JPH02249785A - Driving gear of bicycle and pedal rotating type sport tool - Google Patents

Abstract

PURPOSE:To make operation possible even by a person with a bodily harm in his leg further facilitating acceleration and running on an ascending road by supporting to a steering shaft a steering handle possible to perform reciprocating turn motion so as to be transmitted to a pedal shaft as its turning force. CONSTITUTION:A grip 22 is turned rotating a flexible shaft 21 moving downward a rack 18, and the axial center of a connecting shaft 20 of the rack 18 to a swivel rod 19 is positioned in the lower from a turn center axis 17 of a swivel lever 16. Under this condition, right and left steering handles 14a (right handle not shown) are reciprocated turning about a shaft 13. This motion is transmitted through in interlocking lever 28, connecting rod 32, intermediate lever 30 and a reciprocating rod 27 to an external disk 26 of an eccentric bearing 24, rotating an internal disk 25, pedal shaft 7 and a rear wheel 5. By this constitution, operation can be performed even with a bodily harm in a leg further making it possible to facilitate ascending an uphill slope and acceleration by utilizing arm force for driving the wheel.

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION [Industrial Field of Application] The present invention relates to pedal-rotating exercise equipment, and particularly to improvements in the driving force application means for bicycles.

[Prior Art and Problems to be Solved by the Invention] In conventional bicycles, the pedal lever is rotated by pressing the pedal with the foot, and the rotation of the pedal shaft accompanying the rotation is transmitted to the wheel.

That is, the bicycle is driven only by the strength of the legs of a person, and the hands are used only to steer the handlebars, so the strength of the human arm is not effectively utilized as the driving force for the bicycle.

In addition, although it is not a bicycle, similar exercise equipment for increasing physical strength is similar to a bicycle, such as holding the handle with your hands,
There are devices that rotate the pedal lever by pressing the pedal with the foot. In this case, since the hands only supported the body, there were no particularly large arm movements, and only the leg movements were the main movement.

The purpose of the present invention is to enable a person's physical strength to be effectively used as driving force for a bicycle, making it easier to accelerate and ride uphill, and making it very convenient for people with disabilities such as knees. Our objective is to provide a bicycle drive device.

Another object of the present invention is to provide a pedal-rotating exercise device that is effective for increasing physical strength by allowing the user to automatically perform both exercises at the same time by exercising one of the legs and arms. .

Composition of the invention [r! Means for Solving Problem R 1 In view of this objective, the bicycle according to the present invention is capable of reciprocating rotation about the steering shaft 2 that changes the direction of the wheel 4, as shown in the drawings of the second and second embodiments described later. Steering handle 1 supported on
4a, 14b and a pedal shaft 7 rotatably supported so as to transmit rotation to the wheels 5, a steering handle 14a is provided.
, 14b is provided with an interlocking mechanism G that transmits the reciprocating rotation of the pedal shaft 7 as rotation of the pedal shaft 7. In addition to this, as shown in the second embodiment, the steering shaft 2 is supported so as to be movable up and down with respect to the frame 1. In addition, means 61, 63, 64 for positioning the steering shaft 2 with respect to the frame 1 may be provided.

In addition, in order to achieve this object, the pedal rotary exercise device according to the present invention has a handle 14a supported so as to be rotatable in a reciprocating manner, as shown in a third embodiment to be described later.

14b and a rotatably supported pedal shaft 7, a link vJRIaG is provided for mutually transmitting the reciprocating rotation of the handles 14a, 14b and the rotation of the pedal shaft 7.

[Function] In the bicycle of the present invention, the pedal shaft 7 is rotated by the legs, and the steering handles 14a, 14b are rotated by the arms.
When the steering handles 14a and 14b are rotated back and forth, the reciprocating rotation of the steering handles 14a and 14b is transmitted as rotation of the pedal shaft 7 by the linked VJ mechanism G, and the rotation of the pedal shaft 7 thereby is transmitted to the wheels 5.

In this case, if the steering shaft 2 can be adjusted up and down to 0,
The posture in which the steering handles 14a and 14b are rotated back and forth changes.

