KR19990077170A - Kick Type Training Equipment - Google Patents

Abstract

Kick type training equipment for training the isometric muscles of the abs and back muscles by kicking the legs backward. The mechanism comprises a body 1, saddles 3 mounted on the body 1, and load generating means for applying a load to both legs when the user's legs are acting. The load generating device includes a pair of in-situ rods 30 and rearwards of each in-situ rods 30 that are lifted by the user's feet and moved in the same direction by alternating kick movements of the rear by the user's legs. A load is applied to the movement, and upon release of the stepping force on each of the stepping rods 30, an air cylinder 2 for automatically returning each step means forward is included. The user is seated on the saddle 3, holding the grip 5d in his hand, and keeping the abdomen and elbow in contact with the abdominal support pad 18 and the elbow support pad 19, respectively, the in-situ rod 30 Do a kick kick backwards alternately left and right. The air cylinder 2 applies a load to the stepping of the leg. Thereby, the isometric muscle strength of the back muscle group and the abdominal muscle group can be effectively trained.

Description

Kick Type Training Equipment

Recently, various training apparatuses for the purpose of strengthening cardiopulmonary function and muscle strengthening have been popularized, but these are basically targeted to healthy people. Training equipment installed in the gym of the fitness club is only the best equipment for active sportsmen to build a stronger body.

However, most of those who want to exercise after becoming a member of society may be semi-healthy people. For example, those who have orthopedic dysentery, such as back pain or knee pain, those who have medical history such as hypertension or diabetes, or who are concerned about obesity or cholesterol. Yes. In this sense, the development of training equipment suitable for the semi-healthy person is urgent.

The point of strengthening isometric muscles (skeletal support) is crucial for the development of training equipment for semi-healthy people. It is medically evident that a disease represented by back pain or knee pain occurs when the isometric muscles decrease. It is also known that the biggest cause of adult disease is a decrease in basal metabolism, but its major cause is also a decrease in isometric muscle strength.

Conventionally, there are many training mechanisms for training isotonic muscle strength (= muscle strength for exercise), but no mechanism for training the isometric muscle strength is available.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a training mechanism based on a novel muscle movement principle for the purpose of strengthening isometric muscles of the abdominal muscles and abdominal muscle groups. With regard to bikes (so-called bicycle rides), a kick-type training device mainly comprising a kicking motion of a leg, that is, a linear or circular reciprocation backward.

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

2 is a use state diagram showing a state of using the training apparatus of FIG. However, the user is shown typically.

3 is an explanatory diagram illustrating a kicking exercise of the training apparatus of FIG. 1. However, the user is shown typically.

4 is a rear view of the birds of the training apparatus of FIG. 1.

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

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

9 and 10 are right and rear views respectively illustrating main parts of the saddle and its position adjusting means according to the second embodiment.

It is a right side view which shows the principal part of the abdominal support pad and its position adjustment means of 2nd Embodiment.

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

It is explanatory drawing which shows the cam shape of 2nd Embodiment and the belt tensioned by the cam.

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

Fig. 15 is an explanatory diagram illustrating the kick movement in the second embodiment.

<Description of the symbols for the main parts of the drawings>

1: body, 1a: body cover,

1d: side stand, 1e, 1g. Left and right frame members,

1f: front frame member, 1h. Rear frame member,

1j: front frame member, 1k, 1i. Left and right frame members,

1m: center front stand, 1n: saddle support frame member,

1p: saddle support bar, 1q: distance adjustment hole,

2: air cylinder, 2a: cylinder body,

2b: piston rod, 2c: pedal,

2c: outer cylinder, 2d: top plate,

2e: bottom plate, 2f: piston,

2g: release port, 2h: air pressure adjustment port,

2j: valve, 2k: air compressor,

2m: inner cylinder, 2n: through hole,

2p: internal and external space, 2q: internal and external space,

3: birds, 3a: saddle body,

3b: coil spring, 3c: saddle support,

4: support rod, 4a: screw hole,

4b: height adjustment screw, 4c: block,

4d: block, 5: handle,

5a-5c: arm part, 5d: grip,

6: backrest means, 6a: backrest arm,

6b: back pad, 6c: screw hole,

6d: height adjustment screw, 7: controller,

7a, 7b: control panel, 8: rocking arm,

10: stopper, 11: shaft,

13: balance weight, 14: cam,

14a: flange, 16: pulley,

17: belt, 17a: fixed end,

18: abdominal support pad, 18a: bracket,

19: bracket support pad, 20: bearing block,

21: guide rod, 22: support plate,

22a: pin plate, 22b: pinhole,

23: support stand, 24: pin,

26: adjusting screw, 30: stepped rod,

θ1: the angle between the trunk and thigh,

θ2: knee bending angle,

P1: straight line, P2: circular arc,

P3: arrow, P4, P5: mandrel,

H1: knee, H2: trunk,

H3: thigh, H4: lower thigh,

Therefore, the main technical problem to be solved by the present invention is to provide a new training apparatus for strengthening isometric muscle strength, especially the isometric muscle strength of the back muscles and abs muscles that are the biggest factor of back pain.

The first task is to provide a training apparatus for training the isometric muscles without difficulty, even for semi-healthy people or those with diseases of the lower back or knee.

Another problem is to provide a training apparatus that can improve the cardiopulmonary function and the basic metabolic rate, but is more efficient than conventional aerobikes and can calculate the energy consumption to a good degree.

