PEDAL-TYPE VIBRATIONAL APPARATUS

Abstract

 A pedal-type vibrational apparatus includes a seat body, a pedal assembly, a gear plate assembly, a drive assembly and an eccentric assembly, like a lever structure. By treading the pedal assembly, the gear plate assembly drives the drive assembly to rotate. The drive assembly is connected with the eccentric assembly. Thus users can fully strengthen the muscles of the body during exercise, and vibrationas generated by the eccentric assembly can stimulate the acupuncture points of the body to improve the blood circulation. The left and right pedals can be treaded in turn to continuously drive an eccentric assembly to rotate in the same direction so as to accelerate and increase vibrations.

Description

FIELD OF THE INVENTION

[0001] The present invention relates to fitness equipment, and more particularly, to a pedal-type vibrational apparatus capable of generating vibrations by treading pedals to enhance an exercise effect without requiring electric power.

BACKGROUND OF THE INVENTION

[0002] There is a vibration machine, also known as a blood circulation machine developed on the market. When the user stands on a vibration machine, the vibration machine generates vibrations to stimulate the soles of the feet, so that the blood flows to the soles of the feet. In the process of vibration, the user's body, such as the abdomen and legs, can swing together, providing an effect of outdoor sports. Besides, the space occupied by a vibration machine is small. Most of vibration machines can be stored easily. The vibration machine can be unfolded in a narrow space for use.

[0003] However, the drawback of this exercise machine is that the exercise machine needs electric power to drive a motor, so that an internal vibration unit can be actuated to generate vibrations. Due to the arrangement of the motor and other components, the overall structure is quite complicated and the human body is vibrated by the vibration machine. Therefore, the posture of use is limited, with less fun.

[0004] In order to solve the problem that the existing vibration machine needs electric power and has complicated structure, China Patent No. CN103705363B discloses an "non-motorized fat-burning machine". The non-motorized fat-burning machine includes a base and a vibrating seat. The middle portion of the base is provided with a first shaft. The middle portion of the vibrating seat is connected with the first shaft and can swing relative to the base. A second shaft parallel to the first shaft is fixed on the vibrating seat. The vibrating seat, at both sides of the second shaft, is pivoted with left and right rotating shafts. The left and right rotating shaft are equipped with left and right eccentric wheels. Unidirectional bearings are mounted between the left and right eccentric wheels and the left and right rotating shafts, respectively. The left and right rotating shafts are fixedly connected with driven gears, respectively. The base is fixedly connected with a first gear. The second shaft is sleeved with a second gear to mesh with the first gear. The second gear drives the driven gears on the left and right rotating shafts to rotate through a gear transmission mechanism. Through the gear transmission mechanism, the rotational speed of the driven gears on the left and right rotating shafts is greater than the rotational speed of the second gear.

[0005] The above structure does solve the defect of the electrically powered vibrating fitness equipment, however, the inventor finds that this patent still has the following defects: (1) The drive mode of this patent uses a bevel gear to drive a driven gear connected with the bevel gear. But in this design when the left and right sides of a cover ascend to a certain position, the mechanism may be jammed or cannot be operated smoothly. The reason is that the driven gears are rotated in different directions. When the cover is horizontal, there will be a jammed problem. (2) A further drawback of this patent is that since the driven gear is further connected to the eccentric wheel. It can be understood that when the pedals are treaded, the vibration is not continuous and the action is not smooth. In this design, the instantaneous clockwise/counterclockwise rotation easily leads to damage the connected teeth.

[0006] In the above structure, the unidirectional bearings are mounted between the left and right eccentric wheels and the left and right rotating shafts. The left and right rotating shafts are fixedly connected with the driven gears, respectively. Therefore, the left and right eccentric wheels are subjected to the respective unidirectional gears, one of the eccentric wheels is rotated, and the unidirectional bearing of the other eccentric wheel is idling without acceleration, reducing its vibrational effect. Moreover, the number of the components increase, resulting in increased costs. It really needs to be improved.

[0007] Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to solve these problems and develop a non-motorized pedal-type vibrational apparatus which has much fun and can enhance the blood circulation.

SUMMARY OF THE INVENTION

[0008] The primary object of the present invention is to provide a pedal-type vibrational apparatus. A pedal assembly drives a drive assembly to link an eccentric assembly to generate vibrations when the user treads pedals.