In addition, in the pedal rotary exercise device of the present invention, if the handles 14a and 14b are reciprocated and rotated by the arm, the interlocking mechanism 4
NG causes the pedal shaft 7 to rotate, and conversely, if the foot rotates the pedal shaft 7, the interlocking mechanism G causes the handles 14a, 1 to rotate.
4b rotates back and forth.

[First Embodiment J] First, the first to third embodiments in which the present invention is embodied in a bicycle are explained.
This will be explained according to Figure 6.

As shown in FIGS. 1 to 4, a steering shaft 2 is rotatably supported at the front of a frame 1, and a front wheel 4 is rotated by an arm 3 extending downward from the lower end of the steering shaft 2. installed as possible. A rear wheel 5 is rotatably attached to the rear part of the frame 1, and a seat 6 is attached to a central portion of the frame 1.

A pedal shaft 7 is rotatably supported at the lower center of the frame 1, a pedal lever 8 is fixed to both ends of the pedal shaft 7, and a pedal 9 is fixed to the tip of the left and right pedal lever 8. It is rotatably mounted. A large sprocket 10 is attached to this pedal shaft 7, so that the rotation of the pedal shaft 7 can be transmitted to the large sprocket 10 only in the direction of arrow A. Support shaft 5 of the rear wheel 5
A small sprocket 11 is fixed to a, and an interlocking chain 12 is passed between the small sprocket 11 and the large sprocket 10.

At the upper end of the steering shaft 2, a box 13 is rotatably supported by a shaft 13a, and left and right steering handles 14a, 14b are clamped to the box 13 by a lid 15. When the steering handles 14a, 14b are rotated in the steering direction, the steering shaft 2 is rotated and the direction of the front wheels 4 can be changed. Also, both the left and right steering handles 14a.

14b reciprocates in the vertical direction with respect to the steering shaft 2, so that when one side is tilted upward, the other side is tilted downward.

In particular, the reciprocating rotation of the steering handles 14a, 14b is transmitted as rotation of the pedal shaft 7 by the interlocking mechanism G. Next, this interlocking mechanism G will be explained in detail.

The steering shaft 2 includes a rotation center shaft 13a of the box 13.
A swing lever 16 is supported by a shaft 17 so as to be rotatable in the left-right direction below. The swing lever 16 extends downward from the shaft 17 in front of the steering shaft 2, and has a slide hole 16a formed at its tip end. A plane including the axis of the slide hole 16a is perpendicular to the axis of the rotation center shaft 17 of the swing lever 16.

A rack 18 is supported by the box 13 so as to be movable up and down, and its lower end extends to the front of the swing lever 16. A spin rod 19 is inserted into the slide hole 16a of the swing lever 16 so as to be movable in the axial direction of the circumferential hole 16a,
The upper end of this swing rod 19 is rotatably supported by a shaft 20 with respect to the lower end of the rack 18 .

A flexible shaft 21 is inserted into the left and right steering handles 14a, 14b, and the ends of the shaft 21 are connected to a grip 22 that is rotatably supported on the left and right steering handles 14a, 14b. The shaft 21 is connected to a pinion 23 which is rotatably supported by a pinion 23.

This pinion 23 is screwed onto the rack 18.

When the grip 22 is rotated, the flexible shaft 21 is rotated, the pinion 23 is also rotated, and the rack 18 is moved up and down.

Due to this vertical movement, the swing rod 19 also moves up and down along the slide hole 16a of the swing lever 16.

On the other hand, an eccentric bearing 24 consisting of both inner and outer disks 25 and 26 is attached to the pedal shaft 7, and the inner circumference of the outer disk 26 is rotatably supported by a ball against the outer circumference of the inner disk 25. The pedal shaft 7 is fixed to the inner circular plate 25 at a position eccentric to the centers of the inner circular plate 25 and the outer circular plate 26. One end of a reciprocating rod 27 is fixed to the outer periphery of the outer disk 26,
Its axis passes through the center of the outer disk 26.

An interlocking lever 28 is fixed to the rotation center shaft 17 of the swing lever 16 at the rear of the steering shaft 2, and a trident-shaped intermediate lever 3o is attached to a bracket 29 attached to the frame 1 and is moved up and down by a shaft 31. one arm 30 of the interlocking lever 28 and the intermediate lever 30.
An interlocking rod 32 is connected to a via a universal joint 33. The other end of the reciprocating rod 27 is rotatably supported on the other arm 30b of the intermediate lever 30 by a shaft 34.

