JP3137990B2 - Kick training equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a training apparatus based on a novel muscular exercise principle for the purpose of strengthening the isometric muscle strength of the back muscle group and the abdominal muscle group, and in particular, mainly the rotational movement of the lower limb. The present invention relates to a kick-type training device that mainly performs a kick motion of a lower limb, that is, a linear or circular reciprocating motion of a rear leg with respect to a conventional exercise bike (so-called bicycle rowing device).

BACKGROUND ART In recent years, various training devices for the purpose of strengthening cardiopulmonary function and strengthening muscles have become widespread, but these are basically intended for healthy persons. The training equipment installed in the gym of the fitness club is just the best equipment for active sportsmen to build a stronger body.

However, most people who want to exercise after becoming a member of society can be said to be semi-healthy. For example, people who have a history of orthopedic surgery such as low back pain and knee pain, people with a medical history such as high blood pressure and diabetes, and people who are concerned about obesity and cholesterol level. It is. In this sense, there is an urgent need to develop training equipment suitable for semi-healthy people.

In the development of training equipment for semi-healthy people, the viewpoint of strengthening isometric muscle strength (= muscle strength supporting the skeleton) is extremely important. It has been medically known that diseases represented by low back pain and knee pain become sick when this isometric muscle strength is reduced. It is also known that the greatest cause of adult disease is a decrease in basal metabolism, but the major cause is also a decrease in isometric muscles.

Conventionally, there are many training devices for training isotonic muscle strength (= muscle strength for performing exercise), but there is no device for training the above isometric muscle strength.

DISCLOSURE OF THE INVENTION Accordingly, the main technical problem to be solved by the present invention is to provide a novel technique for enhancing isometric muscle strength, in particular, isometric muscle strength of the back muscle group and the abdominal muscle group, which is the largest cause of low back pain. To provide training equipment.

Another problem is to provide a training device that can comfortably train the above-mentioned isometric muscle strength even for a semi-healthy person or a person having a disease in the hips and knees.

A further object is to provide a training device that is more efficient than conventional exercise bikes in improving cardiopulmonary function and basal metabolism, and that can accurately calculate energy consumption.

Further, a further object is to provide a training device capable of effectively aligning and strengthening the isotonic muscular strength of the thigh and lower leg, which is a major factor in knee pain, in addition to the enhancement of the isometric muscular strength. is there.

A further task is to improve coordination between the lower limb girdle muscle group and the back muscle group during exercise. In particular, the coordination between the cochlear muscle group and other muscle groups, ie, the cochlear muscle group and the back muscle group, the cochlear muscle group and the iliopsoas, and the cochlear muscles and the thighs An object of the present invention is to provide a training device that can improve the coordination of each exercise with a group.

According to the present invention, there is provided a kick-type training apparatus having the following configuration.

This kick-type training device is composed of a body composed of a frame, a pedestal, etc., a saddle mounted on the body, on which the user sits, and a load generation that applies a load to both lower limbs when the user's lower limbs act. Means. The load generating means is a pair of step means, in which both feet of the user are placed, and moves in the same direction by alternate kicking motion of the lower limbs of the user in the backward direction, that is, a stepping rod or a pedal, and a rear of each step means. , That is, a substantially linear or arcuate movement substantially horizontally rearward, diagonally lower rearward, or substantially diagonally upper rearward, while releasing the stepping force on each step means, It is characterized in that it includes a load means such as an air cylinder or a weight for automatically returning it to the front, preferably quickly.

The user sits on the saddle and simply steps on the lower limbs alternately and continues the exercise for a certain period of time. By performing the stepping motion of the step means, the isometric muscle strength of the back muscle group is trained, and the isometric muscle strength of the abdominal muscle group is also trained in cooperation with this. In other words, this muscle strengthening exercise does not directly stress the spine and abdominal muscles, but indirectly trains the spine and abdominal muscles by a substantially linear simple kick exercise of front and rear or up and down exercise of the lower limb You can do it. Furthermore, the posture of leaning forward with respect to the lower back or pelvis, that is, the leaning forward posture, which is a poor posture like a conventional exercise bike,
You do not need to take the exercise, you can exercise in a superior position. That is,
In the case of a conventional exercise bike, the upper body, that is, the torso, leans forward against the waist in an upright posture on the saddle, so excessive force is applied to the waist, and the muscles around the spine become excessively tensed and muscle fatigue occurs. There is a problem of bringing
According to the training device of the present invention, when the trunk is bent forward, the waist is also tilted forward accordingly, in other words, by leaning the entire body forward, the superior limb position can be obtained. It is.

Further, according to the training device of the present invention, the kicking motion in the lower leg long axis direction is substantially a pendulum motion with the hip joint as a fulcrum, and the driving force output from the user is a certain amount that the lower limb muscles match the load. This is largely due to the movement of the center of gravity of the trunk performed while maintaining the tension, so that the knee joint and the ankle joint can be maintained at a substantially constant joint angle despite the exercise of applying a load to the lower limbs. Therefore, muscular strength exercises can be performed while largely avoiding those joint exercises. Usually, movement pain occurs when the joint moves excessively.

Therefore, even if the back muscles and abdominal muscles are weak, and even if there is a lower back disease, it is possible to perform a kick exercise easily without applying excessive force to the waist, knees, ankles, etc., and their isometric Strengthen muscle strength. Incidentally, although it is the same as a conventional exercise bike in terms of simply moving the lower limb while sitting on the saddle, the movement form of the lower limb is essentially different. With an exercise bike, the above-mentioned isometric muscle strength cannot be effectively trained.

In addition, the kick motion in the longitudinal direction of the lower leg can efficiently absorb the force applied to the joint region of the knee and the foot by the muscle group constituting the thigh and the lower leg, thereby causing the joint to move to the same joint region. Such a burden is greatly reduced. In the kick motion in the lower leg long axis direction, the conduction of the exercise load to the trunk is transmitted linearly and faster than other exercise modes. This means that the speed of transmission of afferent information transmitted through nerve fibers to the central nervous system also increases. This means that a reflex bow (= a state in which muscles perform cooperative play) quickly is formed, which is very useful for improving coordination inhibition between muscle groups.

Further, according to this training device, the stepping-down movement of the step means is a substantially linear movement, and is not a rotational movement of the pedal as in a conventional exercise bike. Therefore, the load can be continuously applied while the step means is depressed, and the cardiopulmonary exercise effect can be efficiently obtained in a short time as compared with the exercise bike. At the same time, the isotonic muscle strength of the thigh and lower body can be enhanced. By the way, in the case of a conventional exercise bike,
When the pedal is depressed, that is, in the first half of the pedal rotation, a load of a predetermined value is applied to the lower limb, but in the latter half of the pedal rotation, the pedal coasts, and in other words, the load is extremely reduced, so that the exercise loss is large. Therefore, exercise efficiency was not sufficient, and in order to obtain a sufficient cardiopulmonary exercise effect, the exercise time had to be relatively long.

The kicking motion of the step means is a motion in the longitudinal direction of the lower leg, and it goes without saying that the kicking motion literally includes a motion along a straight line. Of course. In short, it is only necessary that the lower leg of the user can be kicked substantially linearly rearward.

In the training device having the above configuration, the kick exercise of the lower limb is performed in a range where the angle between the trunk and the thigh is 100 ° to 220 ° in a state where the user is seated on the saddle. Is preferred. The smaller the angle, the more the spine deforms linearly and the more stress is placed on the back muscles, which is not preferable for a person with low back pain. Although it varies depending on the user, when the angle is approximately 100 ° to 110 ° or more, such stress is hardly generated, so that the exercise becomes reasonable. The angle of 180 ° means that the body is upright and the body is fully extended, and an angle larger than 180 ° means that the body is skewed. In the kicking motion of the lower limb, when the step means is kicked backward, the lower limb moves to an angle of about 220 °, though there are individual differences among users. The kicking motion of the lower limb is similar to the walking motion of the lower limb when climbing a slope. In order to keep the angle within the above range, it is preferable to provide a guide means for guiding the movement of each step means so as to satisfy the condition.

The guiding means may be means for guiding each of the step means backward substantially along a straight line, or may be means for guiding each of the step means backward in a circular arc.

The guide means comprises a swing arm having a balance weight connected to an upper end thereof, the upper end of the swing arm being pivotally connected to a substantially saddle level of the saddle or body, and the step means being provided at the lower end of the swing arm. A pivotally connected configuration can also be used. According to this configuration, the interval between the waist of the user and the step means is maintained substantially constant during the stepping motion of the step means, so that the bending angle of the knee is accurately fixed.

In order to satisfy the above conditions, it is preferable to provide a means for adjusting the saddle position (front-back position, up-down position). By adjusting the saddle position according to the physique of the user, in a range where the angle between the trunk and the thigh is 100 ° to 220 ° when the user is seated on the saddle,
It is preferred that kicking of the lower limb be performed. The saddle position adjusting means may simply be a system in which the saddle support bar is fixed to the body with a height adjusting screw height adjusting pin, but may be a system in which the saddle support bar is moved up and down by a hydraulic lifting device. .

Further, in order to satisfy the above conditions, it is preferable to further comprise a handshake means for a user sitting on the saddle to hold the trunk with both hands and stably support the trunk. When the kicking motion of the lower limb is performed, the trunk tends to move forward as a reaction of the kicking motion. One means for supporting this reaction force is the handshake means. This handshake means can be constituted by a grip which is directly held by a hand, and an arm which supports the grip so that the height position and the front-back position can be adjusted.

In addition to the handshake means, it is preferable to further include abdominal support means for supporting the trunk of the user in a forwardly inclined posture.
The abdomen support means preferably includes abdominal support pads, a forward tilt angle adjusting means for adjusting the forward tilt angle of the pad, and a means for adjusting the height thereof. The abdomen support pad is most effective for performing a kick exercise of the lower limb while supporting the trunk in the forward leaning posture.

In addition to the abdominal support pad, it is more effective to further include an elbow support pad for supporting the user's elbow.

Further, it is preferable that the load generating means includes a second guiding means for guiding each step means so that the bending angle of the knee is substantially constant while each step means is depressed. With this configuration, the knee is hardly bent and stretched, so that no burden is imposed on the knee. Therefore, even a person with a knee disease can easily exercise.

