KR20230033444A - Indoor bicycle equipped with ankle exercise equipment - Google Patents

Abstract

Disclosed is an indoor bicycle equipped with an ankle exercise apparatus. An indoor bicycle equipped with the disclosed ankle exercise apparatus is provided with a pair of legs provided at the front and rear, a frame in which a chair is installed, a main body provided in front of the frame, a pair of ankle pedals that seat the feet of the user sitting on the chair on both sides of the main body and allow the ankle to rotate forward and backward at a set angle based on the central axis, and an ankle muscle strengthening unit provided in the main body and connected to the front and rear sides of the ankle pedal to strengthen the ankle muscle strength of the user seated on the chair.

Description

Indoor bicycle equipped with ankle exercise equipment {INDOOR BICYCLE EQUIPPED WITH ANKLE EXERCISE EQUIPMENT}

The present invention relates to an indoor bicycle equipped with an ankle exercise device, and more particularly, by converting power of a driving motor provided in the main body to at least one of a bevel gear driving method, a link driving method, a rack and pinion driving method, or a seesaw driving method. By switching to one method, twisting two springs each on both sides of the left and right or changing the length increases or decreases the energy, so the user's ankle motion can be adjusted manually or according to the user's physical condition by varying the rotational elastic force applied to the pedal in multiple stages. The present invention relates to an indoor bicycle equipped with an ankle exercise device that optimizes a user's ankle exercise amount according to each person's physical condition by automatically adjusting the motion.

In general, today's modern people are increasingly interested in health care and body care. In particular, in order to reduce medical costs in the aging era, we are interested in the spread of social sports at the national level.

Accordingly, the number of people who exercise regularly is increasing, but due to the lack of large spaces in cities, indoor sports that can provide exercise effects in a short time tend to be preferred.

These indoor sports have the advantage of being able to be performed regardless of seasonal and time constraints caused by exercising outdoors, and as the number of people enjoying indoor sports increases, there are various indoor exercise equipment that can increase the exercise effect. developed and disseminated.

For example, cycling is one of the most common exercises because it provides excellent exercise effects without impacting the knee joint. Recently, indoor bicycle exercise equipment has been sold to obtain such exercise effects, and public exercise facilities as well as general It is spread and used at home.

By the way, existing indoor bicycles enhance muscle strength of the thighs by rotating the pedals, but indoor bicycles that train the calf muscles of the user's ankles are not widespread, so the user's calf muscles cannot be strengthened.

Therefore, there is a need to improve this.

As a related background art, there is Korean Patent Registration No. 1385745 (2014.04.09, title of invention: indoor exercise bicycle).

The present invention was created by the above needs, and the power of the driving motor provided in the main body is converted to at least one of a bevel gear driving method, a link driving method, a rack and pinion driving method, or a seesaw driving method to left and right By twisting two springs on each side or changing the length to increase or decrease the energy, the user's ankle motion is manually or automatically adjusted according to the user's physical condition by varying the rotational elastic force applied to the pedal in multiple stages. An object of the present invention is to provide an indoor bicycle equipped with an ankle exercise device capable of optimizing the amount of ankle exercise according to each person's physical condition.

In order to achieve the above object, an indoor bicycle equipped with an ankle exercise device according to the present invention includes a frame provided with a pair of legs provided at the front and rear and a chair installed; a body provided in front of the frame; A pair of ankle pedals for seating the feet of the user seated on the chair on both sides of the body and rotating the ankles forward and backward at a set angle based on a central axis; and an ankle muscle strengthening unit provided in the main body and connected to the front and rear sides of the ankle pedal, respectively, to reinforce ankle muscle strength of the user seated on the chair.

The ankle muscle strengthening unit, a driving motor provided in the main body; a driving bevel gear converting rotational power of the driving motor; a pair of driven bevel gears provided on both sides of the driving bevel gear and rotating in opposite directions by converting rotational force into a right angle; a pair of first and third connecting shafts connected to the driven bevel gear and rotating; first and third drive spur gears provided on the first and third connecting shafts to rotate; second and fourth driving spur gears engaged with the first and third driving spur gears and rotating in opposite directions; second and fourth connection shafts coupled to the second and fourth driving spur gears and rotating in opposite directions with respect to the first and third connection shafts; and a rotation elasticity control unit connected to the first, second, third, and fourth connection shafts, respectively, and connected to the front and rear fixed shafts of the ankle pedal to adjust the rotation and elasticity of the ankle pedal. It is characterized in that it includes.

The rotational elasticity control unit may include a first coil spring connected to the first connection shaft, wound or unwound according to forward and reverse rotation of the driving motor, and installed on a front-side fixed shaft of any one of the ankle pedals; A second coil connected to the second connecting shaft, formed to be wound or unwound according to forward and reverse rotation of the drive motor, and wound in the opposite direction to the first coil spring and installed on a rear fixed shaft of any one of the ankle pedals. spring; a third coil spring connected to the third connection shaft, wound or unwound according to forward and reverse rotation of the driving motor, and installed on the other fixed front shaft of the ankle pedal; And a fourth connected to the fourth connecting shaft, formed to be wound or unwound according to forward and reverse rotation of the driving motor, wound in the opposite direction to the third coil spring, and installed on the rear fixed shaft of the other ankle pedal. It is characterized in that it includes; coil spring.

Since the first coil spring and the second coil spring are wound in opposite directions and the third and fourth coil springs are wound in opposite directions to each other, with respect to the central axis of the ankle pedal, the ankle pedal Since the rotational resilience force applied to the front fixed shaft and the rotational resilience force applied to the rear fixed shaft of the ankle pedal act in opposite directions, the ankle pedal is characterized in that a force is applied to keep it level.

When the first and second coil springs and the third and fourth coil springs are wound, the energy accumulation of the first, second, third and fourth coil springs increases, so that the rotational elasticity of the ankle pedal When the user's ankle momentum is strengthened due to the increase and the first and second coil springs and the third and fourth coil springs are released, energy accumulation in the first, second, third and fourth coil springs Therefore, it is characterized in that the user's ankle momentum is automatically or manually adjusted so that the user's ankle momentum is weakened due to the decrease in the elastic rotational force of the ankle pedal.

The ankle muscle strengthening unit, a driving motor provided in the main body; a power conversion unit that converts rotational power of the drive motor into lifting and lowering power; a link operating unit that receives the power of the power conversion unit and converts the front and rear side of the ankle pedal into straight motion, respectively; and a rotation elasticity control unit that is connected to the link operation unit to adjust the length and is connected to the front and rear fixed shafts of the ankle pedal to adjust the rotation and elasticity of the ankle pedal. to be

The power conversion unit, a screw member connected to the shaft of the drive motor; an elevating member having a female thread engaged with the screw member to move up and down; a protruding member protruding in the longitudinal direction of the circumference of the elevating member; a guide member having a guide groove coupled to the protruding member to guide the elevation of the elevation member; and an operating shaft member formed on the elevating member and connected to the link operating unit.

The link operating unit may include a support link member connected to the operating shaft member and disposed horizontally; Inclined link members coupled to the support link member and connected in a pair at an angle to both left and right sides; and first, second, third, and fourth straight link members connected horizontally to both sides of the inclined link member and disposed in the direction of the front fixed axis and the rear fixed axis of the ankle pedal.

The rotational elasticity control unit has one end seated and fixed to the groove of the seating member provided at the end of the first straight link member, and the other end connected to the front fixing shaft of any one of the ankle pedals to adjust the length. telescopic spring; A second elastic spring whose one end is seated and fixed to the groove of the seating member provided at the end of the second straight link member and whose other end is connected to the rear fixing shaft of any one of the ankle pedals to adjust its length; A third extension spring having one end seated and fixed in the groove of the seating member provided at the end of the third straight link member, and the other end connected to the front side fixing shaft of the other ankle pedal to adjust its length; And a fourth extension spring whose one end is seated and fixed to the groove of the seating member provided at the end of the fourth straight link member and whose other end is connected to the rear fixing shaft of the other ankle pedal to adjust its length. characterized by

Since the first elastic spring and the second elastic spring are wound in mutually opposite directions, and the third elastic spring and the fourth elastic spring are wound in opposite directions to each other, the ankle pedal has a central axis of the ankle pedal as a reference. Since the rotational resilience force applied to the front fixed shaft and the rotational resilience force applied to the rear fixed shaft of the ankle pedal act in opposite directions, the ankle pedal is characterized in that a force is applied to keep it level.