In addition, another problem is to provide a training apparatus that can effectively strengthen the isotonic strength of the thigh and the lower thigh, which are major factors of knee pain, in addition to the strengthening of the isometric muscle strength.

Another task is to improve the coordination between the lower limb muscle group and the back muscle group during exercise. In particular, motor coordination between the tibial muscle group and other muscle groups, that is, the coordination of the tibial muscle group and the back muscle group, the tibial muscle group and the intestinal component muscle group, and the tibial muscle group and the femoral component muscle group, respectively It is to provide a training apparatus that can improve the.

In order to solve the above problems, the present invention provides a kick type training apparatus having the following configuration.

This kick type training apparatus includes a body composed of a frame or a pedestal, birds mounted on the body, and a load generating means for applying load to the user's both legs when the user's legs work. Equipped. The load generating means is a pair of step means that are placed on the user's feet and moved in the same direction by a kick movement alternately rearward by the user's legs, that is, a stepping rod or a pedal, and a rear of each step means. A load is applied to the movement, i.e., approximately linear or arcuate movement to approximately horizontal rear, inclined downward rear, or approximately inclined upward rear, while each step means forward when the stepping force on each step means is released. Preferably, it comprises a load means such as an air cylinder or a weight that automatically returns automatically.

The user sits on the saddle, alternates on both legs, and continues the movement for a period of time simply by stepping on the means. By exercising on this step means, the isometric muscle strength of the abdominal muscle group is trained, and the isometric muscle strength of the abs muscle group which is on holiday with this is also trained. After all, this strength strengthening exercise is not a stress exercise directly to the abs or abs, but can indirectly train the abs or abs by a simple, straight-forward kick exercise called before and after or up and down of the legs. In addition, as in the conventional aerobike, it is not necessary to take a forward inclined posture in which the leg position is poor, that is, a posture of forward bending of the trunk with respect to the lumbar or pelvis, and can exercise in a superior leg position. In other words, in the conventional aerobike, the upper body, that is, the trunk is bent forward with respect to the waist of the upright posture on the saddle, so that excessive force is applied to the lumbar and the muscles around the spine cause excessive tension. However, according to the training mechanism of the present invention, when the trunk portion is bent forward, the recess is also inclined forward accordingly, and in other words, the whole body is inclined forward, so that the leg position can be made superior.

Further, according to the training mechanism of the present invention, the kicking movement in the direction of the lower leg length is substantially a pendulum movement with the hip joint supported, and the driving force output from the user is a constant tension in which the leg muscles match the load. Since the degree of dependence on the center movement of the trunk portion to be performed while maintaining is high, therefore, the knee joint or the knee joint can be maintained at a substantially constant joint angle despite the exercise of applying the load to the legs. Therefore, the muscle strength exercise can be performed while avoiding those joint movements significantly. Usually, a motion pain occurs when a joint is excessively exercised.

Therefore, even if the abdominal muscles or abs are weak, or there is a waist disease, the user can enjoy the kicking exercise without exerting excessive force on the waist, knee, ankle, etc., and train their isometric muscle strength. Incidentally, it is the same as a conventional aerobike in that it means to just sit on the birds and move the legs, but the movement of the legs is essentially different. An aerobike cannot effectively train the isometric muscle force.

In addition, the kicking movement in the lower thigh axis direction efficiently absorbs the force applied to the joint portions of the knee and foot portions by the muscle groups constituting the thigh and the lower thigh, thereby greatly reducing the burden on the same joint portion. In addition, the kicking movement in the downward retracted axial direction transmits the conduction load of the exercise load to the trunk portion more linearly than other types of movement. It also speeds up the delivery of afferent information to the central nerve, which delivers nerve fibers. This means forming a quick reflex arch (= the state where the muscles play solidarity play), and plays a great role in improving the interference between the muscle groups.

In addition, according to this training mechanism, the stepping motion of the step means is a substantially linear motion, which is not a rotational motion like a conventional aerobike. Therefore, it can be comprised so that a load may be continuously applied while stepping on a step means, and an efficient cardiopulmonary exercise effect can be acquired in a short time compared with an aerobike. At the same time, the isotonic strength of the thigh and lower thigh can also be strengthened. Incidentally, in the case of the conventional aerobike, when the pedal is pressed, that is, the first half of the pedal rotation takes a predetermined load on the leg, and the second half of the pedal rotation is the inertia rotation of the pedal. Since is extremely small, the exercise loss is large, the exercise efficiency is not sufficient, and in order to obtain the cardiopulmonary exercise effect sufficiently, the exercise time needs to be relatively long.

Moreover, the kicking movement of the step means is a movement in the direction of the lower leg length, which needless to say includes a movement along a straight line, but also naturally includes a movement along a somewhat curved curve or arc. Importantly, the user's leg should be able to kick back approximately linearly.

In the training apparatus of the above-described configuration, it is preferable that the leg kick is performed in a range such that the angle between the trunk and thighs is 100 ° to 220 ° while the user is seated on the saddle. As the angle decreases, the spinal column is deformed in a straight line and stress occurs in the back muscles, which is not preferable to a person having back pain. Although different depending on the user, when the angle is about 100 ° to 110 ° or more, such a stress hardly occurs, and thus the exercise is easy. Moreover, the angle of 180 ° means that the body is upright, and the angle larger than that means the body is turned away. The kick movement of the leg, when the step means is pushed back, there is a user's individual difference, the angle of the leg moves up to about 220 degrees. The kicking motion of this leg is similar to the walking motion of the leg when climbing a certain slope. In order to obtain the said angle in the said range, it is preferable to provide the guide means which guides the movement of each step means, in order to satisfy the condition.