Furthermore, the saddle is generated when the user alternately exercises the lower limbs of the user by interposing the saddle body, the saddle support that supports the saddle body upward, and the saddle body and the saddle support. It is preferable to further include a swing unit that swings right and left following the right and left swing of the waist. The swinging means can be simply composed of a leaf spring or a coil spring, but may be an air spring or a hydraulic electric type. Further, the saddle body may be made of a flexible material containing a gel-like substance. With such a configuration, an excessive force is not generated in the waist, and the pedal can be easily depressed. Further, since the waist swings in response to the depression of the pedal, it becomes easy to keep the knee bending angle constant.

In order to stably support the back of the user sitting on the saddle, a backrest means may be provided. This backrest means is also preferably constituted by a backrest pad and an arm for supporting the backrest pad so that the height position can be adjusted in order to match the user's physique.

It is preferable that the load generating unit further includes a control unit that automatically returns the piston rod to the raised position together with the step unit when the pedal depressing force is released, while setting the load during stepping of the step unit to a substantially constant value. However, from the viewpoint of the ease of the kicking motion of the lower limb, it is preferable to control the initial step load and the final step load to be small, to gradually increase the initial step between the initial step and the final step, and to gradually decrease after the step.

A training device as a preferred embodiment of the load generating means has a pair of swing arms, each of which has the above-mentioned step means mounted on a lower end thereof, and has an upper end pivotally connected to the saddle or the substantially saddle level of the body, It is preferable that the arm is driven by the swinging motion of the arm and that the end of the arm includes a belt connected to the load means. As the load means, a pneumatic or hydraulic cylinder, or a weight conventionally used for this type of training equipment can be used.

Further, as a preferred mode, a plate cam means which rotates together with the rotation of the upper end of each of the swing arms, and has one end of the belt fixed along the cam peripheral surface and the other end guided to the load means. Further, the cam peripheral surface shape of the plate cam means, the load during the stepping of the step means, in a substantially constant range, and reducing the initial stepping load and the final stepping load, the initial stage of the stepping It is preferable that the shape is controlled so as to be gradually increased from the final stage and then gradually reduced.

The control means may further include means for adjusting a stepping load of the step means. This is to cope with the physical strength of the user.

The load means is usually constituted by an air cylinder.
As described above, the load means can be constituted by an elastic means such as a coil spring, a hydraulic device, or a weight, but it is preferable to use an air cylinder using air pressure. In the case of the air cylinder, it is technically easy to instantaneously return the piston rod to the initial position together with the step means when the pedal depression force is released. Further, while the load during stepping on the stepping means is set to a substantially constant value, when the stepping force of the stepping means is released, the piston rod and the stepping means may cooperate with the control means for automatically returning the stepping means to the initial position. Easy. If the step means is configured to quickly return to the initial position, the number of steps of the step means per unit time can be increased, and there is an advantage that time-efficient exercise can be performed. It has been pointed out that one of the important factors of muscle strengthening exercise is to apply a constant load continuously. However, the fact that the load while the pedal is depressed is always a substantially constant value meets this condition. I have. Further, in this case, the energy consumption of exercise, in other words, the amount of work, can be calculated with high accuracy. That is, it can be accurately calculated by the formula of <load (force) x exercise distance>. In this type of training equipment in recent years, it is important to specify energy consumption per unit time. By the way, in the case of a conventional exercise bike,
Since the load during the rotation of the pedal fluctuated considerably, the energy consumption could not be calculated accurately.

The air cylinder is preferably a cylinder body,
The cylinder body includes a piston and a piston rod, and the cylinder body accommodates the piston and the piston rod so as to reciprocally slide, an outer cylinder that forms a double cylinder with the inner cylinder, and closes upper ends of the inner and outer cylinders. Along with the upper plate through which the piston rod penetrates, a bottom plate having a release port for closing the lower end of the inner and outer cylinders and releasing the bottom of the inner cylinder space to the outside, and the inner and outer cylinder space and the inner cylinder space at their upper parts It is preferable that the first communication unit communicate with the first communication unit.

In order to use an air cylinder as a load means, and to maintain a substantially constant load during kick motion by the lower limb, it is important that the cylinder internal pressure does not fluctuate greatly due to the movement of the piston. According to
Usually, it is necessary to use an easy large air cylinder or to prepare an air tank communicating with the small cylinder separately from the small cylinder. However, according to the cylinder structure of the present invention, a pressure chamber corresponding to a conventional air tank can be secured between the inner cylinder and the outer cylinder, and the size of the cylinder can be sufficiently reduced.

The communication means is usually constituted by a through hole formed in the upper part of the inner cylinder.

In order to adjust the initial pressure between the inner and outer spaces and the inner cylinder space, it is necessary to further include a pressure adjusting unit. The pressure adjusting means includes a second communicating means such as a through hole for communicating the inner and outer spaces with the outside, a valve means connected to the second communicating means, an air compressor connected to the valve means, a valve means and an air compressor. Pressure control means for controlling the pressure. With this configuration, the initial pressure in the cylinder can be easily controlled by the electric control means. On the other hand, when the weight is used, it is necessary to directly adjust the way and the operation is troublesome.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings illustrate a preferred embodiment of the present invention.