The above are the details of the continuous vJ machine fIG.

Now, when the bicycle of this first embodiment is to be driven not only by leg power but also by arm power, the grip 22 is rotated to move the rack 18 downward as shown in FIG. The axis of the connecting shaft 20 with the swing lever 16
It is located below the axis of the rotation center axis 17 of. In this state, when the left and right steering handles 14a, 14b are reciprocated in the vertical direction about the shaft 13a with the arms, the rack 1
8 rotates in the left and right direction around the shaft 13a, and the swing lever 1
6 is pushed by the swing rod 19 and similarly rotates. The rotation is transmitted to the reciprocating rod 27 via the shaft 17, the interlocking lever 28, the connecting rod 32, and the intermediate lever 30, and the rod 27 reciprocates approximately within a certain range in the axial direction. Due to this reciprocating movement, the outer disc 26 of the eccentric bearing 24 also reciprocates following the rod 27, and the inner disc 25 moves to the pedal shaft 7.
rotates with

In this way, the movement of the steering handles 14a, 14b is transmitted to the pedal shaft 7 as rotation.

At the same time, if you rotate the pedal lever 8 with your foot,
Together with the rotation of the pedal shaft 7 due to the movement of the steering handles 14a, 14b, the pedal shaft 7 rotates, and the rotation is transmitted to the rear wheels 5 via the interlocking chain 12. This rotation of the pedal lever 8 is also transmitted as a movement of the left and right steering handles 14a, 14b via the navigation linkage mechanism G.

Therefore, not only a person's leg strength but also their arm strength can be effectively used as driving force for the bicycle, making it easier to accelerate and run uphill, and it is very convenient for people with disabilities such as knees.

In addition, in this first embodiment, when the right pedal 9 moves up and pushes down the same pedal 9, the right steering handle 14
b tilts downward to pull up the handle 14b, and the left steering handle 14a tilts upward to push down the handle 14a. The same applies to the case where the left and right sides are reversed.

This makes it easier to apply force to the legs and arms, which is effective.

The left and right steering handles 14a, 14b are moved by vertically moving the rack 18 and the left and right steering handles 14a, 14b.
The distance 111L between the rotation center axis 13a of the rack 14b and the connecting shaft 20 between the rack 18 and the swing rod 19 is shown in FIG. 6(a).
w4w can be achieved by changing as shown in (b'). That is, since the reciprocating distance of the reciprocating bolt 27 fixed to the outer disc 26 of the eccentric bearing 24 is determined by the eccentric distance of the inner disc 25 of the eccentric bearing 24, the swing lever ~16
The reciprocating rotation angle .theta. of the oscillating zero point 19 is constant regardless of the distance. In this case, the longer the distance, the larger the reciprocating rotation angle α of the rack 18, and the larger the inclination angle β of both the left and right steering handles 14a, 14b, allowing the handles 14a, 14b to be moved with a small force. Conversely, if the path 1111L is shortened, the reciprocating rotation angle α of the rack 18 will also become smaller, and the handle 14
The inclination angle β of the handles 14a and 14b becomes smaller, and a larger force is applied to the handle 14a.

14b needs to be moved.

Next, when the bicycle of this first embodiment is to be driven only by leg power, the grip 22 is rotated to move the rack 18 upward as shown in FIG.
The axial center of the connecting shaft 20 with 9 is located on the axial center of the rotation center shaft 17 of the swing lever 16. In this state, Fig. 6 (a
) Since the path ML shown in (b) becomes zero, the reciprocating rotation angle α of the rack 18 also becomes zero, and both the left and right steering handles 14a, 1411 cannot be moved, and the handles 14a, 14b are horizontal. Locked in position.

Therefore, the handlebars 14a and 14b allow the pedal shaft 7 to
cannot be rotated. Therefore, the rear heavy wheel 5 is driven only by the rotation of the pedal lever 8. At this time,
When the pedal shaft 7 is rotated by the pedal lever 8, the swing lever 16 and the swing rod 19 reciprocate by the angle θ, but this movement is caused by the rack 18 and both the left and right steering handles 1.
4a and 14b.

