via the gimbal shaft 40, as shown in FIG. The gimbal shaft 40 is rotatable around a shaft 41 erected from the front end side of the slider 4. Therefore, each step 5 is freely rotatable around the axis 41 within a range γ of ± 30 °.
[0014]
The pair of front and rear drive mechanisms 3 and 3 and the pair of left and right drive mechanisms 2 and 2 in the training apparatus configured as described above operate under the control of a control circuit (not shown). However, the control circuit here controls the drive mechanisms 2, 2, 3 and 3 so that the following operations occur in the sliders 4 and 4 (steps 5 and 5).
[0015]
First, when causing the sliders 4 and 4 to perform a linear reciprocating movement in the front-rear direction, a continuous linear reciprocating movement is performed, and at this time, as shown in FIG. By operating the drive mechanisms 3 and 3 so that a phase difference δ1 of 60 ° to 70 ° is generated between them, a period T1 in which the sliders 4 and 4 operate in the same direction is generated.
[0016]
If the trainee puts the left and right feet on both steps 5 and 5, the horizontal center of gravity shifts during the period of movement in the same direction, so the human body is balanced as if it falls down. In addition, muscles centered on the lower limbs, particularly muscles centered on the rectus femoris and hamstrings, are trained. Here, if the phase difference δ1 is 180 °, the trainee can stand without the need to move the center of gravity, does not need to be balanced actively, and the phase difference δ1 is 0 °. If this is the case, the trainer must always actively balance, but if both steps 5 and 5 move in the same direction for the period T1 as described above, the trainer alternates the foot on which the center of gravity is applied to the left and right. By doing so, it is easy to actively balance, and at this time, the balance can be reliably maintained by allowing the center of gravity to pass through the center of the knee.
[0017]
Further, when the sliders 4 and 4 (steps 5 and 5) perform the rectilinear reciprocation in the left-right direction, the sliders 4 and 4 (steps 5 and 5) perform the continuous rectilinear reciprocation, and at this time, as shown in FIG. By operating the drive mechanisms 3 and 3 so that a phase difference δ2 of approximately 15 ° to 20 ° is generated between the left and right 4 movements, a period T2 operating in the same direction is generated between the sliders 4 and 4. .
[0018]
Even in this case, if the trainee puts the left and right feet on both steps 5 and 5, the center of gravity in the horizontal direction will shift during the period of movement in the same direction, so the human body must be balanced so that it will not collapse. For this reason, muscles centered on the lower limbs, particularly muscles centered on the adductor and abductors are trained. In addition, when both steps 5 and 5 move in the same direction only for the period T2 as described above, the trainer can easily actively balance by changing the foot on which the center of gravity is applied to the left and right alternately. At this time, the balance can be reliably maintained by allowing the center of gravity to pass through the center of the knee.
[0019]
When the left and right drive mechanisms 2 and 2 and the front and rear drive mechanisms 3 and 3 are operated simultaneously, the control circuit moves the sliders 4 and 4 (see FIG. The drive mechanisms 3 and 3 are operated so that the movement shown in FIG. 5 occurs in the sliders 4 and 4 (steps 5 and 5). In this case, because it is necessary to take active balance in the front-rear and left-right directions, muscles centered on the rectus femoris and hamstrings and muscles centered on the adductor and abductors are trained. In addition, in order to easily achieve active balance, it is necessary for the trainee to more accurately make the center of gravity pass through the center of the knee when the foot on which the center of gravity is to be placed is switched alternately left and right. The trainer can learn that the center of gravity passes through the center of the knee.
[0020]
By the way, the phase difference δ1 of about 60 ° to 70 ° for the forward and backward movements and the phase difference δ2 of about 15 ° to 20 ° for the left and right movements observe the movement of the left and right feet when a human skates. The observation data is shown in FIG. FIG. 7A shows the front-rear direction, and FIG. 7B shows the left-right direction. In FIG. In the front-rear direction, since the traveling direction is negative and the translational component of the traveling direction is subtracted, the smaller the value is, the more forward the foot is.
