WO1997025107A1

WO1997025107A1 - Kicking type training apparatus

Info

Publication number: WO1997025107A1
Application number: PCT/JP1997/000023
Authority: WO
Inventors: Hiroshi Kasuga; Shinichiro Yoshimura
Original assignee: Hiroshi Kasuga; Shinichiro Yoshimura
Priority date: 1996-01-11
Filing date: 1997-01-09
Publication date: 1997-07-17
Also published as: CN1208357A; AU705011B2; AU1210997A; EP0878216A4; EP0878216A1; JP3137990B2; KR19990077170A; CA2242952A1

Abstract

A kicking type training apparatus for use in increasing the isometric muscle strength of the abdominal muscles and back muscles by backward kicking of lower limbs. This apparatus is provided with a body (1), a saddle (3) fixed to the body (1), and a load generator adapted to apply a load on both lower limbs of the user when these limbs act thereon. The load generator includes a pair of tread rods (30) adapted to receive both feet of the user and be moved back by the alternate backward kickings of both lower limbs of the user, and an air cylinder (2a) adapted to impart a load with respect to the backward movements of the foot rods (30), and automatically return forward these stepping means (30) when the foot rods (30) are released from the stepping force. The user sits on the saddle (3), holds grips (5d) by hand, and applies the abdomen and elbows to an abdomen support pad (18) and elbow support pads (19), respectively. The user, in this condition, kicks the foot rods (30) by the left and right lower limbs alternately. The air cylinder (2a) generates a load with respect to the stepping motions of the lower limbs. This effectively increases the isometric muscle strength of the back muscles and abdominal muscles.

Description

Description Kick-type training equipment 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, to a conventional exercise bike (so-called bicycle rowing instrument) mainly composed of lower limb rotational movement. The present invention relates to a kick-type training apparatus mainly composed of a kick movement of a lower limb, that is, a linear or circular reciprocating movement backward. 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 individuals. The training equipment set up in the fitness club of the fitness club is the best equipment for active sportsmen to build a stronger body.

However, many people who want to exercise after becoming a member of society can always be semi-healthy. For example, people who have a history of orthopedic surgery, such as low back pain and knee pain, people with an internal history of hypertension, diabetes, etc., and people who are obese and are concerned about cholesterol levels. This is an example. In this sense, there is an urgent need to develop training equipment suitable for semi-healthy people.

In developing training equipment for semi-healthy people, the perspective of strengthening isometric muscle strength (= muscle strength supporting the skeleton) is extremely important. It is medically evident that diseases such as back pain and knee pain develop when this isometric muscle strength is reduced. In addition, the greatest cause of adult disease is a decrease in basal metabolism The major cause is also the decrease in isometric muscle strength.

Conventionally, there are many training devices that train isometric muscle strength (= muscle strength for exercise), but there is no device that trains the above isometric muscle strength. Disclosure of the invention

Therefore, the main technical problem to be solved by the present invention is to provide a new training device for strengthening isometric muscle strength, in particular, the isometric muscle strength of the back muscle group and the abdominal muscle group, which is the biggest cause of low back pain. To provide.

Another challenge is to provide a training device that can comfortably exercise the above-mentioned isometric muscle strength even for a semi-healthy person or a person with a waist or knee disease.

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

A further object is to provide a training device that can effectively enhance and strengthen the isotonic muscle strength of the thigh and lower leg, which is a major cause of knee pain, in addition to the enhancement of the isometric muscle strength described above. It is.

A further challenge is to improve the 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, that is, the cochlear muscle group and the back muscle group, the cochlear muscle group and the iliac-lumbar component muscle group, and the pelvic muscle group and the thigh An object of the present invention is to provide a training device that can improve the coordination of movement with each of the constituent muscle groups.