[Second Embodiment] Next, a second embodiment in which the present invention is embodied in a bicycle will be described in 7th to 7th embodiments.
This will be explained according to FIG. This second embodiment is a modification of the interlocking mechanism G of the first embodiment.

As shown in FIGS. 7 to 11, a rotating pipe 36 is inserted into the fixed pipe 35 at the front of the frame 1, and a guide pipe 37 is inserted into the rotating via 36 so as to be integrally rotatable. ing. A split male threaded portion 36a formed at the upper end of the rotary pipe 36 is screwed with a Taper split screw 38 and a seat plate 39 that is in contact with the lower end surface of the Taper split screw 38. A taper fastening nut 40 is screwed onto the outer periphery of the guide pipe 37, and the guide pipe 37 is fixed to the rotary via 36 so as not to move up and down. This seat plate 39 is mounted on the upper end surface of the fixed pipe 35 via a bearing 41. Therefore, rotating via 3
6, Guide pipe 37, Taber split screw 38, seat plate 39
For tightening the taper, the nut 40 can rotate integrally with the fixed pipe 35 via a bearing 41.

The steering shaft 2 is inserted into the guide pipe 37 and supported so as to be rotatable integrally with the guide vibe 37 and movable up and down. A compression coil spring 42 is inserted into the steering shaft 2, and the steering shaft 2 is biased upward by the compression coil spring 42 and remains stationary.

A hanger 43 is fixed to the upper end of the steering shaft 2, and rotating members 44 and 45 are provided on both front and rear sides of the hanger 43, respectively.
is rotatably supported by a bearing 46. Both rotating members 44 and 45 can be rotated together by a connecting member 47. Swing arms 48, 49 are fixed to both the front and rear rotating members 44, 45 so as to be integrally rotatable, and both swing arms 48.49 extend downward. Both left and right steering handles 14a and 14b are inserted into the front rotating member 44 and can rotate integrally with the rotating member 44.

Support shafts 50 are fixed to both the front and rear sides of the guide vibe 37 below the hanger 43, and swing levers 51 and 52 are rotatably supported on both support shafts 50 via bearings 53. Both swing levers 51 and 52 extend downward and can be rotated together by an interlocking lever 54. Both swing levers 51 and 52 have a slide groove 51a,
52a is formed to extend in the longitudinal direction, and sliders 55 and 56 are fitted into both slide grooves 51a and 52a so as to be movable along both slides 51a and 52a. The lower end portions of both the swinging members 48 and 49 are rotatably supported by swing shafts 57 and 58 relative to the sliders 55 and 56.

A stopper lever 59 is located at the lower end of the front swing arm 48.
is rotatably supported by a shaft 60, and this stopper lever 59 extends upward.

Slightly above this shaft 60, the stopper lever 59
A stopper bin 61 is rotatably supported by a shaft 62, and this stopper bin 61 is inserted into the front swing shaft 57 so as to be movable in the axial direction. Front swing lever 5
The first slide 151a has a stopper hole 63 located on the axis of both support shafts 50, which is the center of rotation of both swing prevention levers 51.52, and a plurality of stopper holes 64 that are spaced downward from this stopper hole 63. are arranged in parallel along the slide groove 51a. The stopper bin 61 can be engaged with or disengaged from either stopper hole 63 or 64 depending on the position of the slider 55 with respect to the slide groove 518.

An operating lever 65 is attached to the right steering handle 14b near the holder 22, and an interlocking wire 66 is connected between the operating lever 65 and the upper end of the stopper lever 59. A compression coil spring 68 is fitted onto the outer periphery of the interlocking wire 66 between the bracket 67 attached to the front rotating member 44 and the upper end of the stopper lever 59. is pushed so that the stopper pin 61 is engaged with the stopper holes 63 and 64 of the front swing lever 51. When the operating lever 65 is pressed, the stopper lever 59 rotates against the biasing force of the compression coil spring 68, and the stopper bin 61 is moved from the stopper hole 63.
It is supposed to be 11 years old.

As in the first embodiment, an interlocking rod 32 is connected to an interlocking lever 54 that connects both the swinging levers 51 and 52 so as to be integrally rotatable, and this interlocking rod 3
The interlocking means between 2 and the rear wheel 5 are the same as in the first embodiment.