When the lengths of the first and second elastic springs and the third and fourth elastic springs are contracted, the energy accumulation of the first, second, third and fourth elastic springs increases, so that the rotational bullet of the ankle pedal When the user's ankle momentum is strengthened due to the increase in foot power and the lengths of the first and second extension springs and the third and fourth extension springs are extended, the first, second, third and fourth extension springs. Since the energy accumulation of the spring is reduced, it is characterized in that the user's ankle momentum is automatically or manually adjusted so that the ankle momentum is weakened due to the decrease in the elastic rotational force of the ankle pedal.

The ankle muscle strengthening unit, a driving motor provided in the main body; a pinion gear transmitting rotational power of the driving motor; a pair of straight-moving rack gears meshed with the pinion gear; guide members respectively connected to the rack gears and formed to guide linear movement by contacting the adjacent rack gears; And while the first, second, third, and fourth straight shafts are coupled to the guide member to adjust the length, they are connected to the front fixed shaft and the rear fixed shaft of the ankle pedal, respectively, so that the rotational elastic force of the ankle pedal It is characterized in that it comprises a; rotational elasticity control unit for adjusting the.

The rotational elasticity control unit is a first elastic spring whose length is adjusted by having one end seated and fixed in the groove of a seating member provided at the end of the first straight shaft and the other end connected to the front fixed shaft of any one of the ankle pedals. ; a second elastic spring whose one end is seated and fixed to the groove of the seating member provided at the end of the second straight shaft, and whose other end is connected to the rear fixing shaft of any one of the ankle pedals to adjust its length; a third elastic spring whose one end is seated and fixed to the groove of the seating member provided at the end of the third straight shaft, and whose other end is connected to the other fixed front shaft of the ankle pedal to adjust its length; and a fourth elastic spring, one end of which is seated and fixed to the groove of the seating member provided at the end of the fourth straight shaft, and the other end is connected to the rear fixing shaft of the other ankle pedal to adjust its length. to be

Since the first elastic spring and the second elastic spring are wound in opposite directions, and the third elastic spring and the fourth elastic spring are wound in mutually opposite directions, the rotation of the ankle pedal relative to the central axis of the ankle pedal is Since the rotational resilience force applied to the front fixed shaft and the rotational resilience force applied to the rear fixed shaft of the ankle pedal act in opposite directions, the ankle pedal is characterized in that a force is applied to keep it level.

When the lengths of the first and second elastic springs and the third and fourth elastic springs are contracted, energy accumulation of the first, second, third and fourth elastic springs increases, so that the rotational bullet of the ankle pedal When the user's ankle momentum is strengthened due to the increase in foot force and the lengths of the first and second elastic springs and the third and fourth elastic springs are extended, the first, second, third and fourth elastic springs are extended. Since the energy accumulation of the spring is reduced, it is characterized in that the user's ankle momentum is automatically or manually adjusted so that the ankle momentum is weakened due to the decrease in the elastic rotational force of the ankle pedal.

The ankle muscle strengthening unit, a driving motor provided in the main body; a power conversion unit that converts rotational power of the drive motor into lifting and lowering power; a seesaw operation unit that receives power from the power conversion unit and converts the power from the lower surface of the ankle pedal to vertical movement; and a rotation elasticity control unit that is connected to the seesaw operation unit to adjust the length and is elastically supported on the lower surface of the ankle pedal to adjust the rotation elasticity of the ankle pedal.

The power conversion unit, a screw member connected to the shaft of the drive motor; an elevating member having a female thread engaged with the screw member to move up and down; a protruding member protruding in the longitudinal direction of the circumference of the elevating member; a guide member having a guide groove coupled to the protruding member to guide the elevation of the elevation member; and an operating shaft member formed on the elevating member and connected to the seesaw operating unit.

The seesaw operating unit may include a pair of pressing shaft members provided to be able to move up and down on the operating shaft member; Support members provided on both sides of the bottom surface of the main body, respectively; And a seesaw member which is supported on the upper side of the support member and operates a seesaw, and first, second, third, and fourth supports are respectively disposed on the bottom surface of the ankle pedal while being pressed by the pressing shaft member. to be characterized

The rotational elasticity control unit may include a first compression spring supported by a first support portion of the seesaw member and elastically supporting the front side of one of the ankle pedals; a second compression spring that is supported by the second support part of the seesaw member and elastically supports the rear side of one of the ankle pedals; a third compression spring supported by a third support part of the seesaw member and elastically supporting the front side of the other ankle pedal; and a fourth compression spring which is supported by the fourth support part of the seesaw member and elastically supports the rear side of the other ankle pedal.

When the ankle pedal is not used, the lengths of the first compression spring and the second compression spring and the lengths of the third compression spring and the fourth compression spring are maintained the same, so that the ankle pedal rotates the central axis. It is characterized in that a force is applied to maintain the horizontality as a reference.

When the lengths of the first and second compression springs and the third and fourth compression springs are contracted by the rise of the seesaw member, the energy accumulation of the first, second, third and fourth compression springs increases. Therefore, when the user's ankle momentum is strengthened due to the increase in the rotational elasticity of the ankle pedal, and the lengths of the first and second compression springs and the third and fourth compression springs are extended by the descent of the seesaw member. Since the energy accumulation of the first, second, third, and fourth compression springs decreases, the user's ankle momentum is automatically or manually adjusted so that the ankle momentum is weakened due to a decrease in the elastic rotational force of the ankle pedal.

The frame includes a pedal rotation unit for strengthening the user's thigh muscle strength, and the pedal rotation unit includes a pair of front forks connected upward from the frame; a flywheel that is connected to the front fork and rotates; a crankshaft rotatably provided on both sides of the flywheel; and a rotation pedal provided at an end of the crankshaft.

The frame is characterized in that the knee fixing portion for fixing the knee of the user seated on the chair is provided.

The knee fixing part is provided on the front side of the chair, and a support strap member extending to a set length on the upper side of the frame; a cover member integrally fixed to an end portion of the support strap member and covering the upper side of the knee with a curved seating groove; and a mounting portion provided on the cover member and fixed to the opposite side surface of the cover member while covering the lower surface of the knee.

The mounting portion may include a plurality of through-holes formed through one side of the cover member; a fastening member installed by being inserted into the through hole; a band member inserted into and fixed to the fastening member and surrounding the lower surface of the knee; a bracket member that covers the band member and is tightly fixed to the cover member; and a plurality of fastening members fastened to the fastening member to constrain the band member.

The band member is characterized in that it is constrained to the cover member by a restraining part.

An indoor bicycle equipped with an ankle exercise device according to the present invention converts the power of a driving motor provided in the main body to at least one of a bevel gear driving method, a link driving method, a rack and pinion driving method, or a seesaw driving method. By twisting two springs on both sides of the left and right sides or changing the length to increase or decrease the energy, the user's ankle motion is manually or automatically adjusted according to the user's physical condition by varying the rotational elastic force applied to the pedal in multiple stages. The user's ankle momentum can be optimized according to each person's physical condition.

In addition, the present invention, since the knee fixing part is mounted on the user's knee to catch the shaking of the knee, when using the ankle muscle strengthening part, the user's body can be prevented from shaking, thereby maximizing the user's ankle rotation momentum.

