Leg-training exerciser

Abstract

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

Description

BACKGROUND OF THE INVENTIONField of the Invention

[0001] The present invention relates to an exerciser, and more particularly to an exerciser for training strength and power of muscles of legs for sprint.Description of Related Art

[0002] Indoor exercisers can solve weather and location issues for exercising and are popular in nowadays. One conventional exerciser for training muscles of legs for sprint, such as US Patent Application Publication 2023 / 0054522. The ‘522 Publication uses a damping mechanism composed of pulleys and belts to provide a resistance to a user for leg-training. Thus, the muscles of legs of the user can be trained and improved.

[0003] However, the ‘522 Publication has a complicated structure and are complex in manufacturing and repairing. Therefore, to reduce the cost for manufacturing and using, US Patent Application Publication 2024 / 0009513 is provided. The ‘513 Publication has a simplified structure but is still also complicated. The cost for manufacturing and using the ‘513 Publication is still high, so the conventional exercisers are needed to be improved.

[0004] To overcome the shortcomings, the present invention tends to provide an exerciser to mitigate or obviate the aforementioned problems.SUMMARY OF THE INVENTION

[0005] The main objective of the invention is to provide a leg-training exerciser for training strength and power of muscles of legs for sprint.

[0006] The exerciser has a bottom base, a handle assembly, two swinging arms, a balance linkage assembly, and two dampers. The handle assembly is secured on an end of the bottom base for a user holding the handle assembly. The two swinging arms are pivotally connected with the bottom base, and each swinging arm has a pedal mounted on an end of the swinging arm opposite the bottom base. The balance linkage assembly is arranged between the swinging arms to allow the two swinging arms to swing relative to the bottom base in reverse directions respectively. The two dampers are arranged between the two swinging arms and the bottom base, and each damper has two end pivotally connected to the bottom base and a corresponding one of the swinging arms respectively.

[0007] Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG. 1 is a perspective view of an exerciser in accordance with the present invention;

[0009] FIG. 2 is a side view of the exerciser in FIG. 1;

[0010] FIG. 3 is an enlarged exploded perspective view of a balance linkage assembly of the exerciser in FIG. 1;

[0011] FIG. 4 is an operational side view of the exerciser in FIG. 1;

[0012] FIG. 5 is another operational side view of the exerciser in FIG. 1;

[0013] FIG. 6 is a further operational side view of the exerciser in FIG. 1;

[0014] FIG. 7 is an operational embodiment side view of the linkage assembly of the exerciser in FIG. 1;

[0015] FIG. 8 is another operational embodiment side view of the linkage assembly of the exerciser in FIG. 1;

[0016] FIG. 9 is a further operational embodiment side view of the linkage assembly of the exerciser in FIG. 1; and

[0017] FIG. 10 is another further operational embodiment side view of the linkage assembly of the exerciser in FIG. 1.DETAILED DESCRIPTION OF PREFERRED EMBODIMENT

[0018] With reference to FIGS. 1 to 7, a leg-training exerciser in accordance with the present invention comprises a bottom base 10, a handle assembly 20, two swinging arms 30, a balance linkage assembly 40, and two dampers 50. The bottom base 10 is applied to put on a ground and comprises a bottom rod 12 and two lateral rods 13. The two lateral rods 13 are mounted respectively on two ends of the bottom rod 12 to make the bottom base 10 form as I-shaped structure. Accordingly, the bottom base can be stably put on a flat ground. The handle assembly 20 is mounted securely on and end of the bottom base 10 for hands of a user to hold the handle assembly 20. The handle assembly 20 comprises two curved handle bars 22. Each handle bar 22 has a bottom end attached securely on one of the lateral rods 13 of the bottom base 10. A middle portion of each handle bar 22 may be formed as a reversed U shape, such that the top end of the handle bar 22 extends downward. In addition, bottom base 10 further comprises a handle connection rod 16 being substantially parallel with the bottom rod 12 and having a front end curved upward. The top ends of the two handle bars 22 are connected to a position near the top end of the handle connection rod 16, such that the handle bars 22 can be arranged securely on the bottom base 10. Furthermore, the bottom base may further comprise an inclined rod 17 connected to the handle connection rod 16. Two ends of the inclined rod 17 are attached respectively to a bottom of the handle connection rod 16 and a top of the bottom rod 12.