Now, if the bicycle of the second embodiment is to be driven not only by leg power but also by arm power, push the operating lever 65 to disengage the stopper bin 61 from the stopper hole 63, 64 of the front swinging lever 51, as shown in FIG. As shown, both left and right steering handles 14a.

14b is pushed downward to move the steering shaft 2 downward against the biasing force of the compression coil spring 42. Then, when the operating lever 65 is released at an appropriate position where the stopper bin 61 is separated downward from the stopper hole 63 located on the center of rotation of both swing levers 51 and 52, the stopper bin 61 is moved downwardly by the biasing force of the compression coil spring 68. It is engaged in one of the stopper holes 64. In this state, both the left and right steering handles 148.1 are
41) is reciprocated in the up and down direction centering on both the front and rear rotation members 44.45, the front and rear side swinging arms 48.49 rotate in the left and right directions centering on both the rotation members 44.45. The swing levers 51, 52 are pushed by the two swing arms 48, 49 and rotated in the same way. The rotation is transmitted to the reciprocating rod 27 via the interlocking lever 54, the interlocking rod 32, and the intermediate lever 30, and the rod 27 reciprocates within a certain range approximately in the axial direction.

Due to this reciprocating movement, the outer disk 26 in the eccentric bearing 24
The pedal also moves back and forth following the rod 27, and the inner disc 25 rotates together with the pedal shaft 27.

In this way, the movement of the steering handles 14a, 14b is transmitted to the pedal shaft 7 as rotation.

At the same time, if you rotate the pedal lever 8 with your foot,
Together with the rotation of the pedal shaft 7 due to the movement of the steering handles 14a, 14b, the pedal shaft 7 rotates, and the rotation is transmitted to the rear wheels 5 via the interlocking chain 12. This rotation of the pedal lever 8 is also transmitted as a movement of the left and right front steering handles 14a, 14b via the interlock 41I ellipse.

Therefore, not only a person's leg strength but also their arm strength can be effectively used as driving force for the bicycle, making it easier to accelerate and run uphill, and it is very convenient for people with disabilities such as knees.

Also in this second embodiment, when the right pedal 9 moves up and pushes down the pedal 9, the right steering handle 14b tilts downward and pulls up the handle 14b, and the left steering handle 14a moves upward. The handle 14a is tilted and pushed down. The same applies to the case where the left and right sides are reversed. This makes it easier to apply force to the legs and arms, which is effective.

The movement of the left and right front steering handles 14a and 14b is achieved by vertically moving the steering shaft 2 so that the pivot shaft 50, which is the center of rotation of both swinging levers 51 and 52, both swinging arms 48, 49, and both swinging levers 51 It can be adjusted by changing the distance M from the swing shaft 57.58, which is the connecting portion to the .52, as shown in FIGS. 13(a) and 13(b'). In the first embodiment, as shown in FIGS. 6(a) and 6(b), this distance M is between the rotation center axis 13a of the rack 18 and the left and right front steering handles 14a, 14b, and the rotation center of the swing lever 16. Since the distance from the shaft 17 is constant, it corresponds to the distance MM between the connecting shaft 20 of the rack 18 and the swing rod 19 and the rotation center shaft 17.

Therefore, regarding the relationship between the reciprocating rotation angle θ of both swing levers 51, 52, the reciprocation rotation angle α of both swing arms 48, 49, and the inclination angle β of left and right front steering handles 14a, 14b, Please refer to the description of one embodiment.

Next, when the bicycle of the second embodiment is to be driven only by leg power, the stopper pin 61 is inserted into the stopper hole 63 located on the center of rotation of both swing levers 51, 52. In this state, the distance M shown in FIGS. 13(a) and 13(b) becomes zero.

This state is shown in FIGS. 6(a) and (b) in the first embodiment.
), the distance M becomes zero, so a detailed explanation of FIGS. 13(a) and 13(b) will be given to the first embodiment.

Particularly, this second example differs from the first example in that the attitude can be changed by vertically adjusting the left and right front steering handles 14a, 14b together with the steering shaft 2. That is, as described above, by vertically adjusting the left and right front steering handles 14a, 14b, the handles 14a, 14b can be quickly switched between the reciprocally rotatable position and the lock position. Moreover, when the handles 14a, 14b are rotated back and forth, the handles 14a, 14b are lowered and the posture is bent forward, and the force of both arms and the body weight is applied to the handle 14a, 14b.
14b, and the air resistance is reduced, making acceleration and driving on uphill slopes more -G! It can be done easily.