According to the present invention, there is provided a kick-type training device having the following configuration. This kick-type training device applies a load to both the lower limbs when the body consists of a frame, a pedestal, etc., a saddle mounted on the body, and the user sits on the lower limb. Load generating means. The load generating means includes a pair of stepping means that are moved in the same direction by alternate kicking backwards by the user's lower limbs with both feet of the user being put on, that is, a stepping rod pedal and each stepping means. While a load is applied to the backward movement, that is, a substantially linear or arcuate movement substantially horizontally rearward, diagonally lower rearward, or substantially diagonally upper rearward, each step is released when the stepping force on each step means is released. It is characterized by including a load means such as an air cylinder weight for automatically returning the means 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 exercise 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 apply stress to the back and abdominal muscles, but indirectly trains the back and abdominal muscles by a substantially linear simple kick exercise that is the forward and backward or up and down exercise of the lower limbs You can do it. Furthermore, unlike the conventional exercise bike, it is not necessary to take a posture of leaning forward, which is a poor limb position, that is, a posture in which the trunk is bent forward with respect to the lower back or pelvis, and it is possible to exercise in a superior limb position. In other words, in the case of a conventional exercise bike, the upper body, that is, the torso, leans forward against the waist in an upright position on the saddle. Although there is a problem of causing muscle fatigue, according to the training device of the present invention, if the trunk is leaned forward, the waist is also leaned forward, in other words, the entire body is leaned forward. By doing so, you can achieve a superior position. Further, according to the training device of the present invention, the kick movement in the longitudinal direction of the lower leg is substantially a pendulum motion with the hip joint as a fulcrum, and the driving force output from the user is a constant value in which the lower limb muscles match the load. This is largely due to the movement of the center of gravity of the torso while maintaining the tension of the torso. Therefore, the knee and ankle joints can be maintained at a substantially constant joint angle despite the movement of applying a load to the lower limbs. Therefore, muscle exercise can be performed while largely avoiding those joint exercises. Motion pain usually occurs when a joint moves excessively.

Therefore, even if the back muscles and abdominal muscles are weak, or if there is a lower back disease, it is possible to easily perform a kick exercise without exerting excessive force on the waist, knees, ankles, etc. Strengthen muscle strength. By the way, although it is similar to a conventional air-mouthed bike in the sense that it simply moves on the saddle and moves the lower limb, the movement form of the lower limb is essentially different. With an exercise bike, the above 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 knee and foot joints by the muscle groups constituting the thigh and lower leg. Is greatly reduced. Also, 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 (= the state in which muscles perform cooperative play) is formed quickly, which is very useful for improving the inhibition of coordination between muscle groups.

Also, according to this training device, the stepping-down movement of the step means is a substantially linear movement, and is not a rotation movement of the pedal as in a conventional exercise bike. As a result, it is possible to apply a continuous load while stepping on the step means. A dynamic effect can be obtained. At the same time, it is also possible to enhance the isotonic muscle strength of the thigh and lower leg. 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 rotates by inertia, in other words, Since the load was extremely reduced, the exercise loss was large and the exercise efficiency was not sufficient, and the exercise time needed to be relatively long to obtain a sufficient cardiopulmonary exercise effect.

The kicking motion of the step means is a motion in the longitudinal direction of the lower leg, and it is needless to say that the kicking motion literally includes a motion along a straight line, but in addition, a motion along a curve or an arc having a slight bend. Of course. The point is that the user's lower limbs can be kicked almost straight back.

In the training device having the above configuration, the kick motion of the lower limb is performed within 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 preferable to configure it so that it is performed. The smaller this angle is, the less desirable it is for people with back pain because the spine deforms linearly and stresses the back muscles. Although it depends on the user, if the angle is approximately 100 ° to 110 ° or more, such a stress hardly occurs, so that the exercise becomes reasonable. The angle of 180 ° means that the body is fully upright, and the larger angle means that the body is deflected. 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 °, although there is an individual difference between users. This kick movement of the lower limb is similar to the walking movement 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 guide means may be a means for guiding each of the step means backward substantially along a straight line, or may be a 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 the body, and the stepping means being provided at the lower end of the swing arm. The means may be pivotally connected. According to this configuration, the distance 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 user's physique, the angle between the trunk and the thighs when the user is seated on the saddle is within the range of 100 ° to 220 °. However, it is preferable that kicking of lower limbs be performed. The saddle position adjusting means may simply be a method in which the saddle support rod is fixed to the body with a height adjustment screw and a height adjustment pin, but a method in which the saddle support rod is vertically moved by a hydraulic lifting device. May be.

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 with both hands to stably support the trunk. When kicking the lower limb backward, it is natural that the trunk tries to move forward as a reaction to the kicking motion. One way to support this counteraction is by means of a handshake. This handshake means can be constituted by a grip directly gripped by a hand and an arm for supporting the grip so that the height position and the front-back position can be adjusted.