The above guide means may be a means for guiding each step means backward along a substantially straight line, or may be a means for guiding each step means circularly backward.

The guide means comprises a swing arm connecting a balance weight to the upper end, a mandrel of the upper end of the swing arm to approximately the saddle height of the saddle or the body, and a mandrel of the step means to the lower end of the swing arm. It can also be configured. According to this configuration, since the distance between the waist of the user and the step means is kept substantially constant during the step step movement, the knee bending angle is exactly constant.

Further, in order to satisfy the above condition, it is preferable to have means for adjusting the saddle position (front and rear position, vertical position). By adjusting the saddle position according to the user's physique, it is preferable to perform the kicking movement of the leg in a range where the trunk and thighs are formed at 100 ° to 220 ° while the user is seated on the saddle. The saddle position adjusting means may be simply a method of fixing the saddle support rod to the body with a height adjusting screw or a height adjusting pin, but may also be a method of moving the saddle support rod up and down by a hydraulic lifting device.

In addition, in order to satisfy the above conditions, it is preferable that the user sitting on the saddle further comprises a handle means for holding the trunk with both hands to stably support the trunk. In the case of kicking the leg backward, it is natural, but as a reaction of the kick motion, the trunk is moved forward. One means for supporting this reaction force is the handle means. The grip means can be composed of a grip that is directly gripped by a hand, and an arm that supports the grip so that the height position and the front and rear positions of the grip can be freely adjusted.

In addition to the grip means, it is preferable to further include abdominal support means for supporting the trunk portion of the user in a forward inclined position. The abdominal support means preferably includes an abdominal support pad, front inclination adjustment means for adjusting the front inclination degree of the pad, and means for adjusting the height. This abdominal support pad is most effective in kicking a leg while supporting the trunk of an inclined forward position.

In addition to this abdominal support pad, it is more effective to further provide an elbow support pad supporting the elbow of the user.

Further, the load generating means may include second guide means for guiding each step means such that the knee bending angle becomes substantially constant while stepping on the step means. With such a configuration, since the stretching exercise of the knee hardly occurs, no burden is placed on the knee, and therefore, even a person with a knee disease can exercise happily.

In addition, the birds are interposed between the saddle body, the saddle support for supporting the saddle body upward, and the saddle body and the saddle support, the left and right of the waist portion generated when the user alternately kicks the legs. It is preferable to further include rocking means for rocking left and right by moving according to rocking motion. The swinging means may simply be constituted by a leaf spring and a coil spring, but in addition, an air spring may be used or hydraulic transmission. In addition, the saddle body may be made of a flexible material containing a gelled material. By such a configuration, it is possible to exercise pedaling happily without generating excessive force on the waist. In addition, it is easy to keep the knee bend angle constant by swinging the recessed portion as the pedal is pressed.

In order to stably support the user's back seated on the saddle, a back support means may be provided. In order to fit the user's physique, this backrest means is also preferably constituted by a backrest pad and an arm that supports the backrest pad freely in height position adjustment.

The load generating means further includes control means for setting the load during stepping of the step means to a substantially constant value, and automatically returning the piston rod to the lifted position together with the step means when the pedaling force is released. desirable. However, in view of facilitating the kicking of the leg, it is preferable to reduce the initial load on the pedal and the final load on the pedal, and increase and decrease the number between the initial and final steps of the pedal.

The training mechanism as a preferred form of the load generating means is equipped with each step means at the lower end, while the upper end is provided with a pair of rocking arms with a mandrel at the saddle height of the saddle or the body, and a rocking motion of the rocking arm. It is preferable that the structure includes a belt which is driven by and whose end portion is connected to the load means. As the load means, a pneumatic or hydraulic cylinder, and weights conventionally used for this type of training mechanism can be employed.

Moreover, as a preferable aspect, it rotates simultaneously with the rotation of the upper end of each said rocking arm, Moreover, one end of the said belt is fixed and it follows the cam circumference surface, The other end is a plate cam means guided to the said load means. The cam circumferential surface shape of the plate cam means further includes a load during stepping on the step means in a substantially constant range, and the initial load on the pedal and the final load on the pedal are reduced, and the initial step on the pedal is performed. It is good to make the shape which controls so that it may increase and decrease after gradually increasing between a stage and a final stage.

Preferably, the control means further includes means for adjusting the load on the step means. This is to correspond to the user's fitness.

The load means is usually composed of an air cylinder. As described above, the load means may be constituted by an elastic means such as a coil spring, a hydraulic device, or a weight, but an air cylinder using air pressure is preferably used. In the case of the air cylinder, it is technically easy to configure the piston rod to return to its initial position together with the step means when the pedaling force is released. Also, while setting the load while stepping on the step means to a substantially constant value, when the stepping force is released, the piston rod acts together with the control means to voluntarily and automatically return to the initial position together with the step means. It is easy. If the step means is quickly returned to the initial position, the number of steps of the step means per unit time can be increased, and there is an advantage that the time-efficient exercise can be performed.

