Leg-training exerciser

Abstract

The present invention relates to a leg-training exerciser having a base, a handle assembly, two swinging arms, a balance linkage assembly, and two dampers. The handle assembly is secured on an end of the base for a user holding the handle assembly. The two swinging arms are pivotally connected with the base, and each swinging arm has a pedal mounted on an end of the swinging arm opposite the base. The balance linkage assembly is arranged between the swinging arms to allow the two swinging to swing relative to the base in reverse directions respectively. The dampers are arranged between the two swinging arms and the base. Each damper has two end pivotally connected to the base and a corresponding one of the swinging arms respectively.

Description

[Technical Field]

[0001] This invention relates to an indoor exercise equipment, and more particularly to a leg training machine that can be used to train the leg muscles of a user. [Previous Technology]

[0002] Indoor exercise equipment is very popular among modern people because it allows people to exercise in a limited space. Such as treadmills or steppers, there is also a leg training machine for athletes or other sports enthusiasts to train the strength and explosive power of the leg muscle groups that are emphasized when running and sprinting. For example, Taiwan Patent No. I766793 "Leg Training Machine" (hereinafter referred to as Reference Case 1) can provide resistance by using a resistance mechanism composed of pulleys and belts to provide resistance for users during leg training, so as to enable users to practice muscle strength and explosive power at the start of running.

[0003] However, the leg training machine of Reference Case 1 has a very complex structure, which makes it very complicated to manufacture and maintain, thus increasing the overall manufacturing and use costs. Therefore, there is Taiwan Patent No. 1798131 "Step Machine" (hereinafter referred to as Reference Case 2), which simplifies the complexity of its resistance control structure to reduce the overall manufacturing and use costs.

[0004] However, as in Case 2, its structure is still quite complex and cannot be effectively simplified. Therefore, the overall manufacturing and usage costs are still high, and there is a real need for further improvement. [Summary of the Invention]

[0005] Therefore, in view of the shortcomings in the structure and use of existing leg training machines, the inventors have conducted continuous experiments and research and invented this invention to improve upon the shortcomings of the existing ones.

[0006] The main objective of this invention is to provide a leg training machine.

[0007] To achieve the above objectives, the present invention provides a leg training machine, which mainly comprises: a base; a handrail fixed to one end of the base for the user's hand to rest on; two actuators pivotally connected to the base, each actuator having a pedal at an end other than the one pivotally connected to the base; a balancing linkage device disposed between the two actuators, causing the two actuators to swing relative to the base in opposite directions; and two dampers disposed between the two actuators and the base, each damper having its two ends pivotally connected to the base and an opposing actuator.

[0008] The leg training machine described herein includes a support rod extending obliquely toward the armrest side at one end of the base away from the armrest, and one end of each of the two actuating rods is pivotally connected to the support rod.

[0009] The leg training machine described herein, wherein each damper is a hydraulic / pneumatic cylinder.

[0010] In the leg training machine described above, each damper is an adjustable damper, and an adjustment knob for adjusting the damping magnitude of the damper is provided at one end of each damper near the base.

[0011] The leg training machine, wherein the balance linkage device includes a linkage seat fixed on a support rod, a transverse rotating shaft tube is provided on the linkage seat, a rotating shaft that can rotate relative to the rotating shaft tube is provided in the rotating shaft tube, a rotating arm is fixedly connected to each end of the rotating shaft, a pivot rod is pivotally connected to the end of the rotating arm that is not connected to the rotating shaft, and the end of the pivot rod that is not connected to the rotating arm is pivotally connected to an opposite actuating rod.

[0012] The leg training machine described herein includes a limiting plate on the linkage seat that is inclined relative to the linkage seat and can abut against the two rotating arms.

[0013] The leg training machine described herein includes a seat at the top of the support rod.

[0014] By means of the above-mentioned technical means, the present invention can use a damper to provide resistance to the swing motion of the two actuators, thereby greatly simplifying the structure of the leg training machine of the present invention, so as to achieve the effect of greatly reducing the manufacturing and maintenance costs of the leg training machine.