[0009] Another object of the present invention is to provide a pedal-type vibrational apparatus which is mainly man-powered to drive the whole structure so that it can be used at any time without consuming electric power. When in use, in addition to maintaining a balance, the user can fully exercise the muscles of the body to enhance metabolism.

[0010] A further object of the present invention is to provide a pedal-type vibrational apparatus which provides gear plates to drive a first linking gear and a second linking gear. The first linking gear and the second linking gear are provided with unidirectional bearings therein. Therefore, when rotated, a first transmission gear connected on a first linking shaft is rotated in a single direction. When the stepping frequency increases, the eccentric assembly can be accelerated to enhance the vibrational effect.

[0011] In order to achieve the aforesaid object, the pedal-type vibrational apparatus of the present invention comprises a seat body, a pedal assembly, a gear plate assembly, a drive assembly, and an eccentric assembly.

[0012] The seat body includes an I-shaped bottom base and a support frame. The pedal assembly, the gear plate assembly, the drive assembly and the eccentric assembly are mounted to the support frame. The support frame is provided with a plurality of shaft holes for mounting the pedal assembly, the gear plate assembly, the drive assembly and the eccentric assembly.

[0013] The pedal assembly is mounted on the seat body. The pedal assembly includes a main rod, a secondary rod, and two pedals. The main rod is axially connected to the support frame through a first shaft. The first shaft serves as a rotation center. Two ends of the main rod are provided with first mounting portions, respectively. The main rod is provided with a curved groove. The secondary rod is mounted to a lower end of the main rod under the first shaft. The secondary rod is connected through at least one second shaft passing through the curved groove of the main rod. The second shaft serves as a lower support member when the main rod is swung. Two ends of the secondary rod are provided with second mounting portions, respectively. The two pedals each have a pedal portion and a connecting portion. The connecting portion has an upper connecting hole and a lower connecting hole. The upper connecting holes of the two pedals are connected with the first mounting portions, respectively. The lower connecting holes of the two pedals are connected with the second mounting portions, respectively.

[0014] The gear plate assembly includes a first gear plate and a second gear plate. The first gear plate is mounted between the support frame and the main rod. The second gear plate is mounted between the secondary rod and the drive assembly. The first gear plate has a first curved surface corresponding to the curved groove. The first curved surface abuts against a lower end of the second shaft. The first gear plate has a lower curved gear rack. The second gear plate has a second curved surface. The second curved surface abuts against the lower end of the second shaft. The second gear plate has an upper curved gear rack.

[0015] The drive assembly includes a first linking gear, a second linking gear, a first linking shaft, a first transmission gear, and a second transmission gear. The first linking gear, the second linking gear, the first linking shaft and the first transmission gear are coaxially arranged. The first linking gear is meshed with the lower curved gear rack. The second linking gear is meshed with the upper curved gear rack. The first linking gear and the second linking gear are turned in opposite directions. Unidirectional bearings are mounted in the first linking gear and the second linking gear so that the first linking shaft is rotated in a single direction. The first transmission gear is mounted on the first linking shaft. The second transmission gear includes a first small gear and a large gear. The first small gear is meshed with the first transmission gear. The large gear drives the eccentric assembly to rotate.

[0016] The eccentric assembly includes a second small gear and an eccentric block. The second small gear is meshed with the large gear and driven by the large gear to rotate. The eccentric block is mounted on the second small gear. Vibrations occur when the second small gear is driven to rotate owing to the design of the eccentric block. The vibrations generated are transmitted to the seat body and further to the pedal assembly.

[0017] Through the above components, the user stands on the pedals and turns the pedals through the left and right feet. The main rod and the secondary rod generate a lever effect through the pedals, so that the first gear plate and the second gear plate are driven to swing back and forth. The multiple transmission of the drive assembly enables the eccentric assembly to rotate to generate vibrations. The first linking gear and the second linking gear generate one-way rotation for the first linking shaft. When the stepping frequency is high, the eccentric assembly can be accelerated to enhance the vibrational effect.

[0018] Therefore, in addition to maintaining a balance, the user can fully exercise the muscles of the body during exercise, and the vibrational effect can stimulate the acupuncture points of the feet and legs to improve the blood circulation and metabolism functions to achieve the purpose of physical health.

[0019] Preferably, the bottom base is provided with a plurality of cushion pads.

[0020] Preferably, the connecting portion of each of the pedals is provided with a cushion unit, and the cushion unit is an elastic cushion.

