Leg exercise machine

Abstract

The present invention provides a leg exercise machine, comprising a base, a handle section, two actuating levers, a balance linkage device, and two dampers. The handle section is fixed to one end of the base for supporting a user's hands. The two actuating levers are separately pivotally connected to the base. One end of each of the two actuating levers that is not pivotally connected to the base is provided with a pedal. The balance linkage device is arranged between the two actuating levers, such that the two actuating levers swing in opposite directions relative to the base. The two dampers are arranged between the two actuating levers and the base, and two ends of each damper are respectively pivotally connected to the base and one corresponding actuating lever.

Description

Leg training machine Technical Field

[0001] This invention relates to indoor exercise equipment, specifically to a leg training machine that can be used to train a user's leg muscles. Background Technology

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

[0003] However, the leg training machine in Reference Case 1 has a very complex structure, which makes it quite complicated to manufacture and maintain, thus increasing the overall manufacturing and usage costs. Therefore, there is the invention patent case No. I798131 of Taiwan Province, "Step Machine" (hereinafter referred to as Reference Case 2), which simplifies the complexity of its resistance control structure to reduce the overall manufacturing and usage costs.

[0004] However, the structure of Case 2 is still quite complex and cannot be effectively simplified. Therefore, the overall manufacturing and usage costs remain high, and further improvements are necessary. 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 have invented this invention that can 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:

[0008] A base;

[0009] One armrest is fixed to one end of the base so that the user's hands can rest on it;

[0010] Two actuators are pivotally connected to the base, and a pedal is provided at the end of each actuator that is not pivotally connected to the base;

[0011] A balancing linkage device is installed between two actuating rods, causing the two actuating rods to oscillate relative to the base in opposite directions; and

[0012] Two dampers are positioned between the two actuating rods and the base, with each damper pivotally mounted at both ends.

[0013] It is connected to the base and an opposing actuator rod.

[0014] The leg training machine has a support rod extending obliquely toward the armrest 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.

[0015] The leg training machine is described above, wherein each damper is a hydraulic / pneumatic cylinder.

[0016] The leg training machine is described above, 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.

[0017] 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.

[0018] The leg training machine is provided with a limiting plate on the linkage seat that is inclined relative to the linkage seat and can abut against the two rotating arms.

[0019] The leg training machine has a seat at the top of the support rod.

[0020] Through the above-mentioned technical means, the present invention can utilize a damper to provide resistance to the oscillating motion of the two actuators, thus greatly simplifying the structure of the leg training machine of the present invention, thereby significantly reducing the manufacturing and maintenance costs of the leg training machine. Attached Figure Description

[0021] Figure 1 is a perspective view of the present invention.

[0022] Figure 2 is a side view of the present invention.

[0023] Figure 3 is a partially enlarged exploded perspective view of the balancing linkage device of the present invention.

[0024] Figure 4 is a side view of an operating position of the present invention.

[0025] Figure 5 is a side view of another operating position of the present invention.

[0026] Figure 6 is a side view of another operating position of the present invention.

[0027] Figure 7 is a side view of one operation mode of the present invention.

[0028] Figure 8 is a side view of another operating mode of the present invention.

[0029] Figure 9 is a side view of another operating method of the present invention.

[0030] Figure 10 is a side view schematic diagram of another operating mode of the present invention.

[0031] Symbol Explanation: 10: Base; 12: Base Rod; 13: Cross Rod; 14: Support Rod; 142: Seat; 16: Armrest Support Rod; 17: Diagonal Support Rod; 18: Connecting Plate; 20: Armrest Part; 22: Armrest Rod; 30: Actuating Rod; 32: Pedal; 40: Balance Linkage Device; 42: Linkage Seat; 43: Rotating Shaft Tube; 44: Rotating Shaft; 46: Rotating Arm; 48: Pivot Rod; 49: Limiting Plate; 50: Damper; 52: Cylinder; 522: Adjustment Button; 54: Telescopic Rod Detailed Implementation

[0032] This invention provides a leg training machine. Referring to Figures 1 and 2, the leg training machine mainly comprises 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 the machine 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, allowing the base 10 to be stably placed on a flat surface. 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 2 is fixed to a horizontal bar 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 of the handrail 22 extends downward. At this time, a handrail support rod 16 extending parallel to the bottom bar 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 of the two handrails 22 is fixed near the top 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 bar 12 to provide a better structural support effect for the handrail part 20.

[0033] Two actuators 30 are pivotally connected to the base 10. 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.

[0034] 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, referring 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 each end of the rotating shaft 44. A pivot rod 48 is pivotally connected to the end of the rotating arm 46 that is not connected to the rotating shaft 44. The 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.

[0035] 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 protruding and 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.

[0036] Therefore, referring to Figures 2 and 4 to 7, the user can place both feet on the pedals 32 of the two actuator rods 30, hold the two handrails 22 of the armrest 20 with both hands, lean forward slightly, and step on the pedals 32 with both feet. 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 thus drive 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 connection device 40.

[0037] Furthermore, the maximum angle of swing of the two actuator rods 30 can be limited by the relative abutment between the rotating arm 46 and the limiting plate 49.

[0038] 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 through 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 to provide resistance against the user's stepping force, thereby achieving the effect of training the user's leg muscles. In addition, each damper 50 is an adjustable damper 50, and an adjustment knob 522 can be 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.

[0039] Because the leg training machine of the present invention uses a damper 50 in the form of two cylinders to provide resistance to the oscillating 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.

[0040] 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.

[0041] In addition, as shown in Figure 9, the user is standing upright and stepping on the actuating 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.

[0042] Referring to Figure 10, the user can also sit on the seat 142 at the top of the support rod 14, allowing the user to step on the two actuation rods 30 at a small angle with both feet. This allows users with muscle atrophy to use it for leg rehabilitation, thus expanding the scope and applicability of the leg training machine of this invention.

Claims

1. A leg training machine, characterized in that, Include: A base; An armrest is fixed to one end of the base so that the user's hands can rest on it; Two actuators are pivotally connected to the base, and a pedal is provided at the end of each actuator that is not pivotally connected to the base. A balancing linkage device is installed between two actuating rods, causing the two actuating rods to oscillate relative to the base in opposite directions; and Two dampers are positioned between the two actuators and the base, with each damper's two ends pivotally connected to the base and an opposite actuator.

2. The leg training machine as described in claim 1, characterized in that, A support rod is provided at the end of the base away from the armrest, extending obliquely toward the armrest. 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, characterized in that, Each damper is a hydraulic / pneumatic cylinder.

4. The leg training machine as described in claim 3, characterized in that, Each damper is an adjustable damper, and an adjustment knob is provided at one end of each damper near the base to adjust the damping magnitude of the damper.

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

6. The leg training machine as described in claim 5, characterized in that, A limiting plate is provided on the linkage seat, which is inclined relative to the linkage seat and can abut against the two rotating arms.

7. The leg training machine as described in claim 6, characterized in that, A seat is installed at the top of the support rod.

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

9. The leg training machine as described in claim 8, characterized in that, A limiting plate is provided on the linkage seat, which is inclined relative to the linkage seat and can abut against the two rotating arms.

10. The leg training machine as described in claim 2, 8, or 9, characterized in that, A seat is installed at the top of the support rod.

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