In addition, as an important element of muscle strengthening exercise, it has been pointed out that a constant load is continuously applied, but that the load is always a constant value while pedaling is consistent with this condition. Moreover, in this case, the energy consumption of exercise, that is, the amount of work can be calculated to a good degree. In other words, it can be computed correctly by the calculation formula of <load (force) x movement distance>. In recent years, this kind of training apparatus, it is important to specify the energy consumption per unit time. That is, in the case of the conventional aerobike, since the load varies considerably while the pedal rotates, the energy consumption cannot be accurately calculated.

The air cylinder preferably includes a cylinder body, a piston, and a piston rod, wherein the cylinder body comprises a double cylinder together with an inner cylinder for accommodating the piston and the piston rod for reciprocating sliding and an inner cylinder. Between the outer cylinder, the upper plate which closes the upper end of the inner and outer cylinder and the piston rod penetrates, the bottom plate which has a release port which seals the lower end of the inner and outer cylinder and releases the bottom of the inner cylinder space to the outside; It is good to have a configuration including a first communication means connected at the upper portion thereof.

In order to use an air cylinder as the load means and to maintain a substantially constant load during the kicking movement by the legs, it is important that the cylinder internal pressure does not fluctuate greatly due to the movement of the piston. It is necessary to use a large air cylinder or to prepare an air cylinder connected to it separately from a small cylinder. However, according to the cylinder structure of the present invention, the pressure chamber corresponding to the conventional air tank can be secured between the inner cylinder and the outer cylinder, and the size of the cylinder can be made sufficiently small.

The said connecting means is usually comprised by the through hole formed in the outer side of the said 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 means. The pressure adjusting means includes second connecting means such as a through hole for connecting the inner and outer spaces to the outside, a valve means connected to the second connecting means, an air compressor connected to the valve means, a valve means and air And pressure control means for controlling the compressor. According to this configuration, it is possible to easily control the initial pressure in the cylinder by the electric control means. On the other hand, when using a weight, it is necessary to adjust with a weight directly, and such an operation is cumbersome.

EMBODIMENT OF THE INVENTION Below, specific embodiment of this invention is described in detail based on an accompanying drawing.

1 to 4 show the entire kick type training apparatus according to the first principle embodiment of the present invention. As shown, this mechanism is provided with saddles 3 above the pedestal-shaped body 1, and the user sits on the saddle 3 as shown in Figs. Training is performed by a pair of pedal means, specifically, a kicking or stepping movement of the pedal 2c.

The saddle 3 is configured to support the saddle body 3a to the saddle support 3c with three coil springs 3b interposed therebetween. 4 shows a state of the birds viewed from the rear, one coil spring 3b is arranged in the center of the front part of the birds, the other two left and right of the rear part of the birds. Therefore, the saddle body 3a can swing back and forth, left and right with respect to the saddle support 3b.

To the left and right of the saddle 3, a pair of handle means 5a to 5d are provided to support the trunk portion H2 of the user during training. Each handle means consists of arm parts 5a-5c fixed to the left and right of the saddle support 3c, and the grip 5d supported by the arm part. The arm part is an L-shaped first arm part 5a fixed directly to the saddle support 3c, a second arm part 5c for supporting the grip 5d in an upright position, and both arm parts 5a and 5c. ) Is composed of an elbow type third arm portion 5b to which length adjustment is freely connected. Each arm 5b, 5c can adjust a position freely in the arrow Y direction and an X direction, and can adjust the height position and the front-back position of the grip 5d by this.

The back of the saddle (3) is provided with a back support means for supporting the user's trunk (H2) from the back during training. The back support means is composed of an L-shaped back arm 6a directly connected to the saddle support 3c, and a back pad 6b freely mounted on the arm. A plurality of height adjustment screw holes 6c are formed in the back arm 6a, and the height adjustment screw 6d is used to fix the pad 6b to a height suitable for the user.

The saddle 3 is supported by the body 1 to freely adjust its height position with the supporting rod 4 therebetween. The upper end of the supporting rod 4 is fixed to the bottom surface of the saddle support 3c, and the lower end is inserted into the insertion opening 1c formed in the front upper part of the body cover 1a. A plurality of screw holes 4a are formed in the support bar 4, and the height adjustment screw 4b is used to freely fix the support bar 4 to the insertion port 1c portion.

The body 1 is provided with a pair of air cylinders 2, which are load generating means for supporting each of the pedals 2c and each user's legs to be kicked along an approximately straight line in an inclined downward direction, on the left and right sides of the body. Doing. Each air cylinder 2 has the cylinder 2a and the piston rod 2b, and the pedal 2c is rotatably attached to the front-end | tip of the piston rod 2b by fixed angle range. As shown in the figure, the installation directions of the cylinder 2a and the piston rod 2b are inclined obliquely from the front upwards to the rear downwards. This inclination angle is set so that the user can appropriately press the pedal.

2, 7 shows the control apparatus briefly. This control device itself is known, and the air cylinder itself equipped with this control device is also known. With this control, the load during the pedaling is always set to a substantially constant value, and when the pedaling force is released, the piston rod can be automatically returned to the lifted position together with the pedal. . In other words, while the pedal is pressed, the load is approximately constant at any position of the stroke, and there is no change.