[0019] The two swinging arms 30 are pivotally connected with the bottom base 10, and each swinging arm 30 has a pedal 32 mounted on an end of the swinging arm 30 opposite the bottom base 10. Preferably, a supporting rod 14 is mounted on the bottom base 10 at a position away from the handle assembly 20 and protruding inclinedly toward the handle assembly 20. An end of each swinging arm 30 is pivotally connected to the supporting rod 14. An end of the handle connection rod 16 opposite the handle assembly 20 is connected to the supporting rod 14. In addition, a seat 142 is mounted on a top of the supporting rod 16.

[0020] The balance linkage assembly 40 is arranged between the two swinging arms to allow the two swinging arms 30 to swing relative to the bottom base 10 in reverse directions respectively. Preferably, with reference to FIG. 3, the balance linkage assembly 40 comprises a linkage base 42, an axle sleeve 43, an axle 44, two rotating arms 46, and two pivotal rod 48. The linkage base is mounted securely on the supporting rod 14. The axle sleeve 43 is mounted securely and laterally on the linkage base 42. The axle 44 is mounted rotatably through the axle sleeve 43. The two rotating arms 46 are connected securely to two ends of the axle 44 respectively. Two pivotal rods 48 are respectively connected pivotally to ends of the rotating arms 46 opposite the axle 44. An end of each pivotal rod 48 opposite a corresponding one of the rotating arms 46 is pivotally connected to a corresponding one of the swinging arms 30. In addition, a limiting board 49 is mounted on the linkage base 42, is inclined relative to the linkage base 42 at an angle, and selectively abuts with the rotating arms 46.

[0021] The two dampers 50 are arranged between the two swinging arms 30 and the bottom base 10. Each damper 50 has two end pivotally connected to the bottom base 10 and a corresponding one of the swinging arms 30 respectively. Preferably, each damper is a hydraulic / pneumatic cylinder and comprises a housing 52 and an extension rod 54. An end of the housing 52 is connected pivotally to a connection tab 18 protruding from the supporting rod 14. One of two ends of the extension rod 54 extends movably into an end of the housing 52 opposite the bottom base 10, and the other end of the extension rod 54 is connected pivotally to a corresponding one of the swinging arms 30.

[0022] Accordingly, with reference to FIGS. 2 and 4 to 7, when in use, two feet of a user can step on the pedals 32 on the swinging arms 30 and two hands of the user can hold the handle bars 22 of the handle assembly 20. The body of the user leans slightly forward and lies down. The feet of the user steps the pedals 32 respectively, such that the swinging arms 30 will be pivoted relative to the supporting rod 14 with the stepping of the user. Accordingly, when one of the swinging rod 30 is pivoted downward with the stepping of the user, the pivotal rod 48 connected with the swinging rod 30 can be pivoted and the rotating arm 46 connected to the pivotal rod 48 can also be pivoted. Thus, the axle 44 can be rotated. When the axle 44 is rotated. The rotating arm 46 on the other end of the axle 44 is pivoted, such that the other swinging arm 30 can be swung with the connection of rotating arm 46 and the pivotal rod 48. Therefore, the two swinging arms 30 can swing relative to the bottom base 10 in reverse directions respectively.

[0023] In addition, with the abutment between the rotating arms 46 and the limiting board 49, the maximum swinging angle of the two swinging arms 30 can be limited.

[0024] Therefore, while the two swinging arms 30 are stepped to swing in reverse directions, the dampers 50 can also be pivoted relative to the swinging arms 30 and the bottom base 10. Thus, the extension rod 54 of each damper 50 can be moved into or out of the housing 52, such that a damping effect against the stepping force of the user can be provided. Accordingly, a training effect can be provided to muscles of legs of the user. Furthermore, each damper 50 may be an adjustable damper and has an adjusting knob 522 mounted on an end of the damper 50 adjacent to the bottom base 10. Accordingly, different damping effects can be adjusted to provide different training effect to the user.