Implementation Method

[0015] This invention relates to a leg training machine. Please refer to Figures 1 and 2. The leg training machine of this invention mainly includes a base 10, a handrail 20, two actuating rods 30, a balance linkage device 40, and two dampers 50. The base 10 is used to stably place on the floor and mainly includes a base rod 12 and two crossbars 13. The two crossbars 13 are respectively horizontally fixed to both ends of the base rod 12 to form a slightly I-shaped structure, so that the base 10 can be stably placed on a flat ground. The handrail 20 is fixed to one end of the base 10 for the user's hands to rest on. The handrail 20 may include two curved handrails 22. The bottom end of the handrail 22 is fixed to one of the crossbars 13 of the base 10. The middle section of each handrail 22 can be slightly bent into an inverted U-shape, so that the top end of the handrail 22 extends downward. At this time, a handrail support rod 16 extending parallel to the bottom rod 12 can be set on the base 10. The end of the handrail support rod 16 facing the handrail part 20 is slightly bent upward, so that the top ends of the two handrails 22 are fixed near the top end of the handrail support rod 16, so that the two handrails 22 can be stably fixed on the base 10. The base 10 can also be provided with an inclined support rod 17 connecting the handrail support rod 16. The two ends of the inclined support rod 17 are respectively fixedly connected to the bottom surface of the handrail support rod 16 and the top surface of the bottom rod 12 to provide a better structural support effect for the handrail part 20.

[0016] Two actuators 30 are pivotally connected to the base 10 respectively. A pedal 32 is provided at the end of each actuator 30 that is not pivotally connected to the base 10. A support rod 14 extending obliquely toward the armrest 20 is provided at the end of the base rod 12 away from the armrest 20. One end of each actuator 30 is pivotally connected to the support rod 14. The end of the armrest support rod 16 that is not connected to the armrest rod 22 is fixedly connected to the support rod 14. A seat 142 can be provided at the top of the support rod 14.

[0017] The balancing linkage device 40 is disposed between the two actuating rods 30, so that the two actuating rods 30 swing relative to the base 10 in opposite directions. Preferably, please refer to Figure 3. The balancing linkage device 40 includes a linkage seat 42 fixed on the support rod 14. A transverse rotating shaft tube 43 is disposed on the linkage seat 42. A rotating shaft 44 that can rotate relative to the rotating shaft tube 43 is disposed in the rotating shaft tube 43. A rotating arm 46 is fixedly connected to both ends of the rotating shaft 44. A pivot rod 48 is pivotally connected to one end of the rotating arm 46 that is not connected to the rotating shaft 44. The other end of the pivot rod 48 that is not connected to the rotating arm 46 is pivotally connected to a corresponding actuating rod 30. A limiting plate 49 that is inclined relative to the linkage seat 42 and can abut against the two rotating arms 46 is disposed on the linkage seat 42.

[0018] Two dampers 50 are disposed between two actuating rods 30 and the base 10. The two ends of each damper 50 are pivotally connected to the base 10 and a corresponding actuating rod 30, respectively. Preferably, each damper 50 is a hydraulic / pneumatic cylinder, and has a cylinder body 52 and a telescopic rod body 54. One end of the cylinder body 52 is pivotally connected to a connecting piece 18 that protrudes and is fixed on the support rod 14. One end of the telescopic rod 54 is telescopically inserted into the cylinder body 52 at the end connected to the base 10, and the other end is pivotally connected to a corresponding actuating rod 30.

[0019] Therefore, please refer to Figures 2 and 4 to 7. The user can place both feet on the pedals 32 of the two actuator rods 30 respectively, hold the two handrails 22 of the armrest 20 with both hands, lean forward slightly and step on the pedals 32 with both feet respectively. In this way, the two actuator rods 30 will pivot relative to the support rod 14 due to the user's stepping. At this time, when one actuator rod 30 pivots downward due to the force of the user's stepping, it can drive the pivot rod 48 connected to it to pivot, and at the same time drive the rotating arm 46 connected to the pivot rod 48 to pivot relative to the pivot rod 48, thereby driving the rotating shaft 44 to rotate. When the rotating shaft 44 rotates, it can drive the rotating arm 46 and the pivot rod 48 on the other side to pivot relative to each other, and link the actuator rod 30 on the other side. In this way, the two actuator rods 30 can swing in opposite directions relative to the base 10 through the balance linkage device 40.

[0020] The maximum angle of swing of the two actuators 30 can be limited by the relative abutment between the rotating arm 46 and the limiting plate 49.

[0021] Thus, when the user steps on the two actuators 30 and they swing in opposite directions, the damper 50 can be pivoted relative to the actuators 30 and the base 10 by the swinging movement of the actuators 30, and the telescopic rod 54 of the damper 50 can be telescopically moved relative to the cylinder 52, thereby providing resistance force against the user's stepping force, so as to achieve the effect of training the user's leg muscles. In addition, each damper 50 is an adjustable damper 50, and an adjustment knob 522 is provided at the end of the cylinder 52 of each damper 50 near the base 10 to adjust the damping size of the damper 50, so as to provide the user with different damping sizes to achieve different training effects.