FIG. 1 is an overall perspective view of a kick-type training apparatus according to a basic embodiment of the present invention.

FIG. 2 is a use state diagram showing a state in which the training apparatus of FIG. 1 is used. However, the user is shown schematically.

FIG. 3 is an explanatory diagram illustrating a kick exercise of the training device of FIG. However, the user is shown schematically.

FIG. 4 is a rear view of the saddle of the training apparatus of FIG.

FIG. 5 is an explanatory diagram showing a main part of a kick training apparatus according to a modification of the first embodiment of the present invention.

FIGS. 6, 7, and 8 are a front view, a right side view, and a plan view, respectively, showing the entire kick-type training apparatus according to the second embodiment of the present invention.

FIGS. 9 and 10 are a right side view and a rear view, respectively, showing a main part of the saddle and the position adjusting means of the second embodiment.

FIG. 11 is a right side view showing the main part of the abdomen support pad and the position adjusting means of the second embodiment.

FIG. 12 is a cross-sectional view of the air cylinder according to the second embodiment.

FIG. 13 is an explanatory diagram showing the shape of the cam of the second embodiment and the belt pulled by the cam.

FIG. 14 is a graph showing the relationship between the load applied to the lower leg of the user and the rotation angle of the lower leg in the second embodiment.

FIG. 15 is an explanatory diagram illustrating a kick motion in the second embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 show an overall kick-type training apparatus according to a first embodiment of the present invention. As shown, the device includes a saddle 3 above a pedestal-shaped body 1. As shown in FIGS. 2 and 3, the user sits on the saddle 3 and performs training by kicking or stepping on a pair of pedal means provided on the body 1, specifically, the pedal 2c. Do.

The saddle 3 is composed of a saddle body 3a and three coil springs.
It is configured to be supported by the saddle support 3c via 3b.
FIG. 4 shows a state in which the saddle is viewed from the back. One of the coil springs 3b is disposed at the front center of the saddle, and the other two are disposed at the rear left and right of the saddle. Therefore, the saddle body 3a can swing back and forth and left and right with respect to the saddle support 3b.

To the left and right of saddle 3, the body of the user during training
A pair of handshake means 5a to 5d for supporting H2 is provided.
Each handshake means is an arm fixed to the left and right of the saddle support 3c
5a to 5c, and a grip 5d supported by the arm portion. The arm part has an L-shaped first arm part 5a directly fixed to the saddle support 3c, a second arm part 5c for supporting the grip 5d in an upright posture, and both arms 5a, 5c with adjustable length. And an elbow-shaped third arm 5b to be connected. The positions of the arms 5b and 5c can be adjusted so as to be slidable in the directions of the arrows Y and X, whereby the height position and the front-rear position of the grip 5d can be adjusted.

Behind saddle 3, the body of the user during training
A backrest is provided to support the H2 from behind. The backrest means comprises an L-shaped backrest arm 6a directly connected to the saddle support 3c, and a backrest pad 6b mounted on the arm so as to be adjustable in height. Backrest arm 6a
Are formed with a plurality of screw holes 6c for height adjustment, and the pad 6a can be fixed at a high position convenient for the user using the height adjustment screws 6d.

The saddle 3 is supported by the body 1 via a support rod 4a so that the height of the saddle 3 can be adjusted. The upper end of the support rod 4a is a saddle support
It is fixed to the bottom of 3c, and its lower end is a body cover
It is inserted into the insertion port 1c formed in the upper front part of 1a.
The support rod 4a is formed with a plurality of screw holes 4a, and the height adjustment screw 4b is used to fix the support rod 4a at the insertion port 1c so that the height position can be adjusted.

The body 1 supports each of the pedals 2c,
A pair of air cylinders 2 are provided on the left and right sides of the body as load generating means for each of the lower limbs of the user to perform a kicking motion diagonally downward and rearward along a substantially straight line. Each air cylinder 2
It has a cylinder 2a and a piston rod 2b, and a pedal 2c is attached to the tip of the piston rod 2b so as to be rotatable within a certain angle range. Cylinder 2a and piston rod 2b
As shown in the figure, the installation direction is inclined obliquely from the upper front to the lower rear. This angle of inclination is set so that the user can depress the pedal properly.

In FIG. 2, reference numeral 7 denotes a control device in a simplified manner. The control device itself is a known device, and the air cylinder itself provided with the control device is also a known device. With this control device, the load while the pedal is being depressed is always set to a substantially constant value, and when the pedal depressing force is released, the piston rod and the pedal can be automatically and spontaneously returned to the raised position. That is, while the pedal is being depressed, the load is substantially constant at any position of the depressing stroke and does not change.

The control device 7 is connected to an external control panel 7a. In the figure, this control panel 7a is the body cover 1a
Is provided on the lower side, but instead of this, grip 5d
Or may be located in front of a user seated by special support means. By operating this control panel, the magnitude of the load on the air cylinder 2 can be adjusted. Also, a user's heart rate detection device (not shown)
And the controller 7 can be connected to automatically control the load on the air cylinder based on the heart rate.