1 is an external perspective view of an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
2 is a perspective view of using an ankle pedal after sitting on a chair and attaching a knee fixing part in an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
3 is a perspective view of a main body showing an ankle muscle strengthening unit according to the first embodiment in an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
4 is a perspective view of an assembled body in an operating state showing an ankle muscle strengthening unit according to the first embodiment in an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
FIG. 5 is a perspective view of a main part of FIG. 3 .
6 is a side view showing an operating state of an ankle pedal according to the first embodiment in an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
7 is a perspective view of a main body showing an ankle muscle strengthening unit according to a second embodiment of an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
8 is an assembled perspective view of a main body showing an ankle muscle strengthening unit according to a second embodiment in an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
9 is a perspective view of the main part of the ankle muscle strengthening unit according to the second embodiment of the present invention.
10 is a side view showing an operating state of an ankle pedal according to a second embodiment of an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
11 is a perspective view of a main body showing an ankle muscle strengthening unit according to a third embodiment of an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
12 is an assembled perspective view of a main body showing an ankle muscle strengthening unit according to a third embodiment in an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
Fig. 13 is a cross-sectional view along line AA of Fig. 11;
14 is a side view showing an operating state of an ankle pedal according to a third embodiment of an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
15 is a perspective view of a main body showing an ankle muscle strengthening unit according to a fourth embodiment of an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
16 is an assembled perspective view of a main body showing an ankle muscle strengthening unit according to a fourth embodiment in an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
17 is a perspective view of the main part of the ankle muscle strengthening unit according to the fourth embodiment of the present invention.
18 is a side view showing an operating state of an ankle pedal according to a fourth embodiment in an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
19 is an exploded perspective view of a knee fixing part in an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.
20 is a perspective view of a knee fixing unit in use in an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention.

Hereinafter, an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, definitions of these terms will have to be made based on the content throughout this specification.

1 is an external perspective view of an indoor bicycle equipped with an ankle exercise machine according to an embodiment of the present invention, and FIG. 2 is an indoor bicycle equipped with an ankle exercise machine according to an embodiment of the present invention, seated on a chair, and a knee fixing part. It is a perspective view of using an ankle pedal after installing.

3 is a perspective view of a body showing an ankle muscle strengthening unit according to a first embodiment of an indoor bicycle equipped with an ankle exercise machine according to an embodiment of the present invention, and FIG. 4 is an ankle exercise machine according to an embodiment of the present invention. In the provided indoor bicycle, it is an assembled perspective view of the operating state of the main body showing the ankle muscle strengthening unit according to the first embodiment, FIG. 5 is a perspective view of the main part of FIG. 3, and FIG. 6 is an ankle exercise device according to an embodiment of the present invention It is a side view showing an operating state of the ankle pedal according to the first embodiment in the equipped indoor bicycle.

7 is a perspective view of a main body showing an ankle muscle strengthening unit according to a second embodiment of an indoor bicycle equipped with an ankle exercise machine according to an embodiment of the present invention, and FIG. 8 is an ankle exercise machine according to an embodiment of the present invention. In the equipped indoor bicycle, it is an assembled perspective view of the operating state of the main body showing the ankle muscle strengthening unit according to the second embodiment. This is a side view showing an operating state of the ankle pedal according to the second embodiment in the indoor bicycle equipped with the ankle exercise device according to the embodiment.

11 is a perspective view of a main body showing an ankle muscle strengthening unit according to a third embodiment of an indoor bicycle equipped with an ankle exercise machine according to an embodiment of the present invention, and FIG. 12 is an ankle exercise machine according to an embodiment of the present invention. In the equipped indoor bicycle, it is a perspective view of an operating state of the main body showing the ankle muscle strengthening unit according to the third embodiment, FIG. 13 is a cross-sectional view taken along line A-A of FIG. 11, and FIG. It is a side view showing an operating state of the ankle pedal according to the third embodiment in the equipped indoor bicycle.

15 is a perspective view of a main body showing an ankle muscle strengthening unit according to a fourth embodiment of an indoor bicycle equipped with an ankle exercise machine according to an embodiment of the present invention, and FIG. 16 is an ankle exercise machine according to an embodiment of the present invention. In the provided indoor bicycle, it is an assembled perspective view of the operating state of the main body showing the ankle muscle strengthening unit according to the fourth embodiment, and FIG. 17 is a perspective view of the main part of the ankle muscle strengthening unit according to the fourth embodiment of the present invention. This is a side view showing an operating state of the ankle pedal according to the fourth embodiment in the indoor bicycle equipped with the ankle exercise device according to the embodiment.

19 is an exploded perspective view of a knee fixing part in an indoor bicycle equipped with an ankle exercise machine according to an embodiment of the present invention, and FIG. 20 is an exploded perspective view of a knee fixing part in an indoor bicycle equipped with an ankle exercise machine according to an embodiment of the present invention. It is a perspective view of the state of use of the government.

1 to 20, an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention includes a frame 10, a body 20, ankle pedals 30 and 32, and an ankle muscle strengthening unit. (100) (200) (300) (400).

Although not shown in detail, an indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention is grafted with a metaverse that implements a three-dimensional virtual world in which social, economic, and cultural activities are performed like the real world. it is possible to use

For example, by combining the momentum with the virtual world, such as going up and down places such as mountains and rivers, the effect of making it work in the virtual world by making it hard when climbing a hill and making it move effortlessly when running on flat ground It can be configured to work in conjunction with the metaverse to enhance the exercise effect by allowing the user to exercise continuously without getting bored.

The frame 100 is provided with a pair of legs 12 provided at the front and rear, and has a configuration in which a chair 14 is installed.

The frame 100 may include a pedal rotation unit 40 for strengthening the user's thigh muscle strength.

The pedal rotation unit 40 includes a pair of front forks 42 connected upwardly from the frame 10, a flywheel 44 connected to the front forks 42 and rotating, and rotation on both sides of the flywheel 44. It includes a possibly provided crankshaft 46 and a rotation pedal 48 provided at an end of the crankshaft 46.

A support 16 is connected to the upper side of the front fork 42, and a handle 18 for steering is provided on the upper side of the support 16. A brake knob may be provided on the handle 18 .

Referring to FIGS. 1 , 19 and 20 , the frame 10 may include a knee fixing part 50 for fixing the knees of a user seated on a chair 14 .

The knee fixing part 50 is when the user steps on the ankle pedals 30 and 32 and operates the ankle muscle strengthening parts 100, 200, 300 and 400 to strengthen the strength of the ankle, the knee shakes. It is a configuration that strengthens the calf by strengthening the muscle strength of the ankle by firmly holding the two knees to prevent the exercise effect from decreasing.

The knee fixing part 50 is provided on the front side of the chair 14 and is integrally fixed to a support strap member 52 extending to a set length on the upper side of the frame 10 and an end of the support strap member 52. and a cover member 54 covering the upper side of the knee with the flexion seating groove 56, respectively, and a mounting portion provided on the cover member 54 and fixed to the opposite side of the cover member 54 while covering the lower surface of the knee. (60).

The support strap member 52 is firmly fixed to the cover member 54 by the connection fixing part 70 .

The connecting portion 70 is provided on the cover member 54 and passes through the load supporting member 71 in which the installation hole 72 is formed and the installation hole 72 of the load support member 71, and then supports the load. It is caught on the rear side of the member 71 and includes a support member 73 to which the support strap member 52 is integrally coupled to support the load applied to the support strap member 52.

The load supporting member 71 protrudes in the longitudinal direction in an arc shape on the upper side of the center portion of the cover member 54 .

The mounting portion 60 includes a plurality of through-holes 61 formed through one side of the cover member 54, a fastening member 62 installed by being inserted into the through-holes 61, and inserted into the fastening member 62. A band member 63 that is fixed and covers the lower surface of the knee, a bracket member 64 that covers the band member 63 and closely fixes it to the cover member 54, and is fastened to the fastening member 62 to form a band member ( 63) includes a plurality of fastening members 65 for restraining.

The fastening member 62 includes a bolt or screw, and the fastening member 65 includes a nut.

The band member 63 is constrained to the cover member 54 by the restraining part 80 .

The restraining part 80 is a plurality of fitting holes 81 provided at set intervals in the longitudinal direction of the band member 63 and a support member installed on the cover member 54 and into which the band member 63 is inserted. (82) and a restraining member (83) provided on the support member (82) and inserted into any one fitting hole (81) to restrain the user's knee.

The restraining member 83 is rotatably installed by the hinge shaft 84 so as to be inserted into the installation groove 72 formed in the support member 82 and rotated.