[0021]
Therefore, if the left and right steps 5 and 5 are caused to perform the combined movement of the forward / backward and left / right rectilinear reciprocating motions with the phase differences δ1 and δ2 set based on the observation data, a pseudo skating operation is performed on the trainee. Since such a movement becomes a natural foot movement that is not unreasonable for the trainer, the training can be performed easily.
[0022]
Further, since the step 5 is rotatable with respect to the slider 4 in the ranges α, β and γ as described above, an excessive load is not applied to the ankle of the trainee, and the ankle Because it is in an unstable state without being fixed, it means that muscles of the lower leg (hyfuku muscle, anterior tibial muscle, soleus muscle, etc.) will be used, and muscle training of the lower limbs can be performed in a more balanced manner It has become. FIG. 8 shows an example in which the movement of step 5 is observed when the trainee performs the pseudo skating operation. It can be seen that the operation for balancing is being performed.
[0023]
By the way, the phase difference δ1 of the left and right steps 5 and 5 for the forward and backward movements and the phase difference δ2 of the left and right steps 5 and 5 for the left and right movements are not limited to the above numerical values, but within a range of 0 ° to 360 °. A control circuit may be formed so that it can be set freely.
[0024]
Further, the control circuit starts the drive mechanisms 2 and 3 with the phase difference δ1 (δ2) being 180 ° as shown in FIG. 9, and then the left and right feet are in the same front-rear direction (and left-right direction). You may perform control which shifts a phase so that the moving periods T1 and T2 may increase. For the elderly, etc., we will operate in a state where the center of gravity is not collapsed, and then gradually move to a state where it must be actively balanced without giving the trainer a fear of movement. can do.
[0025]
In addition, 7 in a figure is the handrail erected on the base 1, and has arrange | positioned forward and right and left in order to prevent a trainee from falling down without being balanced. Further, FIG. 10 shows a structure in which steps 5 and 5 are moved back and forth, and right and left, and a cover 8 for concealing the drive mechanisms 3 and 3 is arranged.
[0026]
In the above embodiment, the front and rear drive mechanisms 3 and 3 and the left and right drive mechanisms 2 and 2 are provided. However, only the drive mechanisms 2 and 2 or only the drive mechanisms 3 and 3 are provided. Of course, it may be a thing.
[0027]
【The invention's effect】
As described above, the present invention includes a pair of left and right steps for placing the left and right feet, and a drive mechanism for reciprocally moving each step back and forth in the front-rear direction. Since the above-mentioned drive mechanism that moves by shifting moves both steps with a phase difference that includes a period in which both steps are moving in the same direction, a trainee who has left and right feet on both steps During the period when the step moves in the same direction, it will be balanced as it will not fall down, and for this reason muscles centered on the lower limbs, especially muscles centered on the rectus femoris and hamstrings, will be trained. In order to achieve balance, it is easy to actively balance by changing the foot that puts the center of gravity alternately on the left and right. By making the center of gravity pass through the center of the knee, balance can be reliably maintained, and therefore training appropriate for the prevention of knee osteoarthritis by allowing the center of gravity to pass through the center of the knee It can be performed.
[0028]
In addition, the drive mechanism includes a pair of left and right steps for placing the left and right feet, and a drive mechanism for moving each step straightly reciprocally in the left-right direction, and moving the steps by moving the phases of the straight reciprocation of both the left and right steps. If both steps are moved by a phase difference having a period in which both steps are moving in the same direction, a trainee who has left and right feet on both steps moves both steps in the same direction. Therefore, the muscles of the adductor and abduction muscles will be trained for this purpose. When the balance is taken, the center of gravity passes through the center of the knee, so that appropriate training for prevention of knee osteoarthritis can be performed.
[0029]
A pair of left and right steps for placing the left and right feet; a first drive mechanism that reciprocates each step in the front-rear direction; a second drive mechanism that reciprocates each step in the left-right direction; And the first and second drive mechanisms that move the left and right steps while shifting the reciprocal phase of the straight movement move both steps with a phase difference that includes a period in which both steps are moving in the same direction. Trainers must actively balance the front, rear, left, and right, and for this reason, the muscles centered on the rectus femoris and hamstrings, and the adductor and abduction muscles. As the muscles are trained, and when the trainer actively balances the foot on which the center of gravity is placed, the center of gravity passes through the center of the knee. It is possible to perform appropriate training in the prevention of joint disease.