Well, next, kick-type training equipment of the above structure,
The method of use will be described based on FIG. The user adjusts the saddle position according to his / her physique and adjusts the load on the air cylinder according to his / her physical strength and physical condition. Then, sit on the pedal 3 and put your back on the back pad
While hitting 6a, the pair of grips 5d are held with both hands, and the lower limbs start alternately pedaling. FIG.
The figure shows a step in which the lower limb descends along a substantially straight line from an ascending position to a descending position in response to pedal depression. In the raised position, the angle θ1 formed by the trunk H2 and the thigh H3 is preferably about 100 ° to 120 °. On the other hand, the angle θ1 at the descending position may be 180 °, but is set to an angle larger than 180 ° in the figure (up to about 220 ° is possible). This angle setting is determined by setting the height position of the saddle 3 and the rising position and the falling position of the pedal 2c.
The bending angle θ2 of the knee H1 is preferably approximately 90 °, and it is preferable that the angle θ2 does not fluctuate from the rising position to the falling position. Therefore, the inclination angle of the cylinder 2 is set so as to satisfy this requirement. Further, as described above, since the saddle body 3a can swing right and left, the waist can move up and down in the vertical direction Y in response to the depression of the pedal, so that the knee bending angle θ2 is maintained substantially constant. be able to.

The pedal depression movement is performed by alternately moving both lower limbs. During exercise, the torso can be grasped by grasping the grip 5d and hitting the back to the back pad 6b.
H2 can be stably supported. By performing the pedal depressing exercise in this manner, the back muscle group and the abdominal muscle group, particularly the isometric muscle strength therein, are trained in conjunction with the vertical movement of the lower limb. Of course, since a load is applied to the lower limb itself, the isotonic muscle strength of the thigh H3 and the lower thigh H4 is simultaneously trained.

With this kick-type training device, the torso can be erected on a saddle and exercise can be performed in a superior limb position (an angle θ1 of 90 ° or more and no unnecessary stress is applied to the back muscles). is there. Also, since pedaling movement is basically up and down movement, no excessive force is applied to the waist, and furthermore, if the bending angle θ2 of the knee is kept constant, there is no knee joint movement, so that the lower back This exercise can be easily performed even by a person with a knee disease.

In the above embodiment, the piston rod of the air cylinder 2 is used.
2b is kicked obliquely downward and rearward along a straight line. However, as described above, in the present invention, the kick direction does not necessarily have to be along a straight line in a strictly geometrical sense. FIG. 5 shows a modification in which the kick direction of the piston rod 2b is substantially rectilinear downward and backward, but in a strictly geometric sense, obliquely downward and backward along a curve or an arc. Is shown.

The basic structure of this modification is the same as that of the first embodiment, but differs in the following point. That is, the angle pedal 2c is
It is pivotally attached to the tip of the piston rod 2b and at the same time to the lower end of the swing arm 8. The upper end of the arm 8 is pivotally connected to an appropriate position of the saddle 3 by a pivot P5. When the pedal 2c is depressed, the arm 8 swings along the arc P2 like a pendulum with the pivot P5 as a fulcrum. Therefore, the pedal 2c moves along the arc P2.

On the other hand, the air cylinder 2 pivotally connects the rear end of the cylinder 2a to the body 1 with a pivot P4 in order to follow the arc movement of the pedal 2c. Therefore, the entire air cylinder 2 swings appropriately in the direction of arrow P3 according to the position of the pedal 2c on the arc P2.

According to the configuration of the above modified example, the movement trajectory of the pedal 2c is
The pivot P5 of the arm 8 is regulated by the arc P2, which is the swing locus of the arm 8, and the pivot P5 of the arm 8 is pivotally attached to the saddle 3 and approaches the waist of the user. It is almost constant. Therefore, the winding angle θ2 of the knee H1 is
Compared to the case of the embodiment, that is, the case where the straight line P1 is used as the movement trajectory of the pedal, there is an advantage that the angle is kept more constant and it is hard to fluctuate. Also, the movement of the pedal is smoother than along a straight line.

Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the usability is improved by further improving the first embodiment.

In this embodiment, the body 1 is constituted by a frame. This frame includes a pair of side stands 1d, one center front stand 1m, an upper frame, and a bottom frame. The upper frame is the front frame member 1j
And left and right frame members 1k and 1i connected to the left and right of the frame member 1j. On the other hand, the bottom frame
The front frame member 1f, the rear frame member 1h, and the left and right frame members 1 connected to the left and right of these frame members 1f and 1h.
e, 1g. The upper and lower ends of the central front stand 1m are connected to the upper and lower front frames 1j and 1f.

Reference numeral 3 in the drawing indicates a saddle. This saddle 3
It is located substantially at the center of the frame body 1 and includes a saddle body 3a and a saddle support 3c under the saddle body 3a. The saddle body 3a has urethane foam,
Alternatively, it is configured by packing a flexible material such as a gel-like substance. These flexible members have the same function as the coil spring 3B in the first embodiment. The saddle 3 is supported on the frame body via a support rod 4 so that the height of the saddle 3 can be adjusted. That is, a saddle support frame member 1n extends from the intermediate portion of the center front stand 1m to the back side, and the saddle support bar is attached to the frame member 1n as well shown in FIGS.
1p is nested. The support bar 4 is inserted into the through hole of the block 4c fixed to the tip of the saddle support bar 1p from above. The support rod 4a has an appropriate number of height adjustment holes 4a, while the block 4c has pins 40b to be inserted into those holes 4a. Similarly, the saddle support bar 1p also has an appropriate number of distance adjusting holes 1q,
The saddle support frame member 1n has pins 4d to be inserted into these holes 1q. Thereby, the height position of the saddle and the front-back position in the horizontal direction can be adjusted.