[0021] Alternatively, the connecting portion of each of the pedals is provided with a cushion unit, and the cushion unit is a compression spring.

[0022] Preferably, the diameter and the number of teeth of the first transmission gear and the large gear are larger than those of the first small gear and the second small gear.

[0023] Preferably, the pedal-type vibrational apparatus further comprises a housing to cover the seat body. The first mounting portions and the second mounting portions extend out of an outer side of the housing to form connecting shafts. The outer side of the housing is mounted with a rotating disc. The rotating disc is fitted on the connecting shafts. By rotating the rotating disc, the pedal assembly is actuated for the eccentric assembly to generate vibrations.

[0024] Preferably, the outer side of the housing is optionally connected with a rotatable seat pad. The seat pad is provided with a pair of brackets for a user to rest his/her legs thereon. When the user sits on the seat pad to swing, the drive assembly and the eccentric assembly in the housing are driven to rotate to generate vibrations.

[0025] Preferably, the first gear plate and the second gear plate of the gear plate assembly are mounted to the second mounting portions. When the pedals are treaded, the first gear plate and the second gear plate use the first shaft as the rotation center to drive the first linking gear and the second linking gear so that the drive assembly continuously drives the eccentric assembly to rotate.

[0026] Preferably, the gear plate assembly is assembled to be one-piece. The lower curved gear rack and the upper curved gear rack are formed on the same gear plate. The lower curved gear rack is meshed with a third linking gear. The upper curved gear rack is meshed with a fourth linking gear. The first linking gear, the second linking gear and the third linking gear are coaxially arranged. The fourth linking gear is axially connected to a fifth linking gear. The fifth linking gear is meshed with the second linking gear. The first linking gear and the second linking gear are provided with the unidirectional bearings. When the gear plate assembly is driven by the pedal assembly, the third linking gear is driven to drive the first linking gear or the second linking gear to rotate in a direction. The fourth linking gear and the fifth linking gear also rotate toward one side. The first linking gear is rotated idly in a certain direction through the unidirectional bearings so that the first linking shaft is rotated in the same direction.

[0027] Preferably, the drive assembly selectively uses a pulley and a transmission belt or uses a sprocket and a chain.

[0028] Through the above structure, the present invention can provide the following effects:

1. The present invention can choose a variety of drive ways for the overall structure to generate vibrations. Manufacturers can provide different types of products, such as an economy mode and a durable mode, according to the exercise state of different users. Each structure allows users to fully exercise every part of the body. The vibrational effect can stimulate the feet and legs to accelerate metabolism for health.

2. The present invention provides a variety of ways to use, not only a monotonous and single use, allowing users to exercise anytime, anywhere.

3. The present invention does not require the use of electricity, so it will not increase the electricity charge, achieving the advantages of exercise and energy saving.

4. Because the first linking gear and the second linking gear are connected through a unidirectional bearing, the first transmission gear can be driven to rotate in the same direction regardless of the forward or reverse rotation of the first linkage shaft during the operation. As the frequency of treading the pedals increases, the eccentric assembly can be accelerated to increase the vibrational effect.

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 

FIG. 1 and FIG. 2 are perspective views of the present invention;

FIG. 3 and FIG. 4 are exploded views of the present invention;

FIG. 5 is a schematic view of a pedal assembly of the present invention;

FIGS. 6-8 are schematic views of the present invention when in use;

FIG. 9 is a top view of the present invention;

FIG. 10 a side view of the present invention when in use;

FIG. 11 and FIG. 12 are schematic views in accordance with a second embodiment of the present invention;

FIG. 13 and FIG. 14 are schematic views in accordance with a third embodiment of the present invention;

FIG. 15 and FIG. 16 are schematic views in accordance with a fourth embodiment of the present invention;

FIG. 17 and FIG. 18 are schematic views in accordance with a fifth embodiment of the present invention; and

FIG. 19 is a schematic view in accordance with a sixth embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings.

[0031] Referring to FIG. 1 to FIG. 10, a pedal-type vibrational apparatus according to a first embodiment of the present invention comprises a seat body 10, a pedal assembly 20, a gear plate assembly 30, a drive assembly 40, and an eccentric assembly 50.