[0030]
In this case, skating is performed when the phase difference of the rectilinear reciprocation in the front-rear direction in the left and right steps is set to 60 ° to 70 ° and the phase difference of the rectilinear reciprocation in the right and left directions in the right step is set to 15 ° to 20 °. Since the movement of the left and right feet is imitated, the movement becomes natural and natural, and training can be performed without causing the trainee to feel anxiety or fear.
[0031]
Moreover, if the control means for controlling the operation of the drive mechanism and changing the phase difference is provided, it is possible to carry out active balancing training in various phase difference states. If the phase difference is continuously changed from 180 ° to 0 °, it is possible to start in a state where it is not necessary to balance actively and shift to a state where the balance must be gradually balanced. For this reason, the elderly can easily become familiar with the training.
[0032]
In addition, if the step is supported so as to be rotatable around the front, rear, left and right and the vertical axis, an excessive load is not applied to the ankle and muscles can be trained by a balance securing operation due to the unstable ankle.
[Brief description of the drawings]
FIG. 1 is a cutaway plan view of an example of an embodiment of the present invention.
FIG. 2 is a rear view of the above.
FIG. 3 is a cutaway side view of the above.
4A and 4B show a connecting portion between the slider and the step, in which FIG. 4A is a plan view, FIG. 4B is a cutaway side view, and FIG. 4C is a partial front view.
FIG. 5 is an explanatory diagram of an example of the operation described above.
FIG. 6 is an explanatory diagram of another example of the operation described above.
FIGS. 7A and 7B are time charts of observation data of skating movements.
FIGS. 8A, 8B, and 8C are time charts of observation data of the movement of the steps in the above.
FIG. 9 is an explanatory diagram of still another example of the operation described above.
FIG. 10 is a perspective view showing a use state of the above.
[Explanation of symbols]
1 Base 2 Drive mechanism for left / right drive 3 Drive mechanism for front / rear drive 4 Slider 5 Step

Claims (8)

A pair of left and right steps for placing the left and right feet, and a drive mechanism for moving each step straight forward and reciprocally in the front-rear direction, respectively, and the drive mechanism for moving the left and right steps while shifting the phase of the straight forward reciprocation are as follows: A training apparatus, wherein both steps are moved by a phase difference having a period in which both steps are moving in the same direction. A pair of left and right steps for placing the left and right feet, and a drive mechanism for reciprocally moving each step in the left-right direction, respectively, and the above-described drive mechanism for moving by shifting the phase of the reciprocal reciprocation of both the left and right steps, A training apparatus, wherein both steps are moved by a phase difference having a period in which both steps are moving in the same direction. A pair of left and right steps for placing the left and right feet, a first drive mechanism that reciprocates each step linearly in the front-rear direction, and a second drive mechanism that reciprocates each step linearly in the left-right direction are provided. In addition, the first and second drive mechanisms that move the left and right steps while shifting the rectilinear reciprocal phase move both steps with a phase difference that includes a period in which both steps are moving in the same direction. A training device characterized by being. The training apparatus according to claim 1 or 3, wherein a phase difference of the rectilinear reciprocation in the front-rear direction in the left and right steps is set to 60 ° to 70 °. The training apparatus according to claim 2 or 3, wherein the phase difference of the rectilinear reciprocation in the left-right direction in the left and right steps is 15 ° to 20 °. The training apparatus according to any one of claims 1 to 3, further comprising control means for controlling the operation of the drive mechanism and changing the phase difference. The training apparatus according to claim 6, wherein the control means continuously changes the phase difference from 180 ° to 0 °. The training device according to any one of claims 1 to 7, wherein the step is supported so as to be rotatable around the front, rear, left, right, and up and down axes.

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