On the upper frame and on the front side, a support plate 22 is provided, and the support plate supports a pair of left and right grips 5d, a pair of left and right elbow support pads 19, and one abdominal support pad 18. . One end of the support plate 22 is pivotally connected to the guide rod 21. This guide rod 21 is connected to the side support frame member 1k.
It is supported on a pair of bearing blocks 20 fixed thereon so as to be movable forward and backward. Therefore, the guide rod 21 can be rotated upwardly about the guide rod 21 to open, and can slide along the guide rod 21. On the other hand, the other end of the support plate 22 is supported on the side frame member 1i. A pin plate 22a is fixed to the lower surface of the other end of the support plate 22. This pin plate 22a
The support plate 22 has a pin (not shown) projecting from the lower surface of the gap adjusting plate. These pins are adapted to be fitted into pin holes 22b formed in a line on the upper surface of the side frame member 1i, so that the support plate 22 can be positioned back and forth. In addition, each grip 5d is an arm 5c
Is fixed to the support plate 22 via a through-hole.

As well shown in FIG. 15, the abdomen support pad and each elbow support pad 19 effectively support the trunk H2 of the user seated on the saddle 3 in the forwardly inclined posture together with the grip 5c. Each elbow support pad 19 is supported on a support plate 22. On the other hand, as shown in detail in FIG. 11, the abdomen support pad 18 has a bracket 18a fixedly at the upper center of the back surface of the pad 18, and the upper part of the support stand 23 is pivotally attached to this bracket 18a. I have. And this support stand
23 penetrates the support plate 22 up and down. Support stand 23
Has an appropriate pivot height adjustment hole 23a.
, The pin 24 is inserted. Pin 24 is
It is inserted through an insertion hole formed in the support plate 22. Thereby, the height position of the abdomen support pad 18 can be adjusted. On the other hand, reference numeral 26 in the figure denotes a pair of adjustment screws for adjusting the inclination angle of the abdomen support pad 18, which is screwed into a screw hole provided in the support plate 22, and the tip of which is located at the lower part of the back surface of the pad 18. I try to abut. The pad 18 rotates around the upper part of the support stand 23 as a fulcrum by the front and rear movement of each adjustment screw 26, and the inclination angle thereof is adjusted. Note that, as described above, in the present embodiment, the user performs a kick exercise in a forward leaning posture, and thus the backrest means seen in the first embodiment is omitted.

In the present embodiment, a pair of foot rods 30 are employed as step means. Each foot pedal 30 is fixed to the lower end of a pair of left and right swing arms 8. Each foot rod 30 extends inward and leftward and rightward from each swing arm 8. Each rod 30 has a stopper 10.
The user's feet are placed inside these stoppers 10. When each rod is depressed backward, the foot tends to slide outward and open the foot outward, but the stopper 10 prevents the foot from opening. The upper end of each swing arm 8 is fixed to each shaft 11. Each axis 11
It is rotatably provided on the upper part of each side stand 1d. Each shaft 11 extends from the inside to the outside of each stand 1d. Each swing arm 8 is fixed inside each shaft 11. On the other hand, the cam of each shaft 11
14 and balance weight 13 are fixed respectively. The balance weight 13 is adjusted to balance the weight of each swing arm and each stepping rod so that the stepping load becomes substantially zero.

The details of the shape of each cam 14 are shown in FIG. This cam is a plate cam, has a substantially elliptical shape as a whole, and has its base end fixed to the shaft 11. A flange 14a is provided on both sides of the free end of the cam, and a cam groove is formed therebetween. One end of a belt 17 is fixed to this cam. That is, the belt 17 is applied to the free end peripheral surface of the cam, and the fixed end 17a is fixed to the cam peripheral surface.

The belt 17 is connected to each air cylinder 2 via a pulley 16.
It is connected to. The pulley 16 is provided on each side frame member.
At the rear and outside of 1i, 1k, it is pivoted. The arrangement of each cylinder 2 is significantly different from that of the first embodiment and is fixed vertically on the bottom frame. The end of the belt 17 is the piston rod of each air cylinder 2
It is connected to the upper end of 2b. Therefore, as shown in FIG. 15, when the user kicks each foot rod 30 backward with his lower limb, the belt 17 is pulled forward and the piston rod 2b is pulled up.

How the cam shape of the cam 14 applies a load to the lower limb during the kick exercise will be described below with reference to FIGS.