In addition to this handshake means, abdominal support for supporting the user's trunk in a forward leaning position Preferably, it further comprises means. The abdomen support means preferably includes an abdomen support pad, a forward tilt angle adjusting means for adjusting the forward tilt angle of the pad, and a means for adjusting the height thereof. This abdominal support pad is the most effective for kicking the lower limbs while supporting the trunk in the forward leaning position.

In addition to this abdominal support pad, it is more effective to provide 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 the step means is depressed. With this configuration, there is almost no knee flexion / extension movement, so that no burden is imposed on the knee, and therefore, even people with knee disease can exercise easily.

Further, the saddle is provided when a saddle body, a saddle support for supporting the saddle body upward, and an intervening kick between the lower limbs of the user are interposed between 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. This swinging means can be easily constituted by 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 including a gel-like substance. By adopting such a configuration, an excessive force is not generated at the waist, and the pedal can be easily depressed. In addition, since the waist swings in response to the depression of the pedal, it becomes easy to maintain a constant bending angle of the knee.

A backrest means may be provided to stably support the back of the user sitting on the saddle. This backrest means also supports the backrest pad and the height of the backrest pad in order to adjust to the user's physique. It is good to comprise with the arm which does.

Preferably, the load generating means further includes a control means for automatically returning the piston rod to the raised position together with the step means when the pedal depressing force is released, while making the load during stepping of the step means substantially constant. Good. 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 decrease gradually thereafter.

A training apparatus as a preferred embodiment of the load generating means includes: a pair of swing arms, each of which has the above-mentioned step means attached to a lower end thereof and an upper end pivotally attached to the saddle or the substantially saddle level of the body; It is preferable that the arm be driven by the swinging movement of the arm and that the end of the arm be connected to the load means. As the loading means, a pneumatic or hydraulic cylinder, and furthermore, a conventional unit used for this type of training equipment can be used.

Further, as a preferred embodiment, a plate that rotates together with the rotation of the upper end of each of the swinging arms, and has one end of the belt fixed along the cam peripheral surface and the other end guided to the load means. A cam means is further included, and the shape of the cam peripheral surface of the plate cam means is reduced so that the load during the stepping of the step means is substantially constant and the initial stepping load and the final stepping load are reduced. The shape should be controlled so that the pressure gradually increases between the final and final stages and then gradually decreases.

The control means may further include means for adjusting a stepping load of the step means. This is to respond to the user's physical fitness.

The load means is usually constituted by an air cylinder. As described above, the load means may be an elastic means such as a coil spring, a hydraulic device, or a way. It is preferable to use an air cylinder that utilizes force and air pressure, which can also be constituted by a single unit. In the case of an air cylinder, it is technically easy to configure so that the piston rod is instantaneously returned to the initial position together with the step means when the pedal depression force is released. In addition, the load during stepping on the step means is set to a substantially constant value, and when the stepping force of the step means is released, the piston means and the step means cooperate with the control means for automatically returning to the initial position resiliently. It is easy to make it work. If the step means is configured to quickly return to the initial position, there is an advantage that the number of steps of the step means per unit time can be increased, and time-efficient exercise can be performed. It has also 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 during pedal depression is always almost constant is consistent with this condition. I have. Further, in this case, the energy consumption of exercise, in other words, the workload, can be calculated with high accuracy. In other words, it can be accurately calculated by the formula of “load (force) X movement distance”. In this type of training equipment in recent years, it is important to specify the energy consumption per unit time. By the way, in the case of conventional exercise bikes, the energy consumption could not be calculated accurately because the load during pedal rotation fluctuated considerably.