The control device 7 is connected to an external control panel 7a. In the drawing, the control panel 7a is provided on the lower side of the body cover 1a. Alternatively, the control panel 7a may be provided on the grip 5d instead, or may be located in front of the user seated by special supporting means. By operating this control panel, the magnitude | size of the load of the air cylinder 2 can be adjusted. In addition, by connecting the user's heart rate detection device (not shown) and the control device 7, it is possible to automatically control the load of the air cylinder in accordance with the heart rate.

Next, the use method of the kick type training apparatus of the said structure is demonstrated based on FIG. The user adjusts the saddle position according to his / her physique, and also adjusts the load of the air cylinder according to his / her physical fitness or physical condition. Thereafter, the saddle 3 is seated, the back is brought into contact with the back pad 6b, and the pedal is started alternately with the legs while holding the pair of grips 5d with both hands.

3 shows a step of descending along a substantially straight line from the ascending position to the descending position as the leg presses the pedal. In the rising position, the angle θ1 formed between the trunk H2 and the thigh H3 is preferably about 100 ° to 120 °. On the other hand, the angle θ1 at the lowered position may be 180 °, but is set at an angle larger than 180 ° in the drawing (up to about 220 °). This angle setting is determined by the setting of the height position of the saddle 3, and the rising position and the falling position of the pedal 2c. In addition, the bending angle θ2 of the knee H1 is preferably about 90 °, and this angle θ2 is preferably not varied during the time from the rising position to the falling position. Therefore, the inclination angle of the cylinder 2 is set to satisfy this request. In addition, as described above, since the saddle body 3a is swingable from side to side, as the pedal is pressed, the waist portion can move up and down in the vertical direction (Y), so that the knee bending angle θ2 is increased. You can keep it approximately constant.

Pedaling is done by moving your legs alternately. During the exercise, the trunk portion H2 can be stably supported by removing the grip 5d and leaning against the back pad 6b. By exercising the pedaling in this way, the legs are moved to move up and down inclined so that the back muscles and the abdominal muscle groups, especially the isometric muscles thereof, are trained. Of course, since the leg itself is under load, the isotonic strength of the thigh H3 and the lower thigh H4 is also trained at the same time.

This kick-type training device is erect on the saddle so that you can exercise at a superior leg position (an angle (θ1) of 90 ° or more, which does not put unnecessary stress on your back muscles), so the exercise itself is fun. In addition, the pedal step is basically an up and down movement, so there is no excessive force applied to the lower part of the waist, and if the bending angle (θ2) of the knee is kept constant, there is no joint movement of the knee. Even those who have it can make this exercise easier.

Since the above embodiment is a type in which the piston rod 2b of the air cylinder 2 is kicked obliquely downward and backward along a straight line, as described above, in the present invention, the kick direction is necessarily a geometrically rigid straight line. You don't have to follow. Although the kick direction of the piston rod 2b can be said to be a substantially straight downward rear, the modified example in the case where it is obliquely downward rear along a curve or an arc in the geometric exact sense is shown in FIG.

The basic structure of this modification is similar to that of the first embodiment, but differs in the following points. That is, each pedal 2c sticks to the tip of the piston rod 2b and sticks to the lower end of the swinging arm 8. The upper end of this arm 8 sticks to the mandrel shaft P5 at the appropriate place of the birds 3. When the pedal 2c is pressed, the arm 8 swings along the arc P2 like a pendulum, with the mandrel axis P5 as a support point. Thus, the pedal 2c moves along this arc P2.

On the other hand, the air cylinder 2 sticks the rear end of the cylinder 2a to the body 1 with a mandrel shaft P4 so as to follow the circular arc movement of the pedal 2c. Therefore, according to the position on the arc P2 of the pedal 2c, the whole air cylinder 2 oscillates suitably in the direction of the arrow P3.

According to the structure of the said modification, the movement trace of the pedal 2c is regulated by the circular arc P2 of the rocking | fluctuation of the arm 8, and the mandrel axis P5 of the arm 8 is connected to the saddle 3 Since the mandrel is approaching the waist of the user, the distance between the recess and the pedal 2c is approximately constant. Therefore, the bending angle θ2 of the knee H1 is maintained at a more constant angle compared with the case of the first embodiment, that is, when the straight line P1 is used as the movement trajectory of the pedal. have. In addition, the pedal movement is smoother because it follows a straight line.

6 to 15, a second embodiment of the present invention will be described. This 2nd Embodiment improves 1st Embodiment again, and is made to use more conveniently.

In this embodiment, the body 1 consists of a frame, and this frame consists of a pair of side stand 1d, one center front stand 1m, an upper frame, and a bottom frame. . The upper frame is composed of the front frame member 1j and the left and right frame members 1k and 1i connected to the left and right sides of the frame member 1j. On the other hand, the bottom frame is composed of a front frame member 1f, a rear frame member 1h, and left and right frame members 1e and 1g connected to the left and right sides of the frame members 1f and 1h. have. The upper and lower ends of the center front stand 1m are connected to the front frame members 1j and 1f at the upper and bottom portions.