FIG. 13 shows that the initial position of the cam is angled with respect to the horizontal axis.
It shows a case where the cam is rotated by 90 degrees counterclockwise in the figure together with the swing arm due to a kick motion at a position of 45 °. When the cam 14 has the illustrated cam peripheral surface shape, the relationship between the kick angle and the load applied to the lower limb is as shown by the curve shown in the graph of FIG. That is, as a whole, the load is substantially constant, but gradually increases from the initial stage of the kicking motion, reaches a peak, and then gradually decreases toward the final stage of the kicking motion. This is because the cam has an elliptical shape, so that the distance between the cam peripheral surface and the shaft 11 changes, and therefore, the movement distance of the belt 17 per unit rotation angle of the cam changes. Thereby, the kicking motion can be performed smoothly. That is, in the initial stage of the kicking motion, the load is made relatively small to make it easy to step on. And
The load is gradually increased as the depression speed increases.
Also, in the final stage of the kicking exercise, the posture is such that the lower limbs are warped rearward with respect to the trunk, so that it is difficult to apply force. For this reason, at the minimum stage, the load is relatively reduced.

Next, the structure of the air cylinder 2a will be described in detail with reference to FIG.

The air cylinder 2a includes a cylinder body and a piston 2f.
And a piston rod 2b. The cylinder body has a double wall structure. That is, the inner cylinder is 2m
And the outer cylinder 2c. The inner cylinder corresponds to a conventional cylinder body, and houses the piston 2f and the piston rod 2b so as to reciprocate. On the other hand, the outer cylinder 2c
An inner / outer cylinder space 2p is formed between the inner cylinder 2m and the inner cylinder 2m. An appropriate number of through-holes 2n are formed in the upper part of the inner cylinder 2m to communicate the inner cylinder space 2q and the inner and outer cylinder spaces 2p. The upper and lower ends of the inner and outer cylinders are closed by upper and lower plates 2d and 2e, respectively. The bottom plate 2e has a release port 2g for releasing the bottom of the inner cylinder space 2q to the outside. Further, a pressure adjusting means for adjusting the initial pressure of the inner and outer spaces 2p and the inner cylinder space 2q is provided. This pressure adjusting means allows the inside and outside space 2p to communicate with the outside,
An air pressure adjusting port 2h formed on the bottom plate 2e, a valve 2j connected to the port 2h, an air compressor 2k connected to the valve 2j, and a pressure control means for controlling the valve 2j and the air compressor 2k, that is, a control panel 7b. Comprising. The control panel 7b is fixed to the front frame member 1j.

The double-wall structure of the cylinder body as described above ultimately eliminates the need for an air tank,
This is to reduce the size of the air cylinder. This air cylinder reduces the volume of the inner cylinder and increases the volume of the outer cylinder. Now, assuming that the through-hole 2n does not exist and is closed, the cylinder moves up and down in the inner cylinder 2m due to the vertical movement of the piston caused by the kick motion of the user, and the pressure in the inner cylinder changes. . That is, the pressure increases in proportion to the increase in the amount of depression of the kick motion. In this case, the kicking motion cannot be performed smoothly. It is necessary to prevent an extreme increase in pressure in the inner cylinder. Conventionally, an air tank connected to the inner cylinder was used. On the other hand, in the present air cylinder, an outer cylinder 2c is used as a substitute for the air tank. That is, the inner cylinder space
Since 2q communicates with the inner and outer cylinder space 2p through the through hole 2n,
The large volume of fluid in the inner and outer cylinder spaces absorbs pressure changes in the inner cylinder space, and the amount of the change can be suppressed to a negligible amount by the design of the cylinder. And also the through hole 2n
Has the advantage that the opening area can be made sufficiently large and the number and shape thereof can be set arbitrarily, so that the air passage resistance of the through hole 2n can be made sufficiently small and the fluctuation of the pressure change can be made extremely small. There is. When a conventional air tank is used, the resistance of the pipeline connecting the air tank and the air cylinder is considerably large, so that the pressure change is large as compared with the air cylinder of the present embodiment.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A63B 23/04 A63B 23/00

Claims (27)