The band member 63 seats the curved seating groove 56 of the cover member 54 on the upper side of the user's knees, respectively, and then extends downward to the mounting portion 60 of the cover member 54 to the lower side of the user's knee. After winding it, it moves to the upper side of the opposite cover member 54, passes through the support member 82 of the restraining part 80, and inserts the restraining member 83 into any one of the plurality of fitting holes 81 By walking, both knees of the user can be firmly restrained.

At this time, as the band member 63 is wound in a form wrapped around one side of the knee, it receives a force to move upward in a state caught on the restraining member 83, so the band member 63 cannot be separated from the restraining member 83. absolutely prevented.

The ankle muscle strengthening units 100, 200, 300, and 400 are provided on the main body 20 and are connected to the front and rear sides of the ankle pedal 30 (32), respectively, to the user's ankle seated on the chair 14. It is a structure that strengthens the muscles.

The ankle muscle strengthening units 100, 200, 300, and 400 rotate the ankle pedals 30 and 32 forward and backward at a set angle θ, and strengthen the user's calf muscles. Conventional indoor bicycles mainly used the rotation pedal 48 of the pedal rotation unit 40 to strengthen the thigh muscles.

As shown in FIGS. 3 to 6 , the ankle muscle strengthening unit 100 according to the first embodiment will be described.

The ankle muscle strength strengthening unit 100 includes a drive motor 102 provided in the main body 2, a drive bevel gear 104 for converting rotational power of the drive motor 102, and both sides of the drive bevel gear 104. A pair of driven bevel gears 106 that are provided in each to convert rotational force into a right angle and rotate in opposite directions to each other, and a pair of first and third connecting shafts that are connected to the driven bevel gears 106 and rotate, respectively ( 108) 112, the first and third driving spur gears 116 and 120 provided on the first and third connecting shafts 108 and 112 to rotate, and the first and third driving spur gears ( The second and fourth driving spur gears 118 and 122 that are meshed with 116 and 120 and rotate in opposite directions, and are shaft-coupled with the second and fourth driving spur gears 118 and 122 to rotate in the opposite direction, The second and fourth connection shafts 110 and 114 rotating in opposite directions with respect to the third connection shaft 108 and 112, and the first, second, third and fourth connection shafts 108 and 110, 112 and 114, respectively, connected to the front fixed shaft 150 and the rear fixed shaft 160 of the ankle pedals 30 and 32, respectively, to control the rotational elasticity of the ankle pedals 30 and 32 It includes a rotational elasticity control unit 130.

The rotational elasticity control unit 130 is connected to the first connecting shaft 108 and is formed to be wound or unwound according to the forward and reverse rotation of the drive motor 102, and the front side fixed shaft of any one of the ankle pedals 30 ( 150) is connected to the first coil spring 132 and the second connecting shaft 110 to be wound or unwound according to the forward and reverse rotation of the driving motor 102, and about the first coil spring 132 The second coil spring 134 wound in the opposite direction and installed on the rear fixed shaft 160 of any one of the ankle pedals 30 is connected to the third connecting shaft 112 to perform forward and reverse rotation of the drive motor 102. It is formed to be wound or unwound along, and is connected to the third coil spring 136 installed on the front fixed shaft 150 of the other ankle pedal 32 and the fourth connecting shaft 114 to drive the motor 102 The fourth coil spring 138 is formed to be wound or unwound according to the forward and reverse rotation of the third coil spring 136 and is wound in the opposite direction to the third coil spring 136 and installed on the rear fixed shaft 160 of the other ankle pedal 32 includes

The first, second, third, and fourth coil springs 132, 134, 136, and 138 are respectively connected to the front fixed shaft 150 and the rear fixed shaft 160 of the ankle pedals 30 and 32 to rotate. It is provided in the guide housing 140 having a rotation guide hole 142 to do.

The rotation guide hole 142 is formed by the rotation angle θ of the front fixing shaft 150 and the rear fixing shaft 160 of the ankle pedals 30 and 32.

The front fixing shaft 150 and the rear fixing shaft 160 of the ankle pedals 30 and 32 are formed on the center line of the ankle pedals 30 and 32, like the central axis 34.

Since the first coil spring 132 and the second coil spring 134 are wound in opposite directions, and the third coil spring 136 and the fourth coil spring 138 are wound in opposite directions, the ankle pedal 30 ) Based on the central axis 34 of (32), the rotational resilience force applied to the front fixed shaft 150 of the ankle pedals 30 and 32 and the rear fixed shaft 160 of the ankle pedals 30 and 32 Since the rotational resilience applied to each acts in the opposite direction, the ankle pedals 30 and 32 are always applied with a force to keep them level. Thus, when the user does not step on the ankle pedals 30 and 32, as shown in the upper drawing of FIG. 6, the ankle pedals 30 and 32 remain horizontal.

When the first and second coil springs 132 and 134 and the third and fourth coil springs 136 and 138 are wound, the first, second, third and fourth coil springs 132, 134, Since the energy accumulation of 136 and 138 increases, the user's ankle momentum is strengthened due to the increase in the elastic rotational force of the ankle pedals 30 and 32.

In addition, when the first and second coil springs 132 and 134 and the third and fourth coil springs 136 and 138 are released, the first, second, third and fourth coil springs 132 and 134 , 136, 138), the user's ankle momentum is weakened due to the decrease in the rotational elasticity of the ankle pedals 30 and 32, since the energy accumulation is reduced.

In this way, the operation of the rotational elasticity control unit 130 can be automatically or manually controlled. In addition, the intensity of the elasticity of the rotation elasticity control unit 130 may be automatically adjusted through the control unit in conjunction with the metaverse, or it may be manually adjusted in multiple stages (about 4 to 5 stages).

Referring to FIG. 4 , the elastic force reinforcing state of the rotation elastic force control unit 130 will be examined.

When the drive motor 102 is rotated in the direction of the arrow (clockwise from the top), the driven bevel gears 106 meshed with the drive bevel gear 104 rotate in opposite directions.

Subsequently, among the driven bevel gears 106, the left driven bevel gear 106 rotates the first driving spur gear 116 to rotate the first connecting shaft 108 clockwise, and among the driven bevel gears 106 The driven bevel gear 106 on the right rotates the third driving spur gear 120 to rotate the third connecting shaft 112 clockwise.

At this time, since the first coil spring 132 and the third coil spring 136 are wound in a clockwise direction based on the first and third connecting shafts 108 and 112, the first coil spring 132 and the third coil spring 132 Since the energy of the coil spring 136 is gradually accumulated and maintained in an increasing state, the rotational elasticity increases, so the momentum of the ankle pedals 30 and 32 is strengthened.

Meanwhile, the second and fourth driving spur gears 118 and 122 meshed with the first and third driving spur gears 116 and 120 and the second and fourth driving spur gears 118 and 122 The coupled second and fourth connection shafts 110 and 114 rotate in opposite directions with respect to the first and third connection shafts 108 and 112 . At this time, since the second coil spring 134 and the fourth coil spring 138 are wound in a counterclockwise direction based on the second and fourth connecting shafts 110 and 114, the second coil spring 134 and the second coil spring 134 Since the energy of the 4-coil spring 138 is also gradually accumulated and maintained in an increasing state, the torque resilience increases, so that the momentum of the ankle pedals 30 and 32 can be strengthened.

When the resilient force weakening state of the rotational resilience control unit 130 reverses the operating process of the drive motor 102 of FIG. 4, the first, second, third, and fourth coil springs 132, 134, and 136 , 138) is released. A detailed description will be omitted because it is the reverse process of the above operation process.

As shown in FIGS. 7 to 10 , the ankle muscle strengthening unit 200 according to the second embodiment will be described.

Ankle muscle strengthening unit 200 includes a drive motor 202 provided in the main body 20, a power conversion unit 210 for converting rotational power of the drive motor 202 into lifting and moving power, and a power conversion unit 210. ) Receiving the power of the ankle pedals 30 and 32, the front and rear sides of the ankle pedals 30 and 32 are connected to the link operating unit 220 that converts to straight motion, and the link operating unit 220 is connected to adjust the length, while the ankle pedal It includes a rotation elasticity control unit 230 connected to the front fixation shaft 150 and the rear fixation shaft 160 of (30) (32) to adjust the rotation elasticity of the ankle pedals 30 and 32. .