Reference numeral 3 in the figure represents a saddle. These saddles 3 are located at approximately the center of the frame body 1, and constitute a saddle body 3a and a saddle support 3c at the bottom thereof. The saddle body 3c is formed by filling a flexible material such as urethane or gel material into the surface cover. These flexible materials have an effect similar to that of the coil spring 3b in the first embodiment. The saddle 3 is supported by the frame body freely of height adjustment with the supporting rod 4 therebetween. That is, the saddle support frame member 1n at the back side is longer than the middle portion of the center front stand 1m, and the saddle support bar 1p is attached to the frame member 1n as shown in FIGS. 9 and 10. The nests in turn are inserting into the equation. Therefore, the supporting rod 4 is inserted from above into the through hole of the block 4c fixed to the tip of the saddle supporting bar 1p. The supporting rod 4 is provided with the appropriate number of height adjustment holes 4a, while the block 4c is provided with the pin 40b which fits into these holes 4a. In this manner, the saddle support bar 1p is also provided with an appropriate number of distance adjusting holes 1q, while the saddle support frame member 1n is provided with pins 4d to be fitted into these holes 1q. . This makes it possible to adjust the height position of the saddle and the horizontal position back and forth.

On the front side of the upper frame, a support plate 22 is provided, which is supported by a pair of left and right grips 5d, a pair of left and right elbow support pads 19, and one abdominal support pad 18. It is. One end of the support plate 22 is axed to the guide rod 21. The guide rod 21 is supported by a pair of bearing blocks 21 fixed on the side support frame member 1k. Accordingly, the support plate 22 can be opened by rotating upward with the guide rod 21 as the axis, 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. The pin plate 22a is fixed to the lower surface of this other end of the support plate 22. This pin plate 22a has hit a pin (not shown) on the lower surface of the clearance adjusting plate. This pin can be embedded in the pin hole 22b formed in the line shape on the upper surface of the side frame member 1i, and the positioning of the support plate 22 before and after can be carried out. On the other hand, each grip 5d has the height adjustment freely fixed to the support plate 22 with the arm 5c in between.

As shown in FIG. 15, the abdominal support pad and each elbow support pad 19 effectively hold the trunk H2 of the user seated in the forward inclined position on the saddle 3 together with the grip 5d. I support it. Each elbow support pad 19 is supported on the support plate 22. On the other hand, as shown in detail in FIG. 11, the abdominal support pad 18 has a bracket 18a fixed to the upper center of the rear surface of the pad 18, and the bracket 18a has a support stand 23. The upper part of) is a mandrel. And this support stand 23 penetrates the support plate 22 up and down. The support stand 23 has a suitable number of height adjustment holes 23a, and the pins 24 are inserted into the holes 23a. The pin 24 is inserted through the insertion hole formed in the support plate 22. Thereby, the height position of the abdominal support pad 18 can be adjusted. In the drawing, reference numeral 26 denotes a pair of adjustment screws for adjusting the inclination angle of the abdominal support pad 18, and screwed into a screw hole provided in the support plate 22, the tip of which is lower than the surface of the pad 18. To make contact. By the forward and backward movement of each adjustment screw 26, the pad 18 is rotated by using the upper part of the support stand 23 as a support point, and the inclination angle is adjusted. In addition, as described above, in the present embodiment, the user performs the kicking movement in an obliquely forward position, and thus the backrest means shown in the first embodiment is excluded.

In the present embodiment, a pair of stepping rods 30 are employed as the step means. Each of the stepping rods 30 is fixed to the lower ends of the pair of left and right swinging arms 8. Each of the stepping rods 30 extends from the swinging arm 8 inward to the left and right horizontal directions. Each rod 30 has a stopper 10. The user's feet are to be placed inside these stoppers 10. When stepping back on each rod, the foot tends to slide outward to open the foot outward, but the stopper 10 prevents the foot from opening. The upper end of each rocking arm 8 is fixed to each shaft 11. Each of the shafts 11 is freely rotatable on the upper side of each side stand 1d. Each of the shafts 11 extends through each stand 1d from the inside to the outside. Each rocking arm 8 is fixed inside the shaft 11. On the other hand, the cam 14 and the balance weight 13 are fixed to the outer side of the stand of each shaft 11, respectively. The balance weight 13 adjusts the weight so that the load to be balanced is approximately zero with the weight of each swinging arm or each stepping rod.

Details of the shape of each cam 14 are shown in FIG. This cam is a flat cam and is generally elliptical in shape, and its base is fixed to the shaft 11. Flange 14a is provided in the both sides of the free end of a cam, and the cam groove is formed between them. One end of the belt 17 is fixed to this cam. That is, the belt 17 is brought into contact with the free end surface of the cam, and the fixed end 17a is fixed to the cam end surface.

The belt 17 is connected to each air cylinder 2 via the pulley 16. The pulleys 16 are axed on the outer side of the rear of each side frame member 1i (1k). The arrangement method of each cylinder 2 is greatly different from that of the first embodiment, and is fixed vertically on the bottom frame. The end of the belt 17 is connected to the upper end of the piston rod 2b of each air cylinder 2. Therefore, when the user kicks each of the step rods 30 backward with their legs, as shown in Fig. 15, the belt 17 is pulled forward and pulls up the piston rod 2b.

What kind of load the cam shape of the cam 14 applies to a leg during a kick movement is demonstrated below based on FIG. 13, FIG.