[0032] As shown in FIG. 1 to FIG. 10, the seat body 10 includes an I-shaped bottom base 11 and a support frame 12. The pedal assembly 20, the gear plate assembly 30, the drive assembly 40 and the eccentric assembly 50 are mounted to the support frame 12. The support frame 12 is provided with a plurality of shaft holes for mounting the pedal assembly 20, the gear plate assembly 30, the drive assembly 40 and the eccentric assembly 50. As shown in FIG. 1 to FIG. 10, the bottom base 11 is provided with a plurality of cushion pads 13. When in use, the pedal-type vibrational apparatus of the present invention is not directly contact with the ground, so it won't generate noises and the overall structure can be protected.

[0033] As shown in FIG. 1 to FIG. 10, the pedal assembly 20 is mounted on the seat body 10. The pedal assembly 20 includes a main rod 21, a secondary rod 22, and two pedals 23. The main rod 21 is axially connected to the support frame 12 through a first shaft 24. The first shaft 24 serves as a rotation center. Two ends of the main rod 21 are provided with first mounting portions 211, respectively. The main rod 21 is provided with a curved groove 212. The secondary rod 22 is mounted to a lower end of the main rod 21 under the first shaft 24. The secondary rod 22 is connected through at least one second shaft 25 passing through the curved groove 212 of the main rod 21. The second shaft 25 serves as a lower support member when the main rod 21 is swung. Two ends of the secondary rod 22 are provided with second mounting portions 221, respectively. Each pedal 23 has a pedal portion 231 and a connecting portion 232. The connecting portion 232 has an upper connecting hole 233 and a lower connecting hole 234. The upper connecting holes 233 of the two pedals 23 are connected with the first mounting portions 211, respectively. The lower connecting holes 234 of the two pedals 23 are connected with the second mounting portions 221, respectively. The connecting portion 232 of each pedal 23 is provided with a cushion unit 26 in order to avoid damages of the bottom base 11 caused by direct contact of the pedal 23 with the bottom base 11. The cushion unit 26 can be an elastic cushion or a compression spring, as shown in FIG. 3 and FIG. 4. In addition to the advantages described above, the compression spring that resists compressive force applied is used to protect the user's ankles and knees from knee pain after a long-term use. The main rod 21, the secondary rod 22 and the two pedals 23 form a parallelogram linkage structure. When a force is applied to the pedal 23 at one side, the pedal 23 at the other side ascends and the gear plate assembly 30 connected to the pedal assembly 20 is driven to move.

[0034] As shown in FIG. 1 to FIG. 10, the gear plate assembly 30 includes a first gear plate 31 and a second gear plate 32. The first gear plate 31 is mounted between the support frame 12 and the main rod 21. The second gear plate 32 is mounted between the secondary rod 22 and the drive assembly 40. The first gear plate 31 has a first curved surface 311 corresponding to the curved groove 212. The first curved surface 311 abuts against the lower end of the second shaft 25. The first gear plate 31 has a lower curved gear rack 312. The second gear plate 32 has a second curved surface 321. The second curved surface 321 abuts against the lower end of the second shaft 25. The second gear plate 32 has an upper curved gear rack 322. Both the upper curved gear rack 312 and the lower curved gear rack 322 use the first shaft 24 as a rotation axis and use the secondary rod 22 as the arm of rotation. When the user treads the pedals 23, the first gear plate 31 and the second gear plate 32 are pivoted relative to each other to drive the drive assembly 40 to rotate.

[0035] As shown in FIG. 1 to FIG. 10, the drive assembly 40 includes a first linking gear 41, a second linking gear 42, a first linking shaft 43, a first transmission gear 44, and a second transmission gear 45. The first linking gear 41, the second linking gear 42, the first linking shaft 43 and the first transmission gear 44 are coaxially arranged. The first linking gear 41 is meshed with the lower curved gear rack 312. The second linking gear 42 is meshed with the upper curved gear rack 322. The first linking gear 41 and the second linking gear 42 are turned in opposite directions. Unidirectional bearings 411, 421 are mounted in the first linking gear 41 and the second linking gear 42, respectively so that the first linking shaft 43 is rotated in a single direction. When the unidirectional bearings 411, 421 are rotated by a power output, an outer ring thereof is released automatically or a power input is stopped when an inner ring of the unidirectional bearings 411, 421 is rotated faster than the outer ring of the unidirectional bearings 411, 421. The outer ring is not moved together with the inner ring so that the inner ring outputs the power and rotates continuously. If the power is input into the outer ring, the power is not transmitted to the inner ring. Thus the first linking gear 41 and the second linking gear 42 are driven to rotate continuously. The first transmission gear 44 is mounted on the first linking shaft 43. The second transmission gear 45 includes a first small gear 451 and a large gear 452. The first small gear 451 is meshed with the first transmission gear 44. The large gear 452 drives the eccentric assembly 50 to rotate.