The power conversion unit 210 includes a screw member 211 connected to the shaft of the driving motor 202, a lifting member 212 having a female thread engaged with the screw member 211 to move up and down, and a lifting member 212 ) A protruding member 213 protruding in the vertical direction around the circumference, a guide member 214 having a guide groove 215 coupled to the protruding member 213 to guide the elevation of the elevating member 212, and It is formed on the member 212 and includes an operating shaft member 216 connected to the link operating unit 220 .

The link operating unit 220 is connected to the actuating shaft member 216, a horizontally disposed support link member 221, coupled to the support link member 221, and a pair of inclined links connected at an angle to both left and right sides. The first and second members 222 and the inclined link member 222 are horizontally connected to both sides and are disposed in the direction of the front fixing shaft 150 and the rear fixing shaft 160 of the ankle pedals 30 and 32. , It includes the third and fourth straight link members (223, 224, 225, 226).

The operating shaft member 216 is inserted into the installation hole formed in the planar installation portion 217 of the support link member 221 and is fixed by screwing through the nut member 218. The installation portion 217 may be formed integrally by dividing the support link member 221 into two pieces based on the center of the support link member 221, or may be integrally formed into one piece from the center of the support link member 221.

In the rotational elasticity control unit 230, one end is seated and fixed to the groove of the seating member 228 provided at the end of the first straight link member 223, and the other end is fixed to the front of any one of the ankle pedals 30. One end is seated and fixed to the groove part of the first extension spring 232 connected to the shaft 150 and the length is adjusted, and the seating member 228 provided at the end of the second straight link member 224, and the other end is either The second extension spring 234, which is connected to the rear fixing shaft 160 of one ankle pedal 30 and whose length is adjusted, and the groove portion of the seating member 228 provided at the end of the third straight link member 225 One end is seated and fixed, the other end is connected to the front fixing shaft 150 of the other ankle pedal 32, the third elastic spring 236, the length of which is adjusted, and the end of the fourth straight link member 226 Includes a fourth extension spring 238, one end of which is seated and fixed to the groove of the seating member 228 provided in, and the other end is connected to the rear fixing shaft 160 of the other ankle pedal 32 to adjust the length. do.

The first, second, third, and fourth extension springs 232, 234, 236, and 238 are connected to the front fixed shaft 150 and the rear fixed shaft 160 of the ankle pedals 30 and 32, respectively, to rotate. It is provided in the guide housing 240 having a rotation guide hole 242 to do.

The rotation guide hole 242 is formed by the rotation angle θ of the front fixing shaft 150 and the rear fixing shaft 160 of the ankle pedals 30 and 32.

The front fixing shaft 150 and the rear fixing shaft 160 of the ankle pedals 30 and 32 are formed on the center line of the ankle pedals 30 and 32, like the central axis 34.

Since the first elastic spring 232 and the second elastic spring 234 are wound in opposite directions to each other, and the third elastic spring 236 and the fourth elastic spring 238 are wound in mutually opposite directions, the ankle pedal 30 ) Based on the central axis 34 of (32), the rotational resilience force applied to the front fixed shaft 150 of the ankle pedals 30 and 32 and the rear fixed shaft 160 of the ankle pedals 30 and 32 Since the rotational resilience applied to each acts in the opposite direction, the ankle pedals 30 and 32 are applied with a force to keep them level. Accordingly, when the user does not step on the ankle pedals 30 and 32, as shown in the upper drawing of FIG. 9, the ankle pedals 30 and 32 remain horizontal.

When the lengths of the first and second extension springs 232 and 234 and the third and fourth extension springs 236 and 238 are contracted, the first, second, third and fourth extension springs 232, Since the energy accumulation of the 234, 236, and 238 increases, the user's ankle momentum is strengthened due to the increase in the elastic rotational force of the ankle pedals 30 and 32.

When the lengths of the first and second extension springs 232 and 234 and the third and fourth extension springs 236 and 238 are extended, the first, second, third and fourth extension springs 232, Since the energy accumulation of the 234, 236, and 238 is reduced, the user's ankle momentum is weakened due to the decrease in the torque elasticity of the ankle pedals 30 and 32.

In this way, the operation of the rotational elasticity control unit 230 can be automatically or manually controlled. In addition, the elasticity of the rotational elasticity control unit 230 may be automatically adjusted in intensity through the control unit in conjunction with the metaverse, or it may be manually adjusted in multiple stages (about 4 to 5 stages).

Referring to FIG. 8 , the elastic force reinforcing state of the rotation elastic force control unit 230 will be examined.

When the driving motor 202 is rotated, the screw member 211 coupled to the shaft rotates, and the protruding member 213 of the elevating member 212 moves up and down in a straight line along the guide groove 215 of the guide member 214. do.

Then, the operation shaft member 216 provided at the end of the lifting member 212 lowers the support link member 211 of the link operating unit 220 downward, and the support link member 221 is provided on both sides, respectively Bend the inclined link member 222 downward.

Subsequently, when the plurality of straight link members 223, 234, 235, and 236 rotatably connected to the inclined link member 222 are moved straight to both sides, the first seated member 228 integrally provided at the end portion is respectively seated. The first, second, third and fourth extension springs 232, 234, 236 and 238 are pushed and contracted.

As such, the contracted first, second, third, and fourth elastic springs 232, 234, 236, and 238 increase the momentum of the ankle pedals 30 and 32 as energy is accumulated and the rotational elasticity increases. can be strengthened.

The state of weakening the elasticity of the rotational elasticity control unit 230 is reversed by the operation process of the drive motor 202 of FIG. , 238). A detailed description will be omitted because it is the reverse process of the above operation process.

As shown in FIGS. 11 to 14 , the ankle muscle strengthening unit 300 according to the third embodiment will be described.

Ankle muscle strengthening unit 300, the driving motor 302 provided in the main body 20, the pinion gear 304 for transmitting the rotational power of the driving motor 302, and the pinion gear 304 are engaged in a straight line A pair of moving rack gears 306, guide members 310 connected to the rack gears 306 and contacting adjacent rack gears 306 to guide linear movement; ), the first, second, third, and fourth straight shafts 312, 314, 316, and 318 are coupled to each other to adjust the length, and the front fixed shaft 150 of the ankle pedals 30 and 32 It includes a rotational elasticity control unit 330 connected to the rear fixing shaft 160 to adjust the rotational elasticity of the ankle pedals 30 and 32 .

Referring to FIG. 13 , the guide member 310 is characterized in that forward and backward movement is guided on the rear surface of the rack gear 306 by the slot guide part 320 .

The slot guide portion 320 includes a slot groove portion 322 recessed in the longitudinal direction on the rear surface of the rack gear 306 and protruding from one side surface of the guide member 310 to be inserted into the slot groove portion 322, It includes a slot protrusion 324 for guiding the straight movement of the gear 306 and the guide member 310 in the opposite direction.

One end of the rotational elasticity control unit 330 is seated and fixed to the groove of the seating member 326 provided at the end of the first straight shaft 312, and the other end is the front fixed shaft of any one of the ankle pedals 30. One end is seated and fixed to the groove of the first elastic spring 332 connected to 150 and the length is adjusted, and the seating member 326 provided at the end of the second straight shaft 314, and the other end is either One end of the second elastic spring 334, which is connected to the rear fixing shaft 160 of the ankle pedal 30 and whose length is adjusted, and the groove of the seating member 326 provided at the end of the third straight shaft 316 Seating provided at the end of the third elastic spring 336, the length of which is adjusted by being seated and fixed, and the other end connected to the front fixing shaft 150 of the other ankle pedal 32, and the fourth straight shaft 318 It includes a fourth elastic spring 338, one end of which is seated and fixed to the groove of the member 326 and the other end connected to the rear fixing shaft 160 of the other ankle pedal 320 to adjust the length.

The first, second, third, and fourth elastic springs 332, 334, 336, and 338 are respectively connected to the front fixed shaft 150 and the rear fixed shaft 160 of the ankle pedals 30 and 32 to rotate. It is provided in the guide housing 340 having a rotation guide hole 342 to do.

The rotation guide hole 342 is formed by the rotation angle θ of the front fixing shaft 150 and the rear fixing shaft 160 of the ankle pedals 30 and 32.