The air cylinder preferably includes a cylinder body, a piston, and a piston port. The cylinder body includes an inner cylinder that houses the biston and the biston rod so as to slide back and forth, and an inner cylinder together with the inner cylinder. An outer cylinder that constitutes a double cylinder, an upper plate that closes the upper ends of the inner and outer cylinders and through which the piston rod penetrates, and a release port that closes the lower ends of the inner and outer cylinders and releases the bottom of the inner cylinder space to the outside And a first communicating means for communicating the inner and outer cylindrical space and the inner cylindrical space at an upper portion thereof. In order to use an air-cylinder as a load means and to maintain a substantially constant load during the kicking motion of the lower limb, it is important that the cylinder pressure does not fluctuate significantly due to the movement of the piston. According to the technology, it is usually necessary to use a large-capacity air cylinder or to provide an air tank that communicates 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 provide a pressure adjusting means. The pressure adjusting means includes a second communicating means such as a through hole for communicating the inner and outer spaces to the outside, a valve means connected to the second communicating means, an air compressor connected to the valve means, a valve means, Pressure control means for controlling the air compressor. With this configuration, the initial pressure in the cylinder can be easily controlled by the electric control means. On the other hand, when using weights, it is necessary to directly adjust the way, and the operation is troublesome. BRIEF DESCRIPTION OF THE FIGURES

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 device of FIG. 1 is used. However, the users are shown schematically.

FIG. 3 is an explanatory diagram illustrating the kick exercise of the training apparatus of FIG. 1 ₍ However, the users are 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-type training device according to a modified example 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 device 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 a main part of the abdomen support pad and the position adjusting means of the abdomen support pad of the second embodiment.

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

FIG. 13 is an explanatory view 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 device according to a first basic embodiment of the present invention. As shown in the figure, 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 a kicking movement or a depressing movement of a pair of pedal means provided on the body 1, specifically, the pedal 2c. Perform training.

The saddle 3 is configured to support the saddle body 3a on the saddle support 3c via three coil springs 3b. Fig. 4 shows the saddle as viewed from the back. One of the coil springs 3b is located at the front center of the saddle, and the other two are located at the rear left and right of the saddle. Therefore, the saddle body 3a can swing back and forth and right and left with respect to the saddle support 3b.

On the left and right sides of the saddle 3, a pair of handshake means 5a to 5d for supporting the trunk H2 of the user during training is provided. Each handshake means comprises arms 5a to 5c fixed to the left and right of the saddle support 3c, and a grip 5d supported by the arms. The arm section includes an L-shaped first arm section 5a directly fixed to the saddle support 3c, a second arm section 5c for supporting the grip 5d in an upright posture, and both arm sections 5a, 5c. And an elbow-shaped third arm portion 5b for connecting the length of the arm so as to be adjustable. The positions of the arms 5b and δc can be freely adjusted by sliding in the directions of arrows Υ and X, so that the height position and the front-rear position of the grip 5d can be adjusted.

Behind saddle 3, a backrest is provided to support the user's trunk H2 during training. The backrest means is composed of 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. The backrest arm 6a is provided with a plurality of screw holes 6c for height adjustment, and the pad 6a is fixed at a height convenient for the user using height adjustment screws 6d. The saddle 3 is supported on 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 fixed to the bottom of the saddle support 3c. The lower end of is inserted into an insertion port 1c formed in the upper front part of the body push bar 1a. The support rod 4a has 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. Like that.

The body 1 supports each of the pedals 2c, and a pair of paired left and right body cylinders 2 as load generating means for each of the lower limbs of the user to kick obliquely downward and rearward along a substantially straight line. Provided. Each air cylinder 2 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. As shown in the figure, the installation direction of the cylinder 2a and the piston head 2b is obliquely inclined from the upper front to the lower rear. This inclination angle is set so that the user's pedal stepping motion is properly performed.

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 provided with the control device is also a known device. With this control device, the load while the pedal is being depressed is always kept at a substantially constant value, and when the pedal depressing force is released, the piston rod and the pedal can be automatically and elastically returned to the ascending position together with the pedal. In other words, while the pedal is being depressed, the load is substantially constant and does not fluctuate at any position of the depressed stroke.

The control device 7 is connected to an external control panel 7a. In the figure, the control panel 7a is provided on the lower side of the body push bar 1a, but instead, it is provided on the grip 5d or the user is seated by special support means. May be located before the. By operating this control panel, the magnitude of the load on the air cylinder 2 can be adjusted. In addition, a heart rate detection device (not shown) of the user is connected to the control device 7 so that air can be detected by the heart rate. -The cylinder load can be controlled automatically.