FIG. 13 shows a case in which the initial position of the cam is at an angle of 45 ° with respect to the horizontal axis, and the cam is rotated leftward and 90 ° in the drawing along with the swinging arm by the kicking movement. When the cam 14 has the cam circumferential surface shape shown, the relationship between the kick angle and the load applied to the leg is as shown in the curve shown in the graph of FIG. In other words, it is an approximately constant load as a whole, but gradually increases from the initial stage of the kicking to the peak, and then gradually decreases toward the final stage of the kicking. This is because the cam has an elliptical shape, and thus the distance between the cam circumferential surface and the shaft 11 changes, and therefore the moving distance of the belt 17 with respect to the unit rotation angle of the cam changes. In this way, the kick movement is performed smoothly. That is, in the initial stage of the kicking movement, the load is relatively small so that the pedal is easily stepped on. And as the acceleration accelerates to stepping on, the load is increasing. In the final stage of the kicking movement, the legs are inclined back to the back side with respect to the trunk, and thus the force is difficult to enter. For this reason, in the final stage, the load is made relatively small.

Next, the structure of the air cylinder 2 is demonstrated based on FIG.

The air cylinder 2 includes a cylinder body 2a, a piston 2f, and a piston rod 2b. The cylinder body has a double wall structure. In other words, the body of the cylinder is composed of the inner cylinder (2m) and the outer cylinder (2c). The inner cylinder corresponds to a conventional cylinder body, and accommodates the piston 2f and the piston rod 2b to reciprocally slide. On the other hand, the outer cylinder 2c forms the inner and outer cylinder space 2p between 2 m of inner cylinders. A proper number of through holes 2n are formed in the upper portion of the inner cylinder 2m to connect the inner cylinder space 2q and the inner and outer cylinder spaces 2p to communicate with each other. The upper and lower ends of the inner and outer cylinders are sealed by the upper plates 2d and the bottom plates 2e. The bottom plate 2e has a release port 2g for releasing the bottom of the inner cylinder space 2q to the outside. Further, pressure adjusting means for adjusting the initial pressure between the inner and outer spaces 2p and the inner cylinder space 2q is provided. The pressure adjusting means includes an air pressure adjusting port 2h formed in the bottom plate 2e, a valve 2j connected to the port 2h, for connecting the inner and outer spaces 2p to the outside, and allowing them to pass through. And an air compressor 2k connected to the valve 2j, and pressure control means for controlling the valve 2j and the air compressor 2k, that is, the control panel 7b. The control panel 7b is fixed to the front frame member 1j.

The double-walled structure of the cylinder body as described above can ultimately reduce the size of the air cylinder without requiring an air tank. This air cylinder has a small volume of the inner cylinder and a large volume of the outer cylinder. Now, assuming that the through hole 2n does not exist and is closed, the piston moves up and down in the inner cylinder 2m by the up and down movement of the piston generated by the user's kick movement, so that the pressure in the inner cylinder changes. In other words, the pressure is increased in the light of the increase in the amount of kicking step. In this case, it becomes impossible to perform the kicking smoothly. It is necessary to prevent extreme pressure rise in the inner cylinder. Conventionally, the air cylinder connected to an inner cylinder was used. On the other hand, in this air cylinder, the outer cylinder 2c is used as a substitute for the air tank. That is, since the inner cylinder space 2q is connected to the inner and outer cylinder space 2p with the through hole 2n interposed therebetween, the pressure change in the inner cylinder space is absorbed by the fluid of the large inner and outer cylinder space, so that the change amount is The design of the cylinder can be suppressed to a negligible extent. In addition, since the opening area of the through hole 2n can be sufficiently enlarged and the number and shape of the through hole 2n can be arbitrarily set, the air permeation resistance of the through hole 2n is sufficiently small to minimize the fluctuation of the pressure change. There is an advantage to this. In the case of using a conventional air tank, since the pipeline resistance connecting the air tank and the air cylinder is relatively large, the pressure change is large compared with the air cylinder of the present embodiment.

Claims (27)