The front fixing shaft 150 and the rear fixing shaft 160 of the ankle pedals 30 and 32 are formed on the center line of the ankle pedals 30 and 32, like the central axis 34.

Since the first elastic spring 332 and the second elastic spring 334 are wound in opposite directions, and the third elastic spring 336 and the fourth elastic spring 338 are wound in opposite directions, the ankle pedal 30 ) Based on the central axis 34 of (32), the rotational elasticity applied to the front fixed axis of the ankle pedal and the rotational elasticity applied to the rear fixed axis of the ankle pedal act in opposite directions, respectively, so that the ankle A force is applied to the pedal to keep it level. Thus, as shown in the upper drawing of FIG. 13, if the user does not step on the ankle pedals 30 and 32, the ankle pedals 30 and 32 remain horizontal.

When the lengths of the first and second elastic springs 332 and 334 and the third and fourth elastic springs 336 and 338 are contracted, the first, second, third and fourth elastic springs 332, Since the energy accumulation of 334, 336, and 338 increases, the user's ankle momentum is strengthened due to the increase in the elastic rotational force of the ankle pedals 30 and 32.

When the lengths of the first and second elastic springs 332 and 334 and the third and fourth elastic springs 336 and 338 are extended, the first, second, third and fourth elastic springs 332, Since the energy accumulation of the 334, 336, and 338 is reduced, the user's ankle momentum is weakened due to the decrease in the torque elasticity of the ankle pedals 30 and 32.

In this way, the operation of the rotational elasticity control unit 330 can be automatically or manually controlled. In addition, the intensity of the elasticity of the rotation elasticity control unit 330 may be automatically adjusted through the control unit in conjunction with the metaverse, or it may be manually adjusted in multiple stages (about 4 to 5 stages).

Referring to FIG. 11, the elastic force reinforcing state of the rotation elastic force control unit 330 will be examined.

When the drive motor 302 rotates, the pinion gear 304 coupled to the shaft rotates, and the rack gear 306 meshed with both sides moves linearly in the longitudinal direction.

Then, the guide member 310 connected to the rack gear 306 and formed in an L shape is moved linearly while covering the rear surface of the adjacent rack gear 306 . At this time, the slot protrusion 324 protruding from one side of the guide member 310 guides the forward movement along the slot groove 322 recessed into the rear surface of the rack gear 306 .

Subsequently, when the guide member 310 moves straight to both sides, the first, second, third, and fourth straight shafts 312, 314, 316, and 318 formed integrally with the guide member 310 move straight. , The first, second, third and fourth elastic springs 332, 334, 336 and 338 seated on the seating member 326 are pushed and contracted.

As described above, the contracted first, second, third, and fourth elastic springs 332, 334, 336, and 338 increase the momentum of the ankle pedals 30 and 32 as energy is accumulated and the rotational elasticity increases. can be strengthened.

The state of weakening the elastic force of the rotation elastic force control unit 330 is reversed by the operation process of the drive motor 302 of FIG. 11, the first, second, third and fourth elastic springs 332, 334 and 336 , 338). A detailed description will be omitted because it is the reverse process of the above operation process.

As shown in FIGS. 15 to 18 , the ankle muscle strengthening unit 400 according to the fourth embodiment will be described.

Ankle muscle strengthening unit 400 includes a drive motor 402 provided in the main body 20, a power conversion unit 410 for converting rotational power of the drive motor 402 into lifting and moving power, and a power conversion unit 410. ) Receiving power from the ankle pedals 30 and 32, the seesaw operating unit 420 converts to vertical movement at the bottom of the pedals 30 and 32, and the length is adjusted by being connected to the seesaw operating unit 420, and the ankle pedal 30 It includes a rotational elasticity control unit 430 which is elastically supported on the bottom surface of each of the ankle pedals 30 and 32 to adjust the rotational elasticity of the ankle pedals 30 and 32.

The power conversion unit 410 includes a screw member 411 connected to the shaft of the driving motor 402, a female screw thread engaged with the screw member 411 to move vertically, and a lifting member 412. ) A protruding member 413 protruding in the vertical direction around the circumference, a guide member 414 having a guide groove 415 coupled to the protruding member 413 to guide the elevation of the elevating member 412, and It includes an operating shaft member 416 formed on the member 412 and connected to the seesaw operating unit 420 .

The seesaw operating unit 420 includes a pressing shaft member 421 provided to be able to move up and down on the operating shaft member 416, a support member 422 provided on both sides of the bottom surface of the main body 20, and a support The first, second, third, and fourth supports 424 and 425 on the lower surfaces of the ankle pedals 30 and 32 while being supported on the upper side of the member 422 for seesaw operation and being pressed by the pressing shaft member 421 , 426, and 427 include a seesaw member 423 disposed respectively.

The rotational elasticity control unit 430 includes a first compression spring 432 supported by the first support 424 of the seesaw member 423 and elastically supporting the front side of one of the ankle pedals 30, and the seesaw member. The second compression spring 434 supported by the second support part 425 of 423 and elastically supporting the rear side of any one of the ankle pedals 30 and supported by the third support part 426 of the seesaw member 423 The third compression spring 436 elastically supports the front side of the other ankle pedal 32 and the fourth support portion 427 of the seesaw member 423 supports the rear side of the other ankle pedal 32. It includes a fourth compression spring 438 for elastic support.

The first, second, third, and fourth support parts 424, 425, 426, and 427 are exposed through the open hole 440 of the main body 20 and move up and down.

When not using the ankle pedals 30 and 32, the lengths of the first compression spring 432 and the second compression spring 434 and the length of the third compression spring 436 and the fourth compression spring 438 Since is always kept the same, the ankle pedals 30 and 32 are applied with a force to keep them horizontal with respect to the central axis 34.

When the lengths of the first and second compression springs 432 and 434 and the third and fourth compression springs 436 and 438 are contracted by the end side elevation of the seesaw member 423, the first and second compression springs 432 and 434 are contracted. Since the energy accumulation of the third and fourth compression springs 332, 434, 436, and 438 increases, the user's ankle momentum is strengthened due to the increase in the elastic rotational force of the ankle pedals 30 and 32.

When the lengths of the first and second compression springs 423 and 424 and the third and fourth compression springs 436 and 438 are extended by the lowering of the end side of the seesaw member 423, the first and second compression springs 423 and 424 are extended. Since the energy accumulation of the third and fourth compression springs 432, 434, 436, and 438 is reduced, the amount of motion of the user's ankle is weakened due to the decrease in the elasticity of rotation of the ankle pedals 30 and 32.

In this way, the operation of the rotational elasticity control unit 430 can be automatically or manually controlled. That is, the intensity of the elasticity of the rotation elasticity control unit 430 may be automatically adjusted through the control unit in conjunction with the metaverse, or it may be manually adjusted in multiple stages (about 4 to 5 stages).

Referring to FIG. 15, the elastic force reinforcing state of the rotation elastic force control unit 430 will be examined.

When the driving motor 402 rotates, the screw member 241 coupled to the shaft rotates, and the protruding member 413 of the elevating member 412 descends straight along the guide groove 415 of the guide member 414. do.

Then, when the operating shaft member 416 provided at the end of the elevating member 412 descends, the pressing shaft member 421 coupled to the operating shaft member 416 descends, and the seesaw member supported by the supporting member 422 (424) is pressed.

The seesaw member 424 seesaw operates based on the support member 422, so that the first, second, third, and fourth support parts 424, 425, 426, and 427 of the seesaw member 424 rise upward. , The lengths of the second, third and fourth compression springs 432, 434, 436 and 438 are contracted.

As described above, the contracted first, second, third, and fourth compression springs 432, 434, 436, and 438 increase the momentum of the ankle pedals 30 and 32 as the torque is increased while energy is accumulated. can be strengthened.

When the resilient force weakening state of the rotational resilience control unit 430 reverses the operating process of the drive motor 402 of FIG. 15, the first, second, third, and fourth compression springs 432, 434, and 436 , 438) is made by extending the length. A detailed description will be omitted because it is the reverse process of the above operation process.