Next, a method of using the kick-type training apparatus having the above structure will be described with reference to 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. After that, the user sits on the pedal 3, puts his / her back on the backrest pad 6a, and starts alternate pedaling movement of the lower limb while holding the pair of grips 5d with both hands. Figure 3 shows the steps in which the lower limb descends along a substantially straight line from the raised position to the lowered position in response to the depression of the pedal. At the ascending position, the angle 61 between the trunk H2 and the thigh H3 is preferably about 100 ° to 120 °. On the other hand, the angle 0 1 at the descending position may be 180 °. In the force diagram, the angle is set to an angle larger than 180 ° (possibly up to about 220 °). This angle setting is determined by setting the height position of the saddle 3 and the rising position and the descending position of the pedal 2c. Further, the bending angle S2 of the knee HI is preferably about 90 °, and it is preferable that this angle 62 does not fluctuate from the ascending position to the descending position. Therefore, the inclination angle of the cylinder 2 is set so as to satisfy this requirement. In addition, 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 2 is maintained substantially constant. can do.

The pedal depression movement is performed by moving both lower limbs alternately. During exercise, the trunk H2 can be stably supported by grasping the grip 5d and hitting the back with the back pad 6b. By performing the pedal depressing exercise in this way, the back muscles and abdominal muscles, particularly the isometric muscle strength therein, are trained in conjunction with the vertical movement of the lower limbs. Of course, since the lower limb itself is loaded, the isotonic muscle strength of the thigh H 3 and the lower thigh H 4 is simultaneously increased. Trained.

This kick-type training device allows the torso to stand upright on the saddle and exercises in a superior limb position (an angle of 90 ° or more and no unnecessary stress is applied to the back muscles). It is easy. In addition, since pedaling movement is basically a vertical movement, no excessive force is applied to the waist, and if the bending angle of the knee is kept constant at 0, there is no knee joint movement. Even people with lower back or knee disease can easily do this exercise.

In the above embodiment, the piston rod 2b of the air cylinder 2 is kicked obliquely downward and rearward along a straight line. As described above, in the present invention, the kick direction is not necessarily geometrically strict. In this sense, it does not have to be along a straight line. It can be said that the kick direction of piston rod 2b is substantially linearly lower rearward, but in a strictly geometric sense, it is a modified example in which the kicking direction is obliquely lower rearward along a curve or arc. Is shown in

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

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

According to the configuration of the above modified example, the movement locus of the pedal 2c is determined by the swing of the arm 8. The trajectory is regulated by the arc P2, and the pivot P5 of the arm 8 is pivotally connected to the saddle 3 and is close to the user's waist, so the distance between the waist and the pedal 2c is approximately the same. It is constant. Therefore, the bending angle 02 of the knee HI is maintained at a more constant angle and is less likely to fluctuate as compared with the case of the first embodiment, that is, the case where the straight line P1 is used as the movement trajectory of the pedal. There is. Also, pedal movement 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 is composed of a pair of side stands 1d, one central front stand 1m, an upper frame, and a bottom frame. The upper frame includes a front frame member 1 j and left and right frame members 1 k and 1 i connected to the left and right of the frame member 1 j. On the other hand, the bottom frame is composed of a front frame member 1ί, a rear frame member lh, and left and right frame members 1e, lg connected to the left and right of these frame members 1f, 1h. The upper and lower ends of the central front stand lm are connected to the upper and lower front frame members 1 j. Reference numeral 3 in the figure indicates a saddle. The saddle 3 is located substantially at the center of the frame body 1, and includes a saddle body 3a and a saddle support 3c below the saddle body 3a. The saddle body 3a is formed by filling a soft material such as urethane foam or a gel-like substance into a front cover. 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 can be adjusted freely. That is, the saddle support frame member 1 n extends from the middle part of the center front stand lm to the back side, and this frame member 1 n As shown in 10 well, the saddle support bar 1P is nested. The support bar 4 is inserted from above into a through hole of a block 4c fixed to the tip of the saddle support bar 1p. The support rod 4a is provided with an appropriate number of height adjustment holes 4a, while the block 4c is provided with pins 40b inserted into those holes 4a. Similarly, the saddle support bar 1p also has an appropriate number of distance adjustment holes 1Q, while the saddle support frame member 1n has pins 4d to be inserted into these holes 1Q. This makes it possible to adjust the height position of the saddle and the front-back position in the horizontal direction.

A support plate 22 is provided above and on the front side of the upper frame, and a pair of left and right grips 5d, a pair of left and right elbow support pads 19, and one abdominal support pad 18 are provided on the support plate. And support. One end of the support plate 22 is pivotally connected to the guide rod 21. The guide rod 21 is supported by a pair of bearing blocks 20 fixed on the side support frame member 1k so as to be movable forward and backward. Therefore, the guide rod 21 can be opened by rotating upward around the guide rod 21 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 22 a is fixed to the lower surface of the other end of the support plate 22. The pin plate 22a is formed by projecting a pin (not shown) on the lower surface of the gap adjusting plate. The pin is linearly formed on the upper surface of the side frame member 1i. The support plate 22 is adapted to be fitted into the formed pin hole 22 b so that the front and rear positions of the support plate 22 can be determined. Each grip 5d is fixed to the support plate 22 via an arm 5c so that the height can be adjusted.

The abdominal support pad and each elbow support pad 19, as shown well in Fig. 15, are effective for the torso H2 of the user sitting on the saddle 3 in a forward leaning posture, together with the grip 5c. It is something that supports it. Each elbow support pad 19 supports support plate 2 Support on two. 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 rear surface of the pad 18, and this bracket 18a support stand 2 3 and _c of being pivotally attached to the upper, the support stand 2 3 penetrates the support plate 2 2 up and down. The support stand 23 has an appropriate number of height adjustment holes 23a, and a pin 24 is inserted into each of the holes 23a. The pin 24 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 abdominal support pad 18, which is screwed into a screw hole provided in the support plate 22, and the tip of which is a pad. 18 so that it contacts the lower part of the back. By moving the adjusting screws 26 back and forth, the pad 18 rotates about the upper part of the support stand 23 as a fulcrum, and its inclination angle is adjusted. Contact name as described above, in the present embodiment, since the user is Due to the fact that the kick motion leaning forward, in the _c present embodiment backrest means seen in the first embodiment is excluded, A pair of foot rods 30 are used as step means. Each foot rod 30 is fixed to the lower end of a pair of left and right swing arms 8. Each of the stepping rods 30 extends inward and horizontally from the respective driving arm 8. Each mouth 30 has a stopper 10. The user's feet are to be placed inside these stoppers 10. When each mouth pad is depressed backward, the foot slides outward and tends to 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 axis 11. Each shaft 11 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 1 d. Each swing arm 8 is fixed inside each shaft 11. On the other hand, on each axis 1 1 And the balance weights 13 are fixed respectively. The weight of the balance weight 13 is adjusted so that the stepping load becomes substantially zero by balancing with the weight of each swing arm and each stepping pad.

Details of the shape of each cam 14 are shown in FIG. This cam is a plate cam and has a substantially elliptical shape as a whole, and its base end is fixed to the shaft 11. Flanges 14a are 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. The bully 16 is pivotally mounted on the rear and outside of each of the side frame members 1 i and 1 k. 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 connected to the upper end of the piston rod 2 b of each of the paired cylinders 2. Therefore, as shown in Fig. 15, when the user kicks each foot pad 30 backward with his lower limb, the belt 1Ί is pulled forward, and the bistro rod 2b is pulled. Will be raised.

The following describes how the cam shape of the cam 14 applies a load to the lower limb during the kick exercise, based on FIGS. 13 and 14. FIG.

In Fig. 13, the initial position of the cam is at an angle of 45 ° with respect to the horizontal axis, and the cam moves 90 degrees counterclockwise with the moving arm due to the kick motion. This shows the case where the rotation is performed. 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. In other words, the load as a whole is almost constant, but it gradually increases from the initial stage of the kicking motion, reaches a peak, and then increases. Decrement towards the final stage of exercise. This is because the cam shape is elliptical, so that the distance between the cam peripheral surface and the chain 11 changes, and therefore, the movement distance of the belt 17 with respect to the 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 relatively small so that the driver can easily step on the ball. Then, the load is increased as the stepping-in speed increases. Also, in the final stage of the kick exercise, 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 small.

Next, the structure of the air cylinder 2a will be described in detail with reference to FIGS. The air cylinder 2a includes a cylinder body, a piston 2f, and a piston rod 2b. The cylinder body has a double wall structure. That is, the cylinder is composed of the inner cylinder 2 m and the outer cylinder 2 c. The inner cylinder corresponds to a conventional cylinder body, and houses the piston 2 上記 and the piston rod 2 b so as to reciprocate. On the other hand, the outer cylinder 2c forms an inner and outer cylinder space 2p between the outer cylinder 2c and the inner cylinder 2m. An appropriate number of through-holes 2 n are formed in the upper part of the inner cylinder 2 m to communicate the inner cylinder space 2 q with the inner and outer cylinder space 2 p. 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 is connected to an air pressure adjusting port 2 h formed in the bottom plate 2 e, a valve 2 j connected to the port 2 h, and a valve 2 j to connect the inside and outside space 2 p to the outside. And a pressure control means for controlling the valve 2j and the air compressor 2k, that is, a control panel 7b. The control panel 7b is fixed to the front frame member 1j. The reason why the cylinder body has a double wall structure as described above is to ultimately eliminate the need for an air tank and 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 2 n does not exist and is closed, the cylinder moves up and down within 2 m of the inner cylinder due to the vertical movement of the piston caused by the kicking motion of the user, and the pressure in the inner cylinder is increased. Change. In other words, the pressure increases in proportion to the increase in the amount of kick motion. In this case, it is impossible to perform the kick motion smoothly. It is necessary to prevent extreme pressure rise in the inner cylinder. Conventionally, an air tank connected to the inner cylinder was used. On the other hand, in this air cylinder, an outer cylinder 2c is used as an alternative to the air tank. That is, since the inner cylinder space 2q communicates with the inner and outer cylinder spaces 2p through the through holes 2n, the large volume of fluid in the inner and outer cylinder spaces absorbs pressure changes in the inner cylinder space, and the change The amount can be reduced to a negligible amount by the design of the cylinder. Further, since the opening area of the through-hole 2 n can be made sufficiently large, and the number and shape of the through-hole 2 n can be set arbitrarily, the air passage resistance of the through-hole 2 n is made sufficiently small, and the pressure change There is an advantage that the fluctuation can be made extremely small. When a conventional air tank was used, the line resistance connecting the air tank and the air cylinder was considerably large, so that the pressure change was large compared to the air cylinder of the present embodiment.

Claims

The scope of the claims

1. Body (1)

A training device comprising a saddle (3) mounted on a body (1), on which a user sits, and a load generating means for applying a load to both lower limbs when both lower limbs of the user work,

The load generating means is

A pair of step means (2c, 30), which are carried by the user's feet and moved in the same direction by alternate kicking backwards by the user's lower limbs;

While applying a load to the backward movement of each step means (2c, 30), when releasing the stepping force on each step means (2c, 30), move each step means (2c.30) forward. (2a) A kick-type training apparatus characterized in that it includes:

2. The load generating means has an angle (61) between the trunk (H2) and the thigh (H3) of 100 ° to 220 ° when the user is seated on the saddle (3). 2. The training according to claim 1, further comprising a first guide means (2, 8) for guiding each step means (2c, 30) so that the lower limb can perform a kicking motion. Appliances.

3. The training device according to claim 2, wherein the first guide means (2) guides each of the step means (2c) backward substantially along a straight line.

4. The training according to claim 2, wherein the first guide means (8) guides each of the step means (30) backward along an arc. Is composed of a swing arm (8). The upper end of the moving arm (8) is pivotally attached to the saddle (3) or the substantially saddle level of the body (1), and the step means (2c) is pivotally attached to the lower end of the moving arm (8). The training device according to claim 4, characterized in that:

6. The training device according to claim 5, wherein a balance weight (13) is strongly connected to an upper end of the swing arm (8).

7. The above-mentioned load generating means is a second guide for guiding each step means (2C30) so that the knee bending angle (02) is substantially constant during stepping on each of the above step means (2c, 30). A training device according to claim 1, characterized in that it comprises means (2, 8).

8. The key according to claim 1, further comprising handshake means (5a to 5d) for a user sitting on the saddle (3) to hold with both hands and stably support the trunk (H2). Training equipment

9. The handshake means (5a to 5d) is composed of a grip (5d) that is directly held by a hand and an arm (5a to 5c) that supports the grip so that the height position and the front-back position can be adjusted. 9. The training device according to claim 8, comprising:

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. It further comprises abdominal support means (1 8, 22, 23, 24, 26) for supporting the trunk (H2) of the user in a forward leaning posture, and the abdominal support means comprises an abdominal support pad (26). The training instrument according to claim 1, further comprising: a forward tilt angle adjusting means (22, 23, 24, 26) for adjusting a forward tilt angle of the pad (26).