In addition, the above-mentioned D! l[G is designed by applying mechanical elements such as links and cams, but is not limited to this. Further, the movement of the steering handles 14a, 14b is a reciprocating rotation in the vertical direction, but is not limited to this.

[Third Embodiment] In the above-mentioned first and second embodiments, the present invention is embodied in a bicycle, but this can also be applied as a pedal-rotating exercise device. In this case, since the steering function of the bicycles of both embodiments is not necessary, the steering shaft 2 is made unrotatable, the navigation wheel 4 is removed, and the frame 1 is fixed on the stand. The appearance can be simpler than that of a bicycle.

In such a pedal rotary exercise device, the handle 14a
, 14b and the rotation of the pedal lever 8 by an interlocking mechanism G.
The handle 14 is interlocked and transmits information to each other.
If the pedals a and 14b are rotated back and forth, the pedal lever 8 will rotate, and conversely, if the pedal lever 8 is rotated, the same handle 14a will be rotated.
, 14b rotate back and forth.

Therefore, if you exercise one of your legs and arms, you can automatically exercise both at the same time, which is effective for increasing your physical strength.

Note that it would be even more effective if the handles 14a, 14b and the pedal lever 8 are provided with a function of providing adjustable resistance when they are moved.

Effects of the Invention According to the bicycle of the present invention, not only a person's leg strength but also a person's arm strength can be effectively used as driving force, so it is possible to accelerate and run uphill easily, and it also prevents injuries such as knees. It is very convenient for those who have.

In this case, if the steering shaft 2 can be adjusted vertically,
The steering handles 14a, 14b can be easily rotated back and forth by changing their posture with respect to the steering handles 14a, 14b.

Further, according to the pedal rotating exercise device of the present invention, if one of the legs and arms is exercised, both can be exercised at the same time, which is effective for increasing physical strength.

[Brief explanation of drawings]

Figures 1 to 6 show the first embodiment, Figure 1 is a schematic side view of the bicycle, Figure 2 is a schematic plan view, Figure 3 is a schematic front view, and Figure 4 shows the steering handle horizontally. Fig. 5 is a partial perspective view showing the state in which the steering wheel is tilted;
b) is an explanatory diagram of the link i Tachibana that adjusts the inclination of the steering handle, Figures 7 to 13 show the second embodiment, Figure 7 is a schematic side view showing the bicycle, Figure 8 is also a schematic plan view, 9th
The figures are a schematic front view, FIG. 10 is a partial perspective view showing the steering handle locked in the horizontal position, FIG. 11 is a partial side sectional view, and FIG. 12 is a partial perspective view showing the steering handle tilted. 13A and 13B are explanatory diagrams of a link mechanism that adjusts the inclination of the steering handle. 1...Frame, 2...Steering shaft, 4...Front wheel,
5... Rear wheel, 7... Pedal shaft, 14a, 14b.
... Steering handle, G... interlocking mechanism. Patent applicant Ryo Tsukahara Ryo Mimarai Patent attorney On 1) Hironobu (1 idiot)

Claims (1)

[Claims] 1. Steering handles (14a, 14b) supported so as to be rotatable in a reciprocating manner relative to a steering shaft (2) that changes the direction of the wheels (4), and a steering wheel (14a, 14b) so as to transmit rotation to the wheels (5). A steering handle (14a, 1
A bicycle drive device comprising an interlocking mechanism (G) that transmits the reciprocating rotation of step 4b) as rotation of a pedal shaft (7). 2. In the first claim, the steering shaft (2) is connected to the frame (1).
), and supports the frame (1) so that it can move vertically.
) of the steering shaft (2) relative to the positioning means (61, 63
, 64). 3. Handles (14a, 14b) supported for reciprocating rotation
) and the rotatably supported pedal shaft (7) is provided with an interlocking mechanism (G) that mutually transmits the reciprocating rotation of the handles (14a, 14b) and the rotation of the pedal shaft (7). This is a pedal-rotating exercise device with special features.