Therefore, in the indoor bicycle equipped with an ankle exercise device according to an embodiment of the present invention, power of the drive motor provided in the main body is driven by at least one of a bevel gear driving method, a link driving method, a rack and pinion driving method, or a seesaw driving method. By switching to one method, twisting two springs each on both sides of the left and right or changing the length increases or decreases the energy, so the user's ankle motion can be adjusted manually or according to the user's physical condition by varying the rotational elastic force applied to the pedal in multiple stages. By automatically adjusting, the user's ankle momentum can be optimized according to each person's physical condition.

In addition, the present invention, since the knee fixing part is attached to the user's knee to catch the shaking of the knee, when using the ankle muscle strengthening part, the user's body can be prevented from shaking, thereby maximizing the user's ankle rotation momentum.

The present invention has been described with reference to the embodiments shown in the drawings, but this is only exemplary, and those skilled in the art can make various modifications and equivalent other embodiments. will understand

Therefore, the true technical protection scope of the present invention should be determined by the claims below.

10: frame 12: leg
14: chair 16: support
18: handle 20: body
30,32: ankle pedal 34: central axis
40: pedal rotation part 42: front fork
44: flywheel 46: crankshaft
48: rotary pedal 50: knee fixing part
52: support strap member 54: cover member
56: curved seating groove 60: mounting portion
61: through hole 62: fastening member
63: band member 64: bracket member
65: fastening member 70: connection
71: load support member 72: installation hole
73: support member 80: restraint
81: fitting hole 82: support member
83: restraining member 84: hinge axis
100: ankle muscle strengthening unit 102: drive motor
104: driven bevel gear 106: driven bevel gear
108: first connecting shaft 110: second connecting shaft
112: third connecting shaft 114: fourth connecting shaft
116: first drive spur gear 118: second drive spur gear
120: 3rd drive spur gear 122: 4th drive spur gear
130: rotation resilience control unit 132: first coil spring
134: second coil spring 136: third coil spring
138: fourth coil spring 140: guide housing
142: rotation guide hole 150: front axis fixed axis
160; Rear fixed axis 200: ankle strength strengthening unit
202: drive motor 210: power conversion unit
211: screw member 212: lifting member
213: protruding member 214: guide member
215: guide groove 216: operating shaft member
217: installation part 218: nut member
220: link operation unit 221: support link member
222: inclined link member 223: first straight link member
224: second straight link member 225: third straight link member
226: fourth straight link member 230: rotational elasticity control unit
232: first telescopic spring 234: second telescopic spring
236: third elastic spring 238: fourth elastic spring
240: guide housing 242: conference information hall
250: front fixed axis 260: rear fixed axis
300: ankle muscle strengthening unit 302: drive motor
304: pinion gear 306: rack gear
310: guide member 312: first straight axis
314: second straight axis 316: third straight axis
318: fourth straight axis 320: slot guide
322: slot groove portion 324: slot projection portion
326: seating member 330: rotational elasticity control unit
322: first elastic spring 324: second elastic spring
326: third elastic spring 328: fourth elastic spring
340: information housing 342: conference information hall
350: front fixed axis 360: rear fixed axis
400: ankle muscle strengthening unit 402: drive motor
410: power conversion unit 411: screw member
412: elevating member 413: protruding member
414: guide member 415: guide groove
416: operating shaft member 420: seesaw operating unit
421: pressing shaft member 422: support member
423: seesaw member 430: rotational elasticity control unit
432: first compression spring 434: second compression spring
436: third compression spring 438: fourth compression spring
440: open hole

Claims (26)