Body (1), Saddle 3 seated by the user mounted on the body 1, In the training device is provided with a load generating means for applying a load to both legs when the user's two legs, The load generating means, A pair of step means (2c, 30) to lift the user's feet to move in the same direction by the alternating kick movement to the rear by the user's legs; A load is applied to the movement of the step means 2c and 30 to the rear, and the step means 2c and 30 are automatically returned to the front when the stepping force to the step means 2c and 30 is released. Kick type training apparatus comprising a load means (2a). The method of claim 1, wherein the load generating means, Each step means (1) so that the kicking movement of the leg is performed in a range where the angle θ1 formed between the trunk portion H2 and the thigh portion H3 becomes 100 ° to 220 ° while the user is seated on the saddle 3. Kick type training apparatus further comprises a first guide means (2, 8) for guiding 2c, 30. The method of claim 2, wherein the first guide means (2), A kick type training apparatus, characterized in that for guiding the step means (2c) to the rear in a substantially straight line. The method of claim 2, wherein the first guide means (8) Kick-type training mechanism, characterized in that for guiding each step means 30 to the rear in an arc. 5. The first guide means (8) according to claim 4, wherein the first guide means (8) consists of a swinging arm (8), the upper end of which swinging arm (8) sticks to approximately the saddle height of the saddle (3) or the body (1). And a step means (2c) attached to the lower end of the swinging arm (8). The kick type training apparatus according to claim 5, wherein a balance weight (13) is connected to an upper end of the swinging arm (8). The method of claim 1, wherein the load generating means, And second guide means (2, 8) for guiding each step means (2c, 30) such that the knee bending angle (θ2) is approximately constant while stepping on the step means (2c, 30). Kick type training equipment. The kick type training apparatus as set forth in claim 1, further comprising handle means (5a to 5d) for holding the saddle (3) with both hands to support the trunk (H2) stably. The method of claim 8, wherein the handle means (5a-5d), A kick-type training mechanism, comprising: a grip 5d held directly by the hand; and arms 5a to 5c that freely support the grip in the height position and the front and rear positions. The kick type training apparatus according to claim 1, further comprising adjusting means (4, 4a, 4b, 4c, 4d, 1p, 1q) for adjusting the position of the saddle (3). The method according to claim 1, further comprising: abdominal support means (18, 22, 23, 24, 26) for supporting the trunk portion (H2) of the user in a forward inclined position, wherein the abdominal support means includes an abdominal support pad ( 18) and a front inclination angle adjusting means (22, 23, 24, 26) for adjusting the front inclination angle of the pad (18). The kick type training apparatus according to claim 1, further comprising an elbow support pad (19) for supporting an elbow of the user. The method according to claim 1, wherein the saddle 3 is Intersection between the saddle main body 3a, the saddle support 3c supporting the saddle main body upward, and the saddle main body and the saddle support, and the left and right swings of the main part generated when the user kicks both legs alternately. Kick-type training apparatus characterized in that it further comprises a rocking means (3b) and to move left and right to move according to. The method according to claim 1, wherein the saddle 3 is A saddle body 3a and a saddle support 3c supporting the saddle body upwards, the saddle body 3a is flexible to move according to the left and right fluctuations generated when the user alternately kicks both legs. Kick type training apparatus, characterized in that composed of the material. The kick type training apparatus according to claim 1, further comprising back support means (6a to 6d) for stably supporting a back portion of a user seated on said saddle (3). The method of claim 15, wherein the backrest means, And a backrest pad (6b), and an arm (6a) for supporting the backrest pad freely in height position adjustment. The method of claim 1, wherein the load generating means, A control for setting the load while stepping on the step means 2c and 30 to a substantially constant value, and automatically returning the piston rod 2b to the lifted position together with the step means 2c and 30 when the pedaling force is released. Kick-type training apparatus, characterized in that it further comprises a means (7). The method according to claim 17, wherein the control means (7) The load during stepping on the step means 2c and 30 is in a substantially constant range, and the initial load on the step means and the final load on the step means are made smaller, and the initial step and the final step on the step means are stepped. Kick type training apparatus comprising a step means step load increase and decrease means (7, 14) for controlling to increase and decrease gradually after increasing. The method of claim 1, wherein the load generating means, Each of the step means 30 is mounted at a lower end thereof with a pair of rocking arms 8 which are mandrel to the saddle height of the saddle 3 or the body 1; A kick type training mechanism, characterized in that it is driven by the swinging motion of the swinging arm (8), and its end portion includes a belt (17) connected to the load means (2a). 20. The rotating means according to claim 19, which rotates with the rotation of the upper end of each swinging arm (8), and one end of the belt (17) is fixed along the cam circumferential surface and the other end of the load means (2a). It further comprises a plate cam means 14 is delivered to, The cam circumferential surface of the plate cam means 14 reduces the load during stepping on the step means 2c and 30 to a substantially constant range, and reduces the initial load on the step means and the final load on the step means. , The kick type training apparatus characterized in that it has a shape that is controlled to increase and decrease gradually after increasing between the initial step and the final step of stepping on the step. 18. The kick type training apparatus according to claim 17, wherein the control means (7) further comprises means (7a, 2j, 2k) for adjusting the load on the step means of the step means (2c, 30). The method of claim 1, The load means is a kick type training apparatus, characterized in that the air cylinder (2). The method of claim 22, The step means is a pedal (2c), the pedal is a kick type training mechanism, characterized in that mounted on the tip of the piston rod (2b) of the air cylinder (2). The method of claim 22, The air cylinder 2 includes a cylinder body 2a, a piston 2f, and a piston rod 2b, The cylinder body, Inner cylinder (2m) for accommodating the piston and the piston rod to reciprocate sliding, An outer cylinder 2c constituting a double barrel with an inner cylinder, An upper plate 2d through which the piston rod penetrates while closing the upper end of the inner and outer cylinders, A bottom plate 2e having a release port 2g for releasing the bottom of the inner cylinder space 2q to the outside while sealing the lower end of the inner and outer cylinders; Kick type training apparatus comprising a first connecting means (2n) for connecting the inner and outer cylinder space (2p) and the inner cylinder space (2q) and through the upper portion thereof. The method of claim 24, wherein the first connecting means, Kick type training apparatus, characterized in that the through-hole (2n) formed in the upper portion of the inner cylinder (2m). The method of claim 24, Kick-type training mechanism further comprises a pressure adjusting means for adjusting the initial pressure between the inner and outer cylinder space (2p) and the inner cylinder space (2q). The method of claim 26, wherein the pressure adjusting means, Second connection means (2h) for connecting the inner and outer cylinder space (2p) to the outside and through, A valve means 2j connected to the second connecting means 2h, An air compressor 2k connected to the valve means 2j, And a pressure control means for controlling the valve means (2j) and the air compressor (2k).