[0036] In the drive assembly 40, there is at least one first linking gear 41, at least one second linking gear 42, at least one first transmission gear 44 and at least one second transmission gear 45.

[0037] As shown in FIG. 1 to FIG. 10, the eccentric assembly 50 includes a second small gear 51 and an eccentric block 52. The second small gear 51 is meshed with the large gear 452 and driven by the large gear 452 to rotate. The eccentric block 52 is mounted on the second small gear 51. When the user turns the two pedals 23, the second small gear 51 is driven to rotate continuously and vibrations occur owing to the design of the eccentric block 52. The vibrations generated are sent to the seat body 10 and further to the pedal assembly 20, allowing the user to feel the vibrations.

[0038] As shown in FIG. 1 to FIG. 10, the operation of the present invention is described hereinafter. When the user stands on the pedals 23 to tread left and right, the pedals 23 drive the main rod 21 and the secondary rod 22 to swing up and down with the first shaft 24 as a center. The first gear plate 31 and the second gear plate 32 are linked by the pedal assembly 20 to drive the first linking gear 41 and the second linking gear 42 to rotate. The first linking gear 41 and the second linking gear 42 are provided with the unidirectional bearings 411, 421 therein. The first linking gear 41 and the second linking gear 42 are rotated in different directions when driven by the gear plate assembly 30. Through the unidirectional bearings 411, 421, the first linking shaft 43 is rotated in a single direction. Therefore, when the stepping frequency is high, the structure won't be jammed and can be operated smoothly. Next, the first linking shaft 43 sequentially drives the first transmission gear 44, the second transmission gear 45 and the eccentric assembly 50 to rotate continuously. The eccentric assembly 50 can generate vibrations continuously during rotation owing to the arrangement of the eccentric block 52.

[0039] Another feature of the present invention is that the first linking gear 41 and the second linking gear 42 are provided with the unidirectional bearings 411, 421. Therefore, when the stepping frequency is high, the eccentric assembly 50 can be accelerated to enhance the vibrational effect.

[0040] As shown in FIG. 1 to FIG. 10, the diameter and the number of teeth of the first transmission gear 44 and the large gear 452 are larger than those of the first small gear 451 and the second small gear 51 so as to drive the first small gear 451 and the second small gear 51 to rotate and have higher speed. Thereby the drive assembly 40 continuously drives the eccentric assembly 50 to rotate faster and faster when the user rotates the pedals 23. This is one of the advantages of the present invention.

[0041] FIG. 11 and FIG. 12 illustrate a second embodiment of the present invention. The present invention is provideded with a housing 61. Connecting shafts 62 are extending from the first mounting portions 211 and the second mounting portions 221 toward an outer side of the housing 61. A rotating disc 63 is disposed outside the housing 61 and is fitted on the connecting shafts 62. By rotating the rotating disc 63, the pedal assembly 20 is actuated continuously for enabling the eccentric assembly 50 to generate vibrations.

[0042] FIG. 13 and FIG. 14 illustrate a third embodiment of the present invention, which is a modified embodiment of FIG. 11. In this embodiment, the outer side of the housing 61 can be optionallyconnected with a rotatable seat pad 64. The seat pad 64 is provided with a pair of brackets 65 for the user to rest his/her legs thereon. Accordingly, when the user sits on the seat pad 64 to swing his/her legs, the drive assembly 40 and the eccentric assembly 50 in the housing 61 can be driven to rotate to generate vibrations.

[0043] FIG. 15 and FIG. 16 illustrate a fourth embodiment of the present invention. The gear plate assembly 30 may be implemented as below. The first gear plate 31 and the second gear plate 32 of the gear plate assembly 30 are mounted to the second mounting portions 221 (both sides). When the pedals 23 are treaded, the first gear plate 31 and the second gear plate 32 use the first shaft 24 as the rotation center to drive the first linking gear 41 and the second linking gear 42 so that the drive assembly 40 can continuously drive the eccentric assembly 50 to rotate, thereby achieving a vibrational effect.

[0044] FIG. 17 and FIG. 18 illustrate a fifth embodiment of the present invention, which is a modified embodiment of the first embodiment. The gear plate assembly 30 is assembled to be one-piece, in other words, the lower curved gear rack 312 and the upper curved gear rack 322 are formed on the same gear plate. The lower curved gear rack 312 is meshed with a third linking gear 46. The upper curved gear rack 322 is meshed with a fourth linking gear 47. The first linking gear 41, the second linking gear 42 and the third linking gear 46 are coaxially arranged. The fourth linking gear 47 is axially connected to a fifth linking gear 48. The fifth linking gear 48 is meshed with the second linking gear 42. The first linking gear 41 and the second linking gear 42 are provided with the unidirectional bearings 411, 421. When the gear plate assembly 30 is driven by the pedal assembly 20, the third linking gear 46 can be driven to drive the first linking gear 41 or the second linking gear 42 to rotate in a direction. The fourth linking gear 47 and the fifth linking gear 48 also rotate toward one side. The first linking gear 41 is rotated idly in a certain direction through the unidirectional bearings 411, 412, so that the first linking shaft 43 is rotated in the same direction, providing a smooth operation.

[0045] As shown in FIG. 19, the drive assembly 40' may be implemented as the following modes. FIG. 19 shows a pulley drive. The first transmission gear 44' and the first small gear 451' of the second transmission gear 45' are fitted with a transmission belt P. The large gear 452' of the second transmission gear 45' and the second small gear 51' are also fitted with a transmission belt P. Thereby the drive assembly 40' driven by the gear plate 30 drives the eccentric assembly 50 to rotate. In addition to the aforesaid transmission belt P, a sprocket or a chain (not shown) can also be used.

[0046] Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims.

Claims

1. A pedal-type vibrational apparatus comprising a seat body, a pedal assembly, a gear plate assembly, a drive assembly and an eccentric assembly;
the seat body including a bottom base and a support frame; the pedal assembly, the gear plate assembly, the drive assembly and the eccentric assembly being mounted to the support frame;
the pedal assembly being mounted on the seat body and having

a main rod being axially connected to the support frame through a first shaft serving as a rotation center, and being provided with a first mounting portion on each of two ends thereof and a curved groove;

a secondary rod being mounted to a lower end of the main rod under the first shaft and inserted through the curved groove of the main rod through at least one second shaft that is serving as a lower support member when the main rod is swung; each of two ends of the secondary rod being provided with a second mounting portions; and

two pedals each of which having a pedal portion and a connecting portion that includes an upper connecting hole being connected with the first mounting portion and a lower connecting hole being connected with the second mounting portion;

the gear plate assembly including

a first gear plate being mounted between the support frame and the main rod and having a lower curved gear rack and a first curved surface that is corresponding to the curved groove and abutting against a lower end of the second shaft;

a second gear plate being mounted between the secondary rod and the drive assembly and having an upper curved gear rack and a second curved surface abutting against the lower end of the second shaft;

the drive assembly that includes

a first linking gear being meshed with the lower curved gear rack;

a second linking gear being meshed with the upper curved gear rack and being turned in the direction opposite to the direction of the first linking gear being turned;

a first linking shaft being rotated in a single direction owing to unidirectional bearings being mounted in the first linking gear and the second linking gear, respectively;

a first transmission gear being mounted on the first linking shaft; and

a second transmission gear having a first small gear being meshed with the first transmission gear and a large gear driving the eccentric assembly to rotate;

the first linking gear, the second linking gear, the first linking shaft and the first transmission gear being coaxially arranged; and
the eccentric assembly including

a second small gear that is meshed with the large gear and driven by the large gear to rotate; and

an eccentric block being mounted on the second small gear;

wherein vibrations occur owing to the eccentric block when the second small gear is driven to rotate and then the vibrations are transmitted to the seat body and further to the pedal assembly, allowing the user to feel the vibrations.

2. The pedal-type vibrational apparatus as claimed in claim 1, wherein the bottom base is provided with a plurality of cushion pads.

3. The pedal-type vibrational apparatus as claimed in claim 1, wherein the connecting portion of each of the pedals is provided with a cushion unit, and the cushion unit is an elastic cushion.

4. The pedal-type vibrational apparatus as claimed in claim 1, wherein the connecting portion of each of the pedals is provided with a cushion unit, and the cushion unit is a compression spring.

5. The pedal-type vibrational apparatus as claimed in claim 1, wherein the diameter and the number of teeth of the first transmission gear and the large gear are larger than those of the first small gear and the second small gear.

6. The pedal-type vibrational apparatus as claimed in claim 1, wherein pedal-type vibrational apparatus further includes a housing to cover the seat body while connecting shafts are extending from the first mounting portions and the second mounting portions toward an outer side of the housing; a rotating disc is disposed outside the housing and is fitted on the connecting shafts; the pedal assembly is actuated continuously by rotating the rotating disc for enabling the eccentric assembly to generate vibrations.

7. The pedal-type vibrational apparatus as claimed in claim 6, wherein the outer side of the housing is connected with a rotatable seat pad, the seat pad is provided with a pair of brackets for a user to rest his/her legs thereon, wherein when the user sits on the seat pad to swing, the drive assembly and the eccentric assembly in the housing are driven to rotate to generate vibrations.

8. The pedal-type vibrational apparatus as claimed in claim 1, wherein the first gear plate and the second gear plate of the gear plate assembly are mounted to the second mounting portions; when the pedals are treaded, the first gear plate and the second gear plate use the first shaft as the rotation center to drive the first linking gear and the second linking gear so that the drive assembly continuously drives the eccentric assembly to rotate.

9. The pedal-type vibrational apparatus as claimed in claim 1, wherein the gear plate assembly is assembled to be one-piece; the lower curved gear rack and the upper curved gear rack are formed on the same gear plate; the lower curved gear rack is meshed with a third linking gear while the upper curved gear rack is meshed with a fourth linking gear; the first linking gear, the second linking gear and the third linking gear are coaxially arranged; the fourth linking gear is axially connected to a fifth linking gear and the fifth linking gear is meshed with the second linking gear; the first linking gear and the second linking gear are provided with the unidirectional bearings respectively; when the gear plate assembly is driven by the pedal assembly, the third linking gear is driven to drive the first linking gear or the second linking gear to rotate in a direction while the fourth linking gear and the fifth linking gear also rotate toward one side; the first linking gear is rotated idly in a certain direction through the unidirectional bearings so that the first linking shaft is rotated in the same direction.

10. The pedal-type vibrational apparatus as claimed in claim 1, wherein the drive assembly further includes a pulley and a transmission belt.

11. The pedal-type vibrational apparatus as claimed in claim 1, wherein the drive assembly further includes a sprocket and a chain.

12. A pedal-type vibrational apparatus comprising a seat body, a pedal assembly, a gear plate assembly, a drive assembly and an eccentric assembly;
the seat body including a bottom base and a support frame; the pedal assembly, the gear plate assembly, the drive assembly and the eccentric assembly being mounted to the support frame;
the pedal assembly being mounted on the seat body and having

a main rod being axially connected to the support frame through a first shaft serving as a rotation center, and being provided with a first mounting portion on each of two ends thereof and a curved groove; and

a secondary rod being mounted to a lower end of the main rod under the first shaft and inserted through the curved groove of the main rod through at least one second shaft;

the gear plate assembly including

a first gear plate being mounted between the support frame and the main rod and having a lower curved gear rack;

a second gear plate being mounted between the secondary rod and the drive assembly and having an upper curved gear rack;

the drive assembly that includes

at least one first linking gear being meshed with the lower curved gear rack;

at least one second linking gear being meshed with the upper curved gear rack and being turned in the direction opposite to the direction of the first linking gear being turned;

a first linking shaft being fixed on the first transmission gear and owing to unidirectional bearings being mounted in the first linking gear and the second linking gear, respectively;

at least one first transmission gear; and

at least one second transmission gear having a first small gear being meshed with the first transmission gear and a large gear driving the eccentric assembly to rotate;

the first linking gear, the second linking gear, the first linking shaft and the first transmission gear being coaxially arranged; the first linking shaft being rotated in a single direction continuously and synchronously along with the first transmission gear owing to unidirectional bearings being mounted in the first linking gear and the second linking gear, respectively;

the eccentric assembly including

a second small gear corresponding to the large gear and driven by the large gear to rotate; and

an eccentric block being mounted on the second small gear;

wherein vibrations occur owing to the eccentric block when the second small gear is driven continuously by the first transmission gear to rotate and then the vibrations are transmitted to the seat body and further to the pedal assembly, allowing the user to feel the vibrations.

Drawing