A frame provided with a pair of legs provided at the front and rear and on which a chair is installed;
a body provided in front of the frame;
A pair of ankle pedals for seating the feet of the user seated on the chair on both sides of the body and rotating the ankles forward and backward at a set angle based on a central axis; and
An ankle muscle strengthening unit provided in the main body and connected to the front and rear sides of the ankle pedal to strengthen the ankle muscle strength of the user seated on the chair.
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 1,
The ankle muscle strengthening unit,
a driving motor provided in the main body;
a driving bevel gear converting rotational power of the driving motor;
a pair of driven bevel gears provided on both sides of the driving bevel gear and rotating in opposite directions by converting rotational force into a right angle;
a pair of first and third connecting shafts connected to the driven bevel gear and rotating;
first and third drive spur gears provided on the first and third connecting shafts to rotate;
second and fourth driving spur gears engaged with the first and third driving spur gears and rotating in opposite directions;
second and fourth connection shafts coupled to the second and fourth driving spur gears and rotating in opposite directions with respect to the first and third connection shafts; and
A rotation elasticity control unit connected to the first, second, third, and fourth connection shafts, respectively, and connected to the front and rear fixed shafts of the ankle pedal to adjust the rotation and elasticity of the ankle pedal.
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 2,
The rotational elasticity control unit,
a first coil spring connected to the first connection shaft, wound or unwound according to forward and reverse rotation of the drive motor, and installed on a front-side fixed shaft of one of the ankle pedals;
A second coil connected to the second connecting shaft, formed to be wound or unwound according to forward and reverse rotation of the drive motor, and wound in the opposite direction to the first coil spring and installed on a rear fixed shaft of any one of the ankle pedals. spring;
a third coil spring connected to the third connection shaft, wound or unwound according to forward and reverse rotation of the driving motor, and installed on the other fixed front shaft of the ankle pedal; and
A fourth coil connected to the fourth connecting shaft, formed to be wound or unwound according to forward and reverse rotation of the driving motor, and wound in the opposite direction to the third coil spring and installed on the rear fixed shaft of the other ankle pedal. spring;
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 3,
Since the first coil spring and the second coil spring are wound in opposite directions, and the third and fourth coil springs are wound in opposite directions,
Since the rotational resilience force applied to the front fixed axis of the ankle pedal and the rotational resilience force applied to the rear fixed axis of the ankle pedal act in opposite directions with respect to the central axis of the ankle pedal, the ankle pedal is maintained horizontally. An indoor bicycle equipped with an ankle exercise device, characterized in that a force is applied.
According to claim 3,
When the first and second coil springs and the third and fourth coil springs are wound, the energy accumulation of the first, second, third and fourth coil springs increases, so that the rotational elasticity of the ankle pedal Due to the increase, the user's ankle momentum is strengthened,
When the first and second coil springs and the third and fourth coil springs are loosened, the energy accumulation of the first, second, third and fourth coil springs decreases, thereby reducing the elastic rotational force of the ankle pedal. An indoor bicycle equipped with an ankle exercise device, characterized in that automatically or manually adjusting so that the user's ankle momentum is weakened due to.
According to claim 1,
The ankle muscle strengthening unit,
a driving motor provided in the main body;
a power conversion unit that converts rotational power of the drive motor into lifting and lowering power;
a link operating unit that receives the power of the power conversion unit and converts the front and rear side of the ankle pedal into straight motion, respectively; and
A rotation elasticity control unit that is connected to the link operation unit to adjust the length and is connected to the front and rear fixed shafts of the ankle pedal to adjust the rotation and elasticity of the ankle pedal.
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 6,
The power conversion unit,
a screw member connected to the shaft of the driving motor;
an elevating member having a female thread engaged with the screw member to move up and down;
a protruding member protruding in the longitudinal direction of the circumference of the elevating member;
a guide member having a guide groove coupled to the protruding member to guide the elevation of the elevation member; and
An operating shaft member formed on the elevating member and connected to the link operating unit.
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 7,
The link operation unit,
a support link member connected to the operating shaft member and disposed horizontally;
Inclined link members coupled to the support link member and connected in a pair at an angle to both left and right sides; and
First, second, third, and fourth straight link members connected horizontally to both sides of the inclined link member and disposed in the direction of the front fixed axis and the rear fixed axis of the ankle pedal;
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 8,
The rotational elasticity control unit,
A first elastic spring whose one end is seated and fixed to the groove of the seating member provided at the end of the first straight link member and whose other end is connected to the front fixing shaft of any one of the ankle pedals to adjust its length;
A second elastic spring whose one end is seated and fixed to the groove of the seating member provided at the end of the second straight link member and whose other end is connected to the rear fixing shaft of any one of the ankle pedals to adjust its length;
A third extension spring having one end seated and fixed in the groove of the seating member provided at the end of the third straight link member, and the other end connected to the front side fixing shaft of the other ankle pedal to adjust its length; and
A fourth extension spring whose one end is seated and fixed to the groove of the seating member provided at the end of the fourth straight link member and whose other end is connected to the rear fixing shaft of the other ankle pedal to adjust its length.
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 9,
Since the first elastic spring and the second elastic spring are wound in opposite directions, and the third elastic spring and the fourth elastic spring are wound in mutually opposite directions,
Since the rotational resilience force applied to the front fixed axis of the ankle pedal and the rotational resilience force applied to the rear fixed axis of the ankle pedal act in opposite directions with respect to the central axis of the ankle pedal, the ankle pedal is maintained horizontally. An indoor bicycle equipped with an ankle exercise device, characterized in that a force is applied.
According to claim 9,
When the lengths of the first and second elastic springs and the third and fourth elastic springs are contracted, the energy accumulation of the first, second, third and fourth elastic springs increases, so that the rotational bullet of the ankle pedal Due to the increase in foot power, the user's ankle momentum is strengthened,
When the lengths of the first and second extension springs and the third and fourth extension springs are extended, energy accumulation of the first, second, third and fourth extension springs is reduced, so that the rotational bullet of the ankle pedal is reduced. An indoor bicycle equipped with an ankle exercise device, characterized in that automatically or manually adjusting so that the user's ankle momentum is weakened due to a decrease in foot power.
According to claim 1,
The ankle muscle strengthening unit,
a driving motor provided in the main body;
a pinion gear transmitting rotational power of the driving motor;
a pair of straight-moving rack gears meshed with the pinion gear;
guide members respectively connected to the rack gears and formed to guide linear movement by contacting the adjacent rack gears; and
While the first, second, third, and fourth straight shafts are coupled to the guide member to adjust the length, they are connected to the front fixed shaft and the rear fixed shaft of the ankle pedal, respectively, to provide rotational elasticity of the ankle pedal. A rotational elasticity control unit for adjusting;
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 12,
The rotational elasticity control unit,
a first elastic spring, one end of which is seated and fixed to the groove of a seating member provided at an end of the first straight shaft, and the other end is connected to the front fixing shaft of any one of the ankle pedals to adjust the length;
a second elastic spring whose one end is seated and fixed to the groove of the seating member provided at the end of the second straight shaft, and whose other end is connected to the rear fixing shaft of any one of the ankle pedals to adjust its length;
a third elastic spring whose one end is seated and fixed to the groove of the seating member provided at the end of the third straight shaft, and whose other end is connected to the other fixed front shaft of the ankle pedal to adjust its length; and
A fourth elastic spring, one end of which is seated and fixed to the groove of the seating member provided at the end of the fourth straight shaft, and the other end is connected to the rear fixing shaft of the other ankle pedal to adjust the length.
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 13,
Since the first elastic spring and the second elastic spring are wound in opposite directions, and the third elastic spring and the fourth elastic spring are wound in mutually opposite directions,
Since the rotational resilience force applied to the front fixed axis of the ankle pedal and the rotational resilience force applied to the rear fixed axis of the ankle pedal act in opposite directions with respect to the central axis of the ankle pedal, the ankle pedal is maintained horizontally. An indoor bicycle equipped with an ankle exercise device, characterized in that a force is applied.
According to claim 14,
When the lengths of the first and second elastic springs and the third and fourth elastic springs are contracted, energy accumulation of the first, second, third and fourth elastic springs increases, so that the rotational bullet of the ankle pedal Due to the increase in foot power, the user's ankle momentum is strengthened,
When the lengths of the first and second elastic springs and the third and fourth elastic springs are extended, since the energy accumulation of the first, second, third and fourth elastic springs is reduced, the rotational bullet of the ankle pedal An indoor bicycle equipped with an ankle exercise device, characterized in that automatically or manually adjusting so that the user's ankle momentum is weakened due to a decrease in foot power.
According to claim 1,
The ankle muscle strengthening unit,
a driving motor provided in the main body;
a power conversion unit that converts rotational power of the drive motor into lifting and lowering power;
a seesaw operation unit that receives power from the power conversion unit and converts the power from the lower surface of the ankle pedal to vertical movement; and
A rotation elasticity control unit that is elastically supported on the bottom surface of the ankle pedal and adjusts the rotation elasticity of the ankle pedal while being connected to the seesaw operation unit and adjusting the length.
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 16,
The power conversion unit,
a screw member connected to the shaft of the drive motor;
an elevating member having a female thread engaged with the screw member to move up and down;
a protruding member protruding in the longitudinal direction of the circumference of the elevating member;
a guide member having a guide groove coupled to the protruding member to guide the elevation of the elevation member; and
An operating shaft member formed on the elevating member and connected to the seesaw operating unit;
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 17,
The seesaw operating unit,
a pair of pressing shaft members provided to be able to move up and down on the operating shaft member;
Support members provided on both sides of the bottom surface of the main body, respectively; and
A seesaw member supported on the upper side of the support member for a seesaw operation, and first, second, third, and fourth supports respectively disposed on the bottom surface of the ankle pedal while being pressed by the pressure shaft member.
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 18,
The rotational elasticity control unit,
a first compression spring that is supported by the first support part of the seesaw member and elastically supports the front side of one of the ankle pedals;
a second compression spring that is supported by the second support part of the seesaw member and elastically supports the rear side of one of the ankle pedals;
a third compression spring supported by a third support part of the seesaw member and elastically supporting the front side of the other ankle pedal; and
A fourth compression spring supported by the fourth support of the seesaw member and elastically supporting the rear side of the other ankle pedal.
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 19,
When the ankle pedal is not used, the lengths of the first compression spring and the second compression spring and the lengths of the third compression spring and the fourth compression spring are maintained the same, so that the ankle pedal rotates the central axis. An indoor bicycle equipped with an ankle exercise device, characterized in that a force is applied to maintain the level as a reference.
According to claim 19,
When the lengths of the first and second compression springs and the third and fourth compression springs are contracted by the rise of the seesaw member, the energy accumulation of the first, second, third and fourth compression springs increases. Therefore, the user's ankle momentum is strengthened due to the increase in the rotational elasticity of the ankle pedal,
When the lengths of the first and second compression springs and the third and fourth compression springs are extended by the descending of the seesaw member, the energy accumulation of the first, second, third and fourth compression springs is reduced. Therefore, the indoor bicycle equipped with an ankle exercise device, characterized in that the automatic or manual adjustment so that the user's ankle momentum is weakened due to the decrease in the rotational elasticity of the ankle pedal.
According to claim 1,
The frame is provided with a pedal rotation unit for strengthening the user's thigh muscle strength,
The pedal rotation part,
a pair of front forks connected upward from the frame;
a flywheel that is connected to the front fork and rotates;
a crankshaft rotatably provided on both sides of the flywheel;
A rotation pedal provided at the end of the crankshaft;
An indoor bicycle equipped with an ankle exercise device comprising:
According to claim 1,
An indoor bicycle equipped with an ankle exercise device, characterized in that the frame is provided with a knee fixing part for fixing the knee of a user seated on a chair.
24. The method of claim 23,
The knee fixing part,
A support strap member provided on the front side of the chair and extending to a set length on the upper side of the frame;
a cover member integrally fixed to an end portion of the support strap member and covering the upper side of the knee with a curved seating groove; and
A mounting portion provided on the cover member and fixed to the opposite side surface of the cover member while surrounding the lower surface of the knee.
An indoor bicycle equipped with an ankle exercise device comprising:
25. The method of claim 24,
The mounting part,
a plurality of through-holes formed through one side of the cover member;
a fastening member installed by being inserted into the through hole;
a band member inserted into and fixed to the fastening member and surrounding the lower surface of the knee;
a bracket member that covers the band member and is tightly fixed to the cover member; and
A plurality of fastening members fastened to the fastening member to constrain the band member;
An indoor bicycle equipped with an ankle exercise device comprising:
26. The method of claim 25,
The indoor bicycle equipped with an ankle exercise mechanism, characterized in that the band member is constrained to the cover member by a restraining unit.

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