Stair climbing simulation body builder

By incorporating linear elements and guide rollers into the two foot pedal assemblies of the stair climber, dynamic resistance adjustment and safety enhancement are achieved, solving the problems of low utilization rate and safety hazards of elastic ropes in existing technologies, and improving exercise comfort and safety.

CN223641235UActive Publication Date: 2025-12-09ZHEJIANG JINTUO MECHANICAL & ELECTRICAL CO LTD
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Patent Information

Application Number
CN202423093334.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-12-09
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

Existing stair climbing fitness equipment only provides resistance with the elastic rope connected to one side of the pedal when the pedal moves up and down alternately. This reduces the utilization rate of the elastic rope and poses a safety hazard of the elastic rope sagging as the pedal descends from the middle.

Method used

The system employs two foot pedal assemblies, each equipped with a first guide roller around which the linear element passes. The two ends of the linear element are connected to the frame. When the two foot pedal assemblies move up and down alternately through a linkage mechanism, the linear element expands and contracts with the movement, providing dynamic resistance and maintaining tension to prevent sagging.

Benefits of technology

It improves the utilization rate of elastic ropes, avoids safety hazards, adjusts the resistance, increases exercise comfort, and provides assistance at the end of the stroke to ensure smooth exercise.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stair climbing simulation body builder which comprises a frame body, two pedal plate assemblies and a linkage mechanism, the two pedal plate assemblies are arranged on the left side and the right side of the frame body respectively and can slide up and down relative to the frame body, the linkage mechanism is connected with the two pedal plate assemblies, the stair climbing simulation body builder further comprises a damping mechanism, and the damping mechanism comprises at least one elastic linear element. The two pedal assemblies are each provided with a first guide roller for the linear element to bypass, the linear element bypasses the first guide rollers installed on the two pedal assemblies, the two ends of the linear element are both connected to the frame body, and the first guide rollers tension the bypassed linear element. The linear element stretches out and draws back along with the movement of the two pedal assemblies so as to change the resistance provided by the linear element to the pedal assemblies, and in the process that the two pedal assemblies alternately move up and down, the linear element is in a tensioning state all the time, and the elastic element is prevented from drooping.
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Description

Technical Field

[0001] This utility model relates to a fitness equipment, and more particularly to a stair-climbing simulation fitness machine. Background Technology

[0002] Currently, people are paying more and more attention to their physical health and therefore focusing more on exercise. Hiking and climbing are excellent forms of exercise. However, outdoor exercise can be affected by factors such as weather, environment, or time. Sometimes, people choose to climb stairs for exercise, but this usually requires climbing a considerable number of floors to achieve the desired effect. To address this, stair climbers have emerged on the market, allowing users to simulate climbing stairs and mountains by stepping on the machine's pedals.

[0003] For example, the stair-climbing fitness device disclosed in Chinese utility model patent CN201143357Y includes a support frame, a guide rail inclinedly arranged on the support frame, left and right foot pedal assemblies, an elastic component, and a linkage mechanism that can link the left and right foot pedal assemblies; the left and right foot pedal assemblies are provided with a foot pedal, the bottom of the foot pedal is provided with a shaft, each end of the first shaft is connected to a pulley, the pulley is slidably arranged in the guide rail, one end of the elastic component is connected to the bottom of the support frame, and the other end is connected to the left and right foot pedal assemblies.

[0004] The existing elastic rope used to provide resistance is connected at one end to the bottom of the bracket and at the other end to the foot pedal assembly. When one pedal rises from the middle, the other pedal falls from the middle. During this process, the elastic rope connected to the rising pedal is stretched to provide resistance, while the elastic rope connected to the falling pedal does not provide resistance. When the pedals move up and down alternately, only the elastic rope on one side provides resistance, which reduces the utilization rate of the elastic rope. Furthermore, the elastic rope will sag during the process of the pedal falling from the middle, which poses a certain safety hazard. Utility Model Content

[0005] Based on the above-mentioned problems that only the elastic rope connected to one side of the pedal provides resistance when the pedal moves up and down alternately, which reduces the utilization rate of the elastic rope, and the elastic rope will sag as the pedal descends from the middle, posing a certain safety hazard, this utility model provides a stair climbing simulation fitness device.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a stair-climbing simulated fitness device, including a frame, two foot pedal assemblies and a linkage mechanism. The two foot pedal assemblies are respectively arranged on the left and right sides of the frame and can slide up and down relative to the frame. The linkage mechanism connects the two foot pedal assemblies, so that when one foot pedal assembly slides down, the other foot pedal assembly slides up. It also includes a damping mechanism that provides resistance when the two foot pedal assemblies move up and down alternately. The damping mechanism includes at least one elastic linear element. Each of the two foot pedal assemblies is equipped with a first guide roller that the linear element passes over. The linear element passes over the first guide roller installed on the two foot pedal assemblies, and both ends of the linