JP2001327627A - Exercise apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exercise apparatus capable of realizing a movement more approximate to walking and requiring no large setting space. SOLUTION: A pedal 7 guided by a circular rail 5 approximate to the locus of the toe in walking of a person and longitudinally moved is constituted rockably around a shaft provided on the front end, and a load to the rocking is imparted by a spring provided in the inner part. A forward force acts on the pedal 7 by a spring 70 connected to the pedal 7. The circumferential length of the rail 5 is longer in the front part from the bottom point than the rear part. The other pedal 8 is constituted in the same manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exercise machine for performing exercise simulating walking (walking) in a general home, a sports gym, or the like, and more particularly, to a pedal moving mechanism thereof.

[0002]

2. Description of the Related Art (First Prior Art) Conventionally, as such exercise equipment, there is a so-called stepper 200 for the purpose of stepping exercise as shown in FIG.

In the stepper 200, a pedal 207 is supported by a base frame 201 so as to be swingable about a shaft 209 provided in the front (the same applies to the pedal 208). Lower surface of pedal 207 and base frame 201
A load device including a hydraulic type cylinder 202 is provided between the cylinder 202 and the pedal 207. The pedal 207 is connected to a rod 202a interlocked with a piston of the cylinder 202.
Similarly, the pedal 208 is connected to the cylinder by a rod that is interlocked with the same mechanism as the pedal 207. A pedal 2 is connected to a lower part of the front of the left and right pedals 207 and 208 by wires via pulleys (not shown).
07 and the pedal 208, when one of the pedals is depressed, the other pedal is lifted. The user can use the base frame 2
01 Grasp the handle 204 supported by the handle post 203 erected in front, put a foot on a pedal that moves up and down alternately left and right, and perform a stepping motion.

(Second Prior Art) There is also an exercise machine as shown in FIG.

[0005] The exercise equipment 300 is an apparatus simulating exercise when walking while walking on skis. Two rails 305, 306 are attached in parallel to a base frame 301 placed on the floor, and pedals 307, 308 are mounted so as to be movable back and forth along the respective rails 305, 306. I have. The user grasps the handle above the handle post 303 erected in front of the base frame 301 and puts each foot on the two pedals 307 and 308 to move forward and backward to exercise.

(Third Prior Art) Also, exercise equipment 300
And a rail 40 as shown in FIG.
There is also an exercise equipment 400 in which 5,406 has an arc shape. In such an exercise device 400, since the movement of the pedals 307 and 308 is regulated along the arc-shaped rails 405 and 406, the exercise simulating walking can be performed.

(Fourth Prior Art) As a conventional exercise equipment, there is also an exercise equipment 500 as shown in FIG.

The two U-shaped frames 501 and 502 are assembled so as to rotate about the ends on the opening side of each other, and are installed in an inverted V-shape such that the rotating part is located upward. An inverted V-shaped handle 503 extending upward is provided between the rotating parts. In addition, rod-shaped pedal posts 504 and 505 extending vertically downward are provided on each of the rotating portions so as to be swingable.
5, pedals 507 and 508 are attached one by one. Here, the pedal posts 504, 505
Performs an arc movement back and forth about the rotating part. The user puts both feet on the pedals 507 and 508, swings the left and right feet alternately, and swings down alternately,
Performs a movement simulating walking while drawing an arc-shaped trajectory.

(Fifth Prior Art) As a conventional exercise apparatus, there is one as shown in FIG.

In the exercise equipment 600, the base frame 60
The shaft members 603a and 603b projecting from both sides of the lower part of the handle post 603 erected in front of
Bar-shaped handles 604 and 605 are pivotally supported on the right and left, respectively. Grip portions 604a, 605a are provided above the handles 604, 605, and front ends of pedal support members 607, 608 are swingably connected to the opposite sides of the swing portions from the grip portions 604a, 605a. . The pedal support member 607, 608 has pedals 607a, 608a on a plate-shaped portion provided in front,
At the rear, there are provided elliptical motion mechanisms 607b and 608b.
The elliptical motion mechanisms 607b and 608b are provided with a swinging movement of the distal end portions of the pedal support members 607 and 608 with respect to the shaft members 603a and 603b and a downward stepping action acting on the pedals 607a and 608a at the rear of the base frame 601. A mechanism for converting the elliptical motion of the pedal support members 607 and 608 with respect to the axle is accommodated.

The user places his / her feet on pedals 607a and 608a and grips 604 of handles 604 and 605.
a, 605a, and the left and right handles 604, 605 are alternately moved back and forth.
a, the pedals 607a, 607
8a is made to perform an elliptical motion.

[0012]

However, the exercises simulated in the exercise apparatus 200 according to the first prior art are stair climbing exercises and stepping exercises.

In the stepping motion, the amount of one motion is large, but the motion is restricted only in the vertical direction which is the direction in which the trunk is moved up and down, so that a compressive force due to gravity acts on the knees and hips. For this reason, excessive use for a long time tends to cause a burden on knees and joints.

[0014] Human walking is a comprehensive exercise in which the muscles involved in bending and stretching the legs are used in a well-balanced manner.
That is, when the moment of the force acting on the hip joint, the knee joint, and the ankle joint during actual walking is measured, FIG.
As shown in (c), the moment is reversed during one cycle of walking. Therefore, at the time of walking, the muscle acts so as to generate the moment of the force in the direction opposite to the moment of the force described above. On the other hand, in the stepping motion and the stair climbing motion, the moment of the force acting on the joint does not reverse, and the activity concentrates on the muscle extending the knee joint.
For this reason, biased fatigue tends to accumulate and is not suitable for prolonged exercise.

When the pedal moves only in the front-back direction as in the second, third, and fourth prior arts, the movement simulated is a skiing movement. Since such a skiing motion is a motion of swinging the legs back and forth, a motion relatively similar to walking can be realized. However, as shown in FIG. 35, when the toes move from the front to the back and when they move from the back to the front, they pass through the same path, so that a period in which the soles separate from the ground as in walking is not formed. For this reason, it was an unnatural exercise in which the user felt uncomfortable during use.

In the fifth prior art, the pedal 607 is used.
a, a large mechanism was required to make the 608a move elliptically, and a large area was required for installation.

The present invention has been made in order to solve the problems of the prior art, and an object of the present invention is to provide an exercise apparatus which can realize a motion approximate to walking and does not require a large installation space. To provide.

[0018]

In order to achieve the above object, the present invention provides two foot placing means on which a user places a foot, and guides the movement of the foot placing means in the front-rear direction. And a guide unit, wherein the foot placement unit moves according to the guide unit, wherein the foot placement unit moves according to the guide unit. A foot rest portion for contacting the foot; and a posture variable support means for supporting the foot rest portion with respect to the base so that the posture can be changed.

With this arrangement, when exercising using the exercise equipment, the foot does not fall into a shuffling state in which the entire foot moves along the guide means, and the foot rests on the foot rest while the foot rests on the foot placement means. On the other hand, the angle of the heel can be changed, and a movement that approximates actual walking can be performed. Further, since the means for changing the posture of the foot is provided in the foot placement means itself, the foot mounting means does not occupy a large space and can be reduced in size.

Further, the posture variable support means includes a shaft supporting means for pivotally supporting the foot mounting portion with respect to the base portion, and a support between the base portion and the foot mounting portion. It is preferable to include an urging means which is interposed between the base and the urging means for urging the base portion and the foot rest portion in directions away from each other.

As such an urging means, a spring, a cylinder, a bellows or the like can be used.

Further, it is preferable that the foot placement means includes a posture change load means for applying a load to the posture change of the foot placement portion.

In this way, the stepping motion can be realized in addition to the forward and backward motion.

Further, the posture change load means may be capable of adjusting a magnitude of a load with respect to a change in posture of the footrest.

It is preferable that the apparatus further includes a forward / backward moving load unit that applies a load to the forward / backward movement by applying a forward force to the foot placing unit.

In this way, a load is applied to move the foot which has been stepped forward in the process of kicking it backward, against the forward force acting on the foot placing means. In the process of returning the kicked-out foot to the front, the movement of the foot is assisted by the forward force acting on the foot placing means, so that a movement more similar to actual walking can be performed.

[0027] Further, an adjusting means for adjusting the magnitude of the force acting on the foot placing means by the forward and backward moving load means may be provided.

The forward / backward moving load means changes the direction of a spring to be extended, a wire connecting the foot mounting means and the spring, and the wire pulled forward from the foot mounting means. And a pulley leading to the spring.

The forward / backward moving load means includes a foot placement means pulley on which a first wire having one end connected to the foot placement means is wound and the other end of the wire is locked. A second wire having one end connected to the spring is wound around the other end of the wire and a spring-side pulley, and the foot placement means-side pulley and the spring-side pulley have the same rotation center. And a pulley supporting means rotatably supported around the pulley.

With this configuration, the amount of movement of the foot placing means is determined according to the amount of movement of the first wire, and the amount of expansion and contraction of the spring is determined according to the amount of movement of the second wire. By adjusting the ratio of the radius of the pulley on the foot placement unit side to the radius of the pulley on the spring side, the relationship between the amount of movement of the foot placement unit and the amount of expansion and contraction of the spring can be adjusted.

The forward and backward movement load means connects a cylinder which generates an attractive force by a negative pressure generated in a working fluid, the cylinder and the foot mounting means, and applies the attractive force of the cylinder to the foot mounting means. And a force transmitting means acting from the front.

Further, the guide means may have a track member extending along the moving direction of the foot placing means.

The shape of the guide means in the front-rear direction is as follows:
In a coordinate system fixed to the hip joint, it is preferable to form an arc shape that approximates a trajectory drawn by a human foot when walking.

This makes it possible to perform a motion that is more similar to actual walking.

Preferably, the arc shape of the guide means is such that the circumference from the lowest point to the front end is longer than the circumference from the lowest point to the rear end in the vertical direction.

In this way, the circumference of the guide means can be made the minimum length necessary for realizing a motion that approximates the motion during actual walking, and the size can be further reduced.

[0037]

(First Embodiment) A first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an exercise machine 1 according to an embodiment of the present invention.
1 is an overall perspective view from the right front of FIG. FIG. 2 is an overall perspective view from the left rear side. 3 is a side view, FIG. 4 is a front view, and FIG. 5 is a top view.

The exercise equipment 1 mainly comprises a base frame 2, a handle post 33, a handle, rails 5, 6, pedals 7, 8 and a load mechanism 9.

The base frame 2 has a structure in which a rectangular pillar-shaped bridge member 13 extending in the front-rear direction is joined between a front leg support portion 11 and a rear leg support portion 12 extending in the right and left directions and having a rectangular column shape. It has become. Front leg support 11
And a leg 1 in contact with the floor surface on both lower surfaces of both ends of the rear leg supporting portion 12.
1a, 11b, 12a, and 12b are provided. In addition, rollers 11c and 11d are provided at both ends of the front surface of the front leg support portion 11 so that the handle post 3 can be easily moved when the handle post 3 is folded and the front surface stands on the floor. .

At the center of the front leg support portion 11 of the base frame 2, a prism-shaped handle post 3 having a substantially rectangular cross section is provided upright. The handle post 3 has a divided structure of a base portion 14 joined to the front leg support portion 11 and a handle support portion 15, and is fixed and supported by a joint portion 16.

The joint 16 is a plate-shaped member joined to the base 14 of the handle post 3 and bent in a substantially U-shape. At the bottom exposed to the front of the exercise equipment, there is provided a leg 16a which comes into contact with the floor when the handle post 3 is folded upright from the joint 16 and stands upright. Also,
Elongated holes 16b in the vertical direction are formed on both side surfaces of the joint portion 16, and projections 15a provided on both side surfaces of the handle support portion 15 of the handle post 3 are fitted (see FIG. 3). A fixing screw 1 is provided at the lower front end of the handle support 15.
5b is screwed. When the entire handle post 3 is erected, the protrusions 15 a on both side surfaces of the handle support 15 are in contact with the lower end of the long hole 16 b of the joint 16. At this time, the shaft of the fixing screw 15b is
6, by fitting the notch provided on the upper edge of the bottom of the bottom, tightening the fixing screw 15b, and sandwiching the edge of the notch between the head of the fixing screw 15b and the front surface of the handle support.
The handle support 15 and the base 14 are fixed. When the fixing screw 15b is loosened and the handle support 15 is lifted upward, the protrusions 15a on both side surfaces move along the long holes 16a of the joint portion 16, and the handle support 15 is folded rearward around the protrusion 15b as an axis. Can be.

Handle support 1 above handle post 3
At the upper end of 5, a support hole penetrating in the left-right direction is established,
The handle 4 is inserted. A handle fixing screw 17 is provided so that the shaft portion passes through the upper end surface of the handle support portion 15, and the handle 4 is moved through the handle portion by passing the shaft portion through a hole provided in the center portion of the handle. It is fixed to.

The handle 4 has a substantially C-shape, and its open ends are bent to face each other and to be aligned.

The support arms 18 and 19 projecting from both sides of the base of the handle post 3 are respectively provided with rails 5 and 6 each having a substantially rectangular cross section and having a substantially rectangular cross section. It is supported by pedestals 20, 21 protruding from the upper surface. Each of the rails 5 and 6 is curved so as to protrude downward from the front to the rear. Here, the rail constitutes a guide means and a track member.

FIG. 6 is an exploded perspective view showing each component of the pedal (foot placement means) 7.

The pedal 7 mainly comprises a pedestal bracket 22 attached to the rail 5, a base bracket 23 fixed on the pedestal bracket 22, a movable bracket 25 pivotally attached to the base bracket, and a pedal board 25a. You. Hereinafter, only the pedal 7 will be described, but the description of the pedal 8 will be omitted since the pedal 8 has the same configuration.

The movable bracket 25 has a shape in which the edge of a long rectangular plate-like member is bent back and forth. The short side edge of the movable bracket 25 is bent downward at a substantially right angle along the end side, and a hole through which the pedal vertical movement shaft 26 is inserted is formed at the front end of the bent portion. ,
Screw holes are provided for attaching side covers. Also,
The front edge of the movable bracket 25 is curved downward.

A substantially rectangular thick plate-shaped pedal board 25a is mounted on the upper surface of the movable bracket 25. The front end portion of the pedal board 25a is formed to be thick, and the inner end surface has an arc shape, and functions as a stopper for a leg placed on the pedal board 25a.

On both sides of the movable bracket 25,
The substantially triangular side covers 27a and 27b are attached.

The base bracket 24 is a rectangular plate member that is long in the front and rear direction, and has both side edges in the short direction bent upward at substantially right angles. At the front end of the bent portion, there is formed a hole through which a pedal vertical movement shaft is inserted 26. On the upper surface of the base bracket 24, a stopper mounting portion 28 is provided. The stopper 29 is made of an elastic material such as rubber, and restricts the downward movement of the swinging movable bracket 25 and reduces the impact when the stopper comes into contact. In addition, the movable bracket 25 is attached to the end face of the stopper mounting portion 28.
A spring 30 for urging the stopper upward is also attached.
8 supported. The upper end of the spring 30 engages with a cylindrical projection 31 provided on the lower surface of the movable bracket 25.

The pedestal bracket 23 has a substantially rectangular parallelepiped box-shaped upper roller supporting portion 23a from which the lower wide surface facing the rail 5 has been removed. And a plate-like lower roller supporting portion 23b opposed to the rail 5 with the rail 5 interposed therebetween. Upper rollers 32, 33 are rotatably supported on the shaft via bearings between both lateral sides of the upper roller support 23a in the short direction. The upper rollers 32, 33 are connected to the front end of the upper roller support 23a and One at the rear end. The upper rollers 32, 33 have a substantially cylindrical shape whose surface is covered with urethane rubber, but have flange portions 32a, 33a projecting radially at upper and lower ends in the axial direction.
32b, 33a and 33b are formed. On the front side between the lower roller supporting portions 23b, 23b, a substantially U-shaped stopper mounting base 34 is mounted so as to open rearward. A stopper 35 made of an elastic material such as rubber is attached to the front surface of the stopper mount 34. Lower roller support 23
Similarly, a substantially U-shaped stopper mounting base 36 is mounted on the rear side between b and 23b so as to open forward, and a stopper 37 made of an elastic material such as rubber is provided on the rear surface of the stopper mounting base 36. It is attached. Rear stopper mount 3
A wire fixing shaft 38 is supported between the lower roller support portions 23b, 23b below the lower roller 6. A lower roller shaft 39 is mounted between substantially the center portions of the lower roller support portions 23b, and a cylindrical lower roller 40 is rotatably supported around the lower roller shaft.

Here, the pedestal bracket 23, the members included therein, and the base bracket 24 constitute a base portion, and the movable bracket 25 and the pedal board 25a constitute a foot rest portion. The pedal up / down movement shaft constitutes a shaft supporting means, and the spring 30 constitutes an urging means, and both constitute a posture variable supporting means. The spring 30 constitutes a posture changing load unit.

7 to 9 show the assembled pedals 7 and 8, FIG. 7 is a front view, FIG. 8 is a rear view, and FIG. 9 is a perspective view from the back. FIGS. 10 and 11 show a perspective view and a side view from the front with the side covers of the assembled pedals 7 and 8 removed. FIG.
13 respectively show the same sectional views.

The movable bracket 25 is pivotally supported at its front end so as to be swingable, and is urged from below by a spring 30 interposed between the movable bracket 25 and the base bracket 24. Therefore, the pedals 7 and 8 can be depressed against the urging force of the spring until the stopper 29 contacts the lower surface of the movable bracket 25. Movable bracket 2
5 and the base bracket 24 have side covers 2
7a and 27b.

FIG. 14 is a view showing a state in which the pedal 7 is attached to the rail 5 with a side surface portion removed.

The rail 5 is sandwiched between the upper rollers 32 and 33 and the lower roller 40, and the rail 5 of the pedal 7 is
Vertical movement from is restricted. Flange part 32 of upper rollers 32 and 33 rolling on the upper surface of rail 5
a, 32b, 33a, 33b are engaged with the side surfaces of the rail 5, so that the lateral displacement of the pedal 7 from the rail 5 is prevented. A stopper 42 is attached to the front end of the lower surface of the left and right rails 5 facing the rear via an L-shaped attachment member 41 (see FIG. 15), and when the pedal 7 reaches the front end. The stopper 35 on the front surface of the pedal 7 abuts against the stopper 42 on the rail 5 to further restrict the forward movement (the same applies to the rail 8).

The shaft 38 for fixing the wires of the pedals 7 and 8
Is fixed with a wire. The wire is connected to a spring via a pulley.

Hereinafter, the configuration of the load mechanism will be described.

FIG. 16 is an exploded perspective view showing a pulley mounting structure.

From both sides of the base 14 of the handle post 3, bar-shaped shaft members 43 and 44 projecting in the horizontal direction are provided respectively. First pulleys 45 and 46 are rotatably supported by small diameter portions at the distal ends of the shaft members 43 and 44. A pulley mounting substrate 47 is joined to the upper surface of the bridge member 13 at the front leg support portion 11 side end. The pulley mounting substrate 47 has four rod-shaped shaft members 48, 49, 5 symmetrically.
0 and 51 are erected. Two shaft members 48, 49 provided in front of the pulley mounting substrate 47 are provided with second small pulleys 52b, 53b (FIG. 7) provided concentrically with the large second pulleys 52a, 53a having a large diameter. 18) are rotatably supported so that the second small pulleys 52b and 53b are located on the lower side. The second pulleys 52, 53 have flange bushes 54a, 54b, 55a, having a large-diameter flange at one end in the axial direction.
55b is attached, and the second pulleys 52, 53 are supported by the shaft members 48, 49 via the flange bushes 54a, 54b, 55a, 55b. Third pulleys 56 and 57 having substantially the same diameter as the first pulleys 45 and 46 are rotatably mounted on the small diameter portions at the ends of the two shaft members 50 and 51 provided behind the pulley mounting substrate 47. Supported. here,
The second large pulleys 52a and 53a constitute a foot placement means side pulley, the second small pulleys 52b and 53b constitute a spring side pulley, and the shaft members 48 and 49 constitute a pulley shaft support means.

FIG. 17 is an exploded perspective view showing the springs 60 and 61 and members for fixing the springs 60 and 61 to the base frame 2.

The spring fixing bracket 62 is composed of two members, a first bracket 63 and a second bracket 64. First
The bracket 63 is a plate-like member bent in a substantially U-shape, and spring tension adjusting grooves 65 and 66 are formed on both side surfaces. The spring tension adjusting grooves 65 and 66 have a comb-like shape, and have an upper substantially horizontal communication portion 65a and three branch portions 65 inclined forward from the upper side to the lower side.
b, 65c and 65d (the same applies to the groove 66). The second bracket 64 has a substantially rectangular parallelepiped bottom, a substantially square bottom, two side walls 64a, 64b standing upright from the bottom, and a front wall 64c standing upright from the bottom and joined between the two side walls.
Having.

The first bracket 63 is attached to the rear leg support portion 12 such that the first bracket 63 is open upward and the side portions extend in the front-rear direction. The second bracket 64 is arranged in the first bracket 63 such that the front wall portion 64c is located forward. Since the space between both side walls of the second bracket 64 is narrower than the space between both side surfaces of the first bracket 63, the second bracket 64 moves along the side surface in the space between the side surfaces of the first bracket 63. Can be. Holes for inserting pins 67 are formed in both side walls 64a and 64b of the second bracket 64. Insert a pin longer than between the side portions of the first bracket 63 into the hole of the second bracket 64,
By engaging the end of the pin 67 with the spring tension adjusting grooves 65 and 66, the spring end can be supported against the urging force of the spring.

The front wall 64c of the second bracket 64 has
The two spring connection screws 68, 69 are attached, and the two springs 70, 71 are fixed to the second bracket 64 via the spring connection screws 68, 69. Wires 72, 7 are attached to the ends of the springs 70, 71 on the side opposite to the spring fixing bracket 62.
3 is fixed.

As shown in FIG. 18, the wires 72, 73 extending from the springs 70, 71 are wound around the inside of the first pulleys 56, 57 from the rear to the front, and then the second small pulley 5
2b and 53b. The second small pulley 52b,
The ends of the wires 72 and 73 wound around 53b are the second
The small pulleys 52b and 53b are fixed to themselves. Wires 74 and 75 whose ends are fixed to the second large pulleys 52a and 53a themselves are wound around the second large pulleys 52a and 53a. The wires 74 and 75 wound around the second large pulleys 52a and 53a are pulled forward from the outside, and
It is wound around the pulleys 45 and 46 from below upward, pulled out rearward, passes under the rails 5 and 6, and the other end is fixed to the wire fixing shafts 38 and 38 of the pedals 7 and 8. .

As shown in FIG. 19, the wires 74 fixed to the wire fixing shafts 38 of the pedals 7, 8
75 denotes springs 70, 7 via first, second and third pulleys.
1, the springs 70, 71 expand and contract in accordance with the movement of the pedals 7, 8 in the front-rear direction. Further, since a forward tension is always applied to the pedals 7 and 8 via the wires 74 and 75, when not in use, the pedals 7 and 8 move forward along the rails 5 and 6, and the stoppers 35 and 42 are brought back into contact with each other and stopped. Further, when the user moves the pedals 7, 8 backward, the wires 72,
Since the springs 73, 74, 75 must be moved against the tension of the springs 70, 71, a load is applied. Here, the wires 72, 73, 74, 75, the first pulleys 56, 57, the second small pulleys 52b, 53b, the second large pulleys 52a, 53a, the third pulleys 45, 46, and the spring 7
0, 71, spring connection screws 68, 69 and spring fixing bracket 62 constitute a forward / backward moving load means.

As shown in FIG. 20, the strength of the load can be adjusted in three stages by the positions of the pins 67 which engage with the spring tension adjusting grooves 65, 66 of the first bracket 63 of the spring fixing bracket 62. . If the pin 67 is engaged with the rearward branch, the springs 70, 7 in the initial state can be used.
Since the tension of 1 increases, the load acting on the pedals 7 and 8 also increases. Here, the spring tension adjusting grooves 65 and 66 of the first bracket 63, the second bracket 64 and the pin 67 constitute an adjusting means.

Hereinafter, the characteristics of the exercise realized by the exercise apparatus 1 will be described.

FIG. 21 shows the movement of the human body during walking. FIG.
As shown in FIG. 1 (a), the shoulder, hip, knee,
The heel and toe are selected as measurement points, and their movements are
In (b), each point is displayed by a stick picture connecting the points. FIG. 21B shows one cycle of movement when a human walks using a treadmill. 1st to 1st
The points numbered up to 3 indicate the operation until the foot that has stepped forward is kicked backward, and the points numbered from No. 14 to 17 and back again to number 1 kick back. This shows the operation until the point issued is pulled back. FIG. 21 (c) shows only the trajectory of the heel point and the toe.

In FIG. 21 (b) and FIG.
The trajectory connecting the points of the toes numbered from number 13 to number 13 is approximated to an arc having a curvature radius of about 1.7 m as a result of the measurement. The position of the hip joint remains almost constant throughout the walking using the treadmill, and FIG. 22 shows the movement of each point shown in FIG. 21B by a stick picture in which the hip joint is matched. According to FIG. 22, the position of the tip of the foot is lowest immediately below the hip joint, and the foot is located at the foremost position (corresponding to No. 13) with respect to the case where the foot is located at the rearmost position with respect to the hip joint (corresponding to No. 13). Is higher). In other words, when an arc with a radius of curvature of 1.7 m drawn on a vertical plane is approximated to the motion trajectory of the toe,
It can be seen that the exercise range of the forefoot is longer in the forward exercise range than in the backward exercise range from the lowest point. FIG.
(B) and each point shown in FIG. 21 (c) indicates a position measured at a fixed time interval, so that the foot stepped forward kicks backward rather than the time required to kick backward. The time required to pull the released foot forward is shorter, that is, the operation of kicking back and pulling the foot forward is performed faster than the operation of kicking the foot stepped forward backward. Understand. Further, FIG. 23 shows the movement of the foot by connecting the toes and the heel when Nos. 1 to 13 are added in FIG. 21B, and FIG. It shows the movement of the foot when attached.
As is clear from FIGS. 23 and 24, the angle of the heel with respect to the toe changes during walking.

Based on the analysis of the actual walking motion as described above, in the exercise equipment, the radius of curvature of the rail is approximated to the trajectory of the toe in the coordinate system fixed to the hip joint during human walking. The shape was a 7 m arc. Further, the length of the rail is set so that the front is longer than the rear with respect to the lowest point. In addition, since the pedal is always pulled forward by the spring, the force of the spring acts as a load on the leg movement until the swinging foot is kicked backward, and when the foot kicked backward is pulled back forward In this case, the exercise of the legs is assisted, and the exercise that is similar to the actual walking can be performed in terms of the exercise speed. Further, as described above, in the pedal according to the present invention, the movable bracket to which the pedal board on which the user places his / her foot is fixed swings about an axis provided in front of the base bracket moving along the rail. Movably supported, FIG.
As shown in FIG. 26 (trajectory when the pedal moves backward) and FIG. 26 (trajectory when the pedal moves forward), the angle of the heel with respect to the toe can be changed during exercise. That is, the movement of the pedal that follows the actual movement of the foot can be realized without deviation of the movement of the pedal from the movement of the foot during actual walking. In addition, a spring is interposed between the movable bracket and the base bracket, and serves as a load for stepping on the heel and an auxiliary function for raising the heel. All of the movement can be used for the movement throughout the walking movement, and efficient movement can be achieved. In addition, since the movement of the foot during walking is realized by the mechanism of the pedal that moves along the rail, the movement that approximates walking can be performed in a small installation space.

(Second Embodiment) FIG. 27 shows an exercise machine 80 according to a second embodiment of the present invention.

The two U-shaped frames 81 and 82 are assembled so as to rotate about the ends on the opening side of each other, and are installed in an inverted V-shape such that the rotating parts 83 and 84 are upward. . An inverted V-shaped handle 85 extending upward is installed between the rotating parts 83 and 84 so as to be inclined forward. Further, rod-shaped pedal posts 86, 87 extending vertically downward are swingably provided on the respective rotating portions 83, 84, and the pedals 7 are attached to pedal support portions 86a, 87a at the lower ends of the pedal posts 86, 87. , 8 are mounted one by one. Here, the pedal posts 86 and 87 constitute guide means.

The pedals 7, 8 have the same structure as the pedals 7, 8 of the first embodiment except for the pedestal bracket. That is, the base bracket is directly attached to the pedal 7, 8 support. The configuration of the pedals 7, 8
Since the third embodiment is the same as the first embodiment, the details are omitted. With such a configuration of the pedal, a movement similar to actual walking can be performed, as in the first embodiment.

The cylinders 90, 9 are provided near the upper ends of the left and right pedal posts 86, 87 and the handles, respectively.
The ends of one rod 90a, 90b, 91a, 91b are joined. When the rods (force transmitting means) 90a, 91a are pulled, an attractive force acts on the rods 90a, 91a from the cylinders 90, 91, so that the pedal posts 86, 87 always move forward by the attractive force of the cylinders 90, 91. Being energized. Also, pedals 7, 8
To move the cylinder 9 backward.
It must be moved against 0,91, which adds a load. In this way, a movement similar to actual walking can be performed in terms of the movement speed.

(Third Embodiment) FIG. 28 shows an exercise machine 100 according to a third embodiment of the present invention.

Exercise equipment 100 has the same configuration as that of the first embodiment except for the load mechanism, and therefore the same configuration as handle post 3 is omitted in FIG. 28 as appropriate.

Also in this embodiment, the rails 5 and 6 have the same shape as in the first embodiment, and the pedals 7 and 8 also have the same configuration as in the first embodiment. A more approximate movement can be realized without occupying a large space.

A cylinder and a link are attached to a bridge 13 connecting the front leg support 11 and the rear leg support 12 of the base frame 2. Link mounting portions 101 and 102 are provided on the left and right sides of the rear end of the bridge portion 13, and cylinder mounting portions 103 and 104 are provided on the left and right sides from the front. Cylinder mounting part 1
The end portions of cylinders 105 and 106 are rotatably supported by 03 and 104, and the end of a rod 107 (not shown for the cylinder 106) extending from the other end of the cylinders 105 and 106 is a first link 109, 110 is rotatably connected to the base end. Link mounting part 101,
The ends of the first links 109 and 110 are rotatably supported by 102, and the other ends of the first links 109 and 110 are rotatably connected to one ends of the second links 111 and 112 via shafts. Have been. The other ends of the second links 111, 112 are rotatably supported by pedestal brackets 23, 23 of the pedals 7, 8. Here, the first links 109 and 110 and the second links 111 and 112 constitute a force transmission unit.

When the rod 107 is to be pulled, an attractive force acts on the rod 107 from the cylinders 105 and 106, so that the first links 109 and 110 are urged to rotate forward. At this time, the second link 11
Since the front ends of the first and second links 112 and 112 are connected to the pedestal brackets 23 and 23, the second links 111 and 112 move the pedals 7 and 8 forward in accordance with the forward rotation of the first links 109 and 110. Extrude. When the pedals 7, 8 are moved rearward along the rails 5, 6, the first links 109, 110 are rotated rearward by the second links 111, 112, and the rod 107 is pulled rearward. . At this time, the rod 107 is attached to the cylinder 105,1.
Since a force is applied to move the pedals 7, 8 backward, a load is applied since the pedals 7, 8 must be moved against the attractive force of the cylinder. When the pedals 7, 8 are moved forward, the movement of the legs is assisted by the attraction of the cylinder, so that the movement can be performed in a manner similar to actual walking in terms of the movement speed.

[0082]

According to the present invention, since the means for changing the posture of the foot is provided in the foot placing means moving along the guide means, a movement closer to walking can be realized, and a large installation space can be obtained. Exercise equipment not required can be provided.

[Brief description of the drawings]

FIG. 1 is an overall perspective view from the right front of an exercise machine according to an embodiment of the present invention.

FIG. 2 is an overall perspective view from the rear left of the exercise equipment according to the embodiment of the present invention.

FIG. 3 is a side view of the exercise equipment according to the embodiment of the present invention.

FIG. 4 is a front view of the exercise equipment according to the embodiment of the present invention.

FIG. 5 is a top view of the exercise equipment according to the embodiment of the present invention.

FIG. 6 is an exploded perspective view showing components of the pedal.

FIG. 7 is a front view showing the pedal in an assembled state.

FIG. 8 is a rear view showing the pedal in an assembled state.

FIG. 9 is a rear perspective view showing the pedal in an assembled state.

FIG. 10 is a front perspective view of the assembled pedal with the side cover removed;

FIG. 11 is a side view of the assembled pedal with the side cover removed.

FIG. 12 is a sectional perspective view from the front of the assembled pedal with a side cover removed.

FIG. 13 is a sectional side view of the assembled pedal with a side cover removed.

FIG. 14 is a view showing a state where the pedal is attached to the rail, with a side surface portion removed.

FIG. 15 is a diagram showing a stopper in front of a rail;

FIG. 16 is an exploded perspective view showing a pulley mounting structure.

FIG. 17 is an exploded perspective view showing a spring and a member for fixing the spring to the base frame.

FIG. 18 is a diagram showing a route of a wire.

FIG. 19 is a diagram showing a connection state between a pedal and a wire.

FIG. 20 is a diagram showing a load adjustment mechanism.

FIG. 21A is a diagram showing measurement points of a stick picture. FIG. 21B is a diagram showing the motion of the human body during walking as a stick picture. FIG. 21C is a diagram showing the locus of the heel point and the toe.

FIG. 22 is a diagram showing dispersion of a knee joint and an ankle joint in a front-rear direction.

FIG. 23 is a diagram showing movement of a foot.

FIG. 24 is a diagram showing movement of a foot.

FIG. 25 is a diagram showing a trajectory when the pedal moves backward.

FIG. 26 is a diagram showing a trajectory when the pedal moves forward.

FIG. 27 is a diagram showing an exercise machine according to a second embodiment of the present invention.

FIG. 28 is a diagram showing an exercise machine according to a third embodiment of the present invention.

FIG. 29 is a diagram showing an exercise machine according to the first related art.

FIG. 30 is a diagram showing an exercise machine according to a second related art.

FIG. 31 is a view showing an exercise machine according to a third conventional technique.

FIG. 32 is a diagram showing an exercise machine according to a fourth conventional technique.

FIG. 33 is a diagram showing an exercise machine according to a fifth related art.

FIG. 34 is a diagram showing a change in moment of a force acting on a joint during walking.

FIG. 35 is a diagram showing a change in the position of a pedal according to the related art.

[Explanation of symbols]

 1,80,100 Exercise equipment 5,6 Rail 7,8 Pedal 45,46 Third pulley 56,57 First pulley 52b, 53b Second small pulley 52a, 53a Second large pulley 56,57 First pulley 62 Spring fixed Bracket 65, 66 Spring tension adjusting groove 70, 71 Spring 72-75 Wire

Claims (12)

[Claims] 1. A foot resting means on which a user places a foot, and a guide means for guiding a movement of the foot placing means in a front-rear direction, the foot resting means being placed on the foot placing means. An exercise machine that moves by moving a foot back and forth in accordance with the guide means, wherein the foot placement means includes a base portion that moves in accordance with the guide means, a foot placement section that abuts on a foot, and the foot placement section. An exercise machine comprising posture variable support means for supporting a part with respect to the base so that the posture can be changed. 2. A posture supporting means for pivotally supporting the foot rest on the base with respect to the base,
The exercise according to claim 1, further comprising: urging means interposed between the base portion and the footrest portion, and urging means for urging the base portion and the footrest portion in a direction away from each other. machine. 3. The exercise equipment according to claim 1, wherein the foot placement unit includes a posture change load unit that applies a load to the posture change of the foot placement unit. 4. The exercise equipment according to claim 3, wherein the posture change load means is capable of adjusting a magnitude of a load with respect to a change in posture of the footrest. 5. The exercise equipment according to claim 1, further comprising a forward / backward movement load unit that applies a load to the forward / backward movement by applying a forward force to the foot placement unit. . 6. The exercise machine according to claim 5, further comprising adjusting means for adjusting the magnitude of a force acting on said foot placing means by said forward and backward moving load means. 7. The forward / backward movement load unit includes: a spring that is extended; a wire that connects the foot placement unit to the spring; and a wire that is pulled forward from the foot placement unit. The exercise apparatus according to claim 5, further comprising: a pulley that guides the spring to the spring. 8. The foot placement means-side pulley on which a first wire, one end of which is connected to the foot placement means, is wound and the other end of the wire is locked, A second wire having one end connected to the spring is wound around the spring, and the other end of the wire is engaged with the spring-side pulley; The exercise equipment according to claim 7, further comprising: a pulley support means rotatably supporting the pulley in a synchronized manner around the pulley. 9. The front-rear movement load means includes: a cylinder that generates an attractive force due to a negative pressure generated in a working fluid; and connects the cylinder and the foot mounting means; The exercise device according to claim 5, further comprising: a force transmission unit that acts from the front. 10. The exercise equipment according to claim 1, wherein the guide means has a track member extending along a moving direction of the foot placing means. 11. The exercise equipment according to claim 10, wherein the shape of the guide means in the front-rear direction is an arc shape that approximates a trajectory drawn by a human foot when walking in a coordinate system fixed to the hip joint. 12. The exercise equipment according to claim 11, wherein the arc shape of the guide means has a circumference from the lowermost point to the front end longer than a vertical length from the lowest point to the rear end in the vertical direction.