[0025] Because the exerciser in accordance with the present invention uses two cylinders as the dampers 50 to provide a resistance to the swinging arms, the structure of the exerciser in accordance with the present invention can be effectively simplified to reduce the cost for manufacturing and repairing.

[0026] With reference to FIGS. 7 and 8, when the exercise in accordance with the present invention is in use, the angle and posture of the body of the user can be changed to train different muscles of legs of the user. FIG. 7 shows a posture for simulating the starting position of a race for the user to train the athlete or the muscle strength and explosive power of the user for sprint.

[0027] With reference to FIG. 9, the body user is substantially straight and steps the swinging arms 30 as a stepper, such that the exerciser in accordance with the present invention is versatile in use.

[0028] With reference to FIG. 10, the user can sit on the seat 142 on the top of the supporting rod 14, so that the user can step the swinging arms 30 at small angle range. Accordingly, the users with muscle atrophy can rehabilitate their feet with the exerciser in accordance with the present invention. The exerciser in accordance with the present invention is versatile in use.

[0029] Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims

1. An exerciser comprising:a bottom base;a handle assembly secured on an end of the bottom base for a user holding the handle assembly;two swinging arms pivotally connected with the bottom base, and each swinging arm having a pedal mounted on an end of the swinging arm opposite the bottom base;a balance linkage assembly arranged between the swinging arms to allow the two swinging arms to swing relative to the bottom base in reverse directions respectively; andtwo dampers arranged between the two swinging arms and the bottom base, and each damper having two end pivotally connected to the bottom base and a corresponding one of the swinging arms respectively.

2. The exerciser as claimed in claim 1, wherein a supporting rod is mounted on the bottom base at a position away from the handle assembly and protruding inclinedly toward the handle assembly; andthe two swinging arms are pivotally connected to the supporting rod.

3. The exerciser as claimed in claim 2, wherein each damper is a hydraulic / pneumatic cylinder.

4. The exerciser as claimed in claim 3, wherein each damper is an adjustable damper and has an adjusting knob mounted on an end of the damper adjacent to the bottom base.

5. The exerciser as claimed in claim 4, wherein the balance linkage assembly comprisesa linkage base mounted securely on the supporting rod;an axle sleeve mounted securely on the linkage base;an axle mounted rotatably through the axle sleeve;two rotating arms connected securely to two ends of the axle respectively;two pivotal rods connected pivotally to the rotating arms respectively, wherein an end of each pivotal rod opposite a corresponding one of the rotating arms is pivotally connected to a corresponding one of the swinging arms.

6. The exerciser as claimed in claim 5, wherein a limiting board is mounted on the linkage base, is inclined relative to the linkage base at an angle, and selectively abuts with the rotating arms.

7. The exerciser as claimed in claim 6, wherein a seat is mounted on a top of the supporting rod.

8. The exerciser as claimed in claim 1, wherein each damper is a hydraulic / pneumatic cylinder.

9. The exerciser as claimed in claim 8, wherein each damper is an adjustable damper and having an adjusting knob mounted on an end of the damper adjacent to the bottom base.

10. The exerciser as claimed in claim 10, wherein a limiting board is mounted on the linkage base, is inclined relative to the linkage base at an angle, and selectively abuts with the rotating arms.

11. The exerciser as claimed in claim 2, wherein the balance linkage assembly comprisesa linkage base mounted securely on the supporting rod;an axle sleeve mounted securely on the linkage base;an axle mounted rotatably through the axle sleeve;two rotating arms connected securely to two ends of the axle respectively;two pivotal rods connected pivotally to the rotating arms respectively, wherein an end of each pivotal rod opposite a corresponding one of the rotating arms is pivotally connected to a corresponding one of the swinging arms.

12. The exerciser as claimed in claim 11, wherein a limiting board is mounted on the linkage base, is inclined relative to the linkage base at an angle, and selectively abuts with the rotating arms.

13. The exerciser as claimed in claim 12, wherein a seat is mounted on a top of the supporting rod.

14. The exerciser as claimed in claim 11, wherein a seat is mounted on a top of the supporting rod.

15. The exerciser as claimed in claim 2, wherein a seat is mounted on a top of the supporting rod.

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