(57) [Claims] 1. A body (1), a saddle (3) mounted on the body (1), on which a user sits, and load generating means for applying a load to both lower limbs when both lower limbs of the user act. A load generating means, comprising: a pair of step means (2c, 30) on which both feet of the user are placed and which are moved in the same direction by alternate kicking backwards by both lower limbs of the user; While applying a load to the backward movement of each step means (2c, 30), when the stepping force on each step means (2c, 30) is released, each step means (2c, 30) is automatically moved forward. A kick-type training apparatus, characterized by including a load means (2a) for returning. 2. The load generating means according to claim 1, wherein the angle (θ1) formed by the trunk (H2) and the thigh (H3) when the user is seated on the saddle (3) is 100 ° to 220 °. 2. The training device according to claim 1, further comprising a first guiding means (2, 8) for guiding each step means (2c, 30) so that a kick exercise of the lower limb is performed within a certain range. 3. The training device according to claim 2, wherein the first guide means (2) guides the step means (2c) rearward along a substantially straight line. 4. The training apparatus according to claim 2, wherein the first guide means (8) guides each of the step means (30) backward along an arc. 5. The first guide means (8) is constituted by a swing arm (8), and the upper end of the swing arm (8) is pivoted to a substantially saddle level of the saddle (3) or the body (1). 5. The training device according to claim 4, wherein a step means is pivotally attached to a lower end of the swing arm. 6. A balance weight (13) is connected to an upper end of said swing arm (8).
The described training equipment. 7. The method according to claim 1, wherein the load generating means includes a knee bending angle (θ2).
A second guide for guiding each step means (2c, 30) so that the pressure is substantially constant while the step means (2c, 30) is depressed.
The training device according to claim 1, characterized in that it comprises guiding means (2, 8). 8. A handshake means (5a-5) for a user sitting on the saddle (3) to hold with both hands and stably support the trunk (H2).
The training apparatus according to claim 1, further comprising d). 9. The handshake means (5a to 5d) includes a grip (5d) directly gripped by a hand, and arms (5a to 5c) for supporting the grip so that the height position and the front-back position can be adjusted. The training device according to claim 8, characterized in that: 10. The training device according to claim 1, further comprising adjusting means (4, 4a, 4b, 4c, 4d, 1p, 1q) for adjusting the position of the saddle (3). 11. An abdominal support means (18, 22, 23, 24, 26) for supporting the trunk (H2) of the user in a forwardly inclined posture,
The abdomen support means includes an abdomen support pad (26) and a forward tilt angle adjusting means (22, 23, 23) for adjusting a forward tilt angle of the pad (26).
24. The training device according to claim 1, further comprising (24, 26). 12. The training device according to claim 1, further comprising an elbow support pad for supporting a user's elbow. 13. The saddle (3) is a saddle body (3a).
And a saddle supporter (3b) for supporting the saddle body upward.
Swing means (3b) interposed between the saddle body and the saddle support, and swinging left and right following the left and right swing of the waist generated when the user alternately exercises both lower limbs. The training device according to claim 1, further comprising: 14. The saddle (3) is a saddle body (3a).
And a saddle supporter (3b) for supporting the saddle body upward.
The training according to claim 1, characterized in that the saddle body (3a) is made of a flexible material that can follow the right and left sway of the waist generated when the user alternately exercises both lower limbs. Appliances. 15. The training apparatus according to claim 1, further comprising backrest means for stably supporting a back of a user sitting on the saddle. 16. The training device according to claim 15, wherein the backrest means includes a backrest pad (6b) and an arm (6a) for supporting the backrest pad so that the height position can be adjusted. 17. The method according to claim 17, wherein the load generating means includes a step means (2
a control means (7) for automatically returning the piston rod (2b) to the raised position together with the step means (2c, 30) when the pedal depressing force is released while the load during the depression of the step (c, 30) is made substantially constant. The training device according to claim 1, further comprising: 18. The control means (7) controls the load during stepping on the step means (2c, 30) within a substantially constant range.
And a stepping load increasing / decreasing means (7, 14) for reducing the initial stepping load and the final stepping load, gradually increasing between the initial step and the final step of the stepping, and then gradually decreasing the stepping load. 18. The training device according to claim 17. 19. A load generating means comprising a pair of step means (30) mounted on a lower end thereof and a pair of upper ends pivotally connected to substantially saddle levels of the saddle (3) or the body (1). An oscillating arm (8), and a belt (17) driven by the oscillating motion of the oscillating arm (8) and having an end connected to the load means (2a).
The training device according to claim 1, comprising: 20. The swinging arm (8) rotates with the rotation of the upper end thereof, and one end of the belt (17) is fixed, along the cam peripheral surface, and the other end is connected to the load means (2a). ) Is further provided, and the cam peripheral surface of the plate cam means (14) is provided with the step means (2).
c, 30), the load during the stepping is controlled within a substantially constant range, and the initial stepping load and the final stepping load are reduced, gradually increased between the initial stage and the final stage of the stepping, and then gradually reduced. 20. The training device according to claim 19, wherein the training device has a shape that changes. 21. The control means (7) comprises a step means (2)
18. The training apparatus according to claim 17, further comprising means (7a, 2j, 2k) for adjusting the stepping load of (c, 30). 22. A training device according to claim 1, wherein said load means comprises an air cylinder (2). 23. The step means is a pedal (2c), and the pedal is mounted on a tip of a piston rod (2b) of the air cylinder (2a).
The described training equipment. 24. The air cylinder (2a) includes a cylinder body, a piston (2f), and a piston rod (2b). The cylinder body accommodates the piston and the piston rod so as to reciprocate and slide. A cylinder (2m), an outer cylinder (2c) that forms a double cylinder together with the inner cylinder, an upper plate (2d) through which the piston rod penetrates and a lower end of the inner and outer cylinders are closed while closing the upper ends of the inner and outer cylinders A bottom plate (2) having a release port (2g) for releasing the bottom of the inner cylinder space (2q) to the outside
23. A kick-type training apparatus according to claim 22, comprising: e), and first communication means (2n) for connecting the inner and outer cylinder spaces (2p) and the inner cylinder space (2q) at their upper portions. . 25. The kick-type training apparatus according to claim 24, wherein said first communication means is a through hole (2n) formed at an upper portion of said inner cylinder (2m). 26. The training apparatus according to claim 24, further comprising a pressure adjusting means for adjusting an initial pressure between the inner and outer spaces (2p) and the inner cylinder space (2q). 27. The pressure adjusting means, wherein the inner and outer spaces (2
second communication means (2h) for communicating the p) with the outside, valve means (2j) connected to the second communication means (2h), and air compressor (2h) connected to the valve means (2j).
27. k) and pressure control means for controlling the valve means (2j) and the air compressor (2k).
The described training equipment.