12. The training device according to claim 1, further comprising an elbow support pad (19) for supporting a user's elbow.

13. The saddle (3) includes a saddle body (3a), a saddle support (3b) for supporting the saddle body upward, and a user interposed between the saddle body and the saddle support. The training device according to claim 1, further comprising: a swinging means (3b) that swings left and right following right and left swinging of the waist generated during the alternate kick exercise of both lower limbs.

14. The saddle (3) includes a saddle body (3a) and a saddle support (3b) for supporting the saddle body upward. The saddle body (3a) and the lower limbs of the user alternately. 2. The training device according to claim 1, wherein the training device is made of a flexible material capable of following the right and left sway of the waist generated during the kick exercise.

B o

15. The training device according to claim 1, further comprising backrest means (6a to 6d) for stably supporting the back of the user seated on the saddle (3).

16. The training apparatus 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 load generating means sets the load during stepping on the step means (2c, 30) to a substantially constant value, while releasing the pedal depressing force, the piston rod (2b) is connected to the stepping means (2c, 30). The training device according to claim 1, further comprising control means (7) for automatically returning to the ascending position together with (30).

18. The control means (7) reduces the load during stepping on the step means (2c, 30) within a substantially constant range, and reduces the initial stepping load and the final stepping load. It includes a stepping load increasing / decreasing means (7, 14) for increasing gradually between the initial stage and the final stage, and then controlling to decrease gradually. 18. The training device according to claim 17, wherein

19. The above load generation means

A pair of swing arms (8) pivotally connected to the saddle (3) or the body (1) at substantially the same saddle level as the upper end thereof, while each of the step means (30) is attached to the lower end;

A belt (17) driven by the swinging motion of the swinging arm (8) and having an end connected to the loading means (2a). Training equipment.

Two

20. The belt (17) rotates with the rotation of the upper end of each swing arm (8), and has one end of the belt (17) fixed along the cam peripheral surface and the other end connected to the load means (2a). Further comprising a plate cam means (14) guided to

The cam peripheral surface of the plate cam means (14) reduces the load during the stepping of the step means (2c30) within a substantially constant range, and reduces the initial stepping load and the final stepping load. 20. The training device according to claim 19, wherein the training device has a shape that is controlled so as to be gradually increased between an initial stage and a final stage and then gradually reduced.

21. The key training according to claim 17, characterized in that the control means (7) further comprises means (7a, 2j, 2k) for adjusting the stepping load of the step means (2c, 30). Utensil

22. Training apparatus according to claim 1, characterized in that said loading means comprises an air cylinder (2).

23. The training apparatus according to claim 22, wherein the step means is a pedal (2c), and the pedal is mounted on a tip of a biston rod (2b) of the air cylinder (2a).

24. The air cylinder (2a) includes a cylinder body, a piston (2mm), and a piston rod (2b).

The cylinder body is

An inner cylinder (2m) for storing the above biston and biston rod to slide back and forth,

An outer cylinder (2c) that forms a double cylinder together with the inner cylinder,

Close the upper ends of the inner and outer cylinders, and connect the upper plate (2d) through which the piston rod passes.

A bottom plate (2 e) having a release port (2 g) for closing the lower ends of the inner and outer cylinders and releasing the bottom of the inner cylinder space (2 q) to the outside;

23. The kick-type training apparatus according to claim 22, further comprising: first communication means (2n) for connecting the inner and outer cylinder spaces (2p) and the inner cylinder space (2Q) at an upper portion thereof.

25. The kick-type training according to claim 24, wherein the first communication means is a through hole (2n) formed at an upper portion of the inner cylinder (2m).

26. The training device according to claim 24, further comprising pressure adjusting means for adjusting an initial pressure between the inner and outer spaces (2p) and the inner cylinder space (2d).

27. The pressure adjusting means includes: a second communicating means (2 h) for communicating the inner and outer spaces (2 p) with the outside;

Valve means (2 j) connected to the second communication means (2h);

27. The training according to claim 26, comprising an air compressor (2k) connected to the valve means (2j), and pressure control means for controlling the valve means (2j) and the air compressor (2k). Appliances.