[0022] Since the leg training machine of the present invention uses a damper 50 in the form of two cylinders to provide resistance to the swinging motion of the two actuators 30, the structure of the leg training machine of the present invention can be greatly simplified, thereby achieving the effect of greatly reducing the manufacturing and maintenance costs of the leg training machine.

[0023] Please also refer to Figures 7 and 8. When using the leg training machine of the present invention, the user can change the part of the leg muscles being trained by adjusting the body to different angles and postures. As shown in Figure 7, for example, the user can simulate the starting posture when running in a race to train the muscle strength and explosive power of the athlete or user when starting.

[0024] In addition, as shown in Figure 9, the operation mode is for the user to stand upright and step on the actuation lever 30. This allows the leg training machine of the present invention to be used as a general stepper, which can improve the flexibility of the leg training machine of the present invention.

[0025] Referring again to Figure 10, the user can also sit on the seat 142 at the top of the support rod 14, so that the user's two feet can step on the two actuation rods 30 at a small angle. This can be used by users with muscle atrophy for leg rehabilitation, thereby expanding the scope and applicability of the leg training machine of the present invention. [Simplified Explanation of the Diagram]

[0026] Figure 1: Perspective view of the present invention. Figure 2: Side view of the present invention. Figure 3: Partial enlarged exploded perspective view of the balancing linkage device of the present invention. Figure 4: Side view of one operating position of the present invention. Figure 5: Side view of another operating position of the present invention. Figure 6: Side view of yet another operating position of the present invention. Figure 7: Side view schematic diagram of one operating mode of the present invention. Figure 8: Side view schematic diagram of another operating mode of the present invention. Figure 9: Side view schematic diagram of yet another operating mode of the present invention. Figure 10: Side view schematic diagram of yet another operating mode of the present invention.

Claims

1. A leg training machine, comprising: a base; a handrail fixed to one end of the base for a user's hand to rest on; two actuators pivotally connected to the base, each actuator having a pedal at an end other than the one pivotally connected to the base; a balancing linkage device disposed between the two actuators, causing the two actuators to oscillate relative to the base in opposite directions; and two dampers disposed between the two actuators and the base, each damper having its ends pivotally connected to the base and an opposing actuator.

2. The leg training machine as described in claim 1, wherein a support rod extending obliquely toward the armrest is provided at one end of the base away from the armrest, and one end of each of the two actuating rods is pivotally connected to the support rod.

3. The leg training machine as described in claim 1 or 2, wherein each damper is a hydraulic / pneumatic cylinder.

4. The leg training machine as described in claim 3, wherein each damper is an adjustable damper, and an adjustment knob for adjusting the damping magnitude of the damper is provided at one end of each damper near the base.

5. The leg training machine as described in claim 4, wherein the balance linkage device includes a linkage seat fixed to a support rod, a transverse rotating shaft tube is provided on the linkage seat, a rotating shaft that can rotate relative to the rotating shaft tube is provided in the rotating shaft tube, a rotating arm is fixedly connected to each end of the rotating shaft, a pivot rod is pivotally connected to the end of the rotating arm that is not connected to the rotating shaft, and the end of the pivot rod that is not connected to the rotating arm is pivotally connected to an opposite actuating rod.

6. The leg training machine as claimed in claim 5, wherein a limiting plate is provided on the linkage seat at an angle relative to the linkage seat and abutting against the two rotating arms.

7. The leg training machine as described in claim 6, wherein a seat is provided at the top of the support rod.

8. The leg training machine as claimed in claim 2, wherein the balance linkage device includes a linkage seat fixed to a support rod, a transverse rotating shaft tube is provided on the linkage seat, a rotating shaft that can rotate relative to the rotating shaft tube is provided in the rotating shaft tube, a rotating arm is fixedly connected to each end of the rotating shaft, a pivot rod is pivotally connected to the end of the rotating arm that is not connected to the rotating shaft, and the end of the pivot rod that is not connected to the rotating arm is pivotally connected to an opposite actuating rod.

9. The leg training machine as claimed in claim 8, wherein a limiting plate is provided on the linkage seat at an angle relative to the linkage seat and abutting against the two rotating arms.

10. The leg training machine as described in claim 2, 8 or 9, wherein a seat is provided at the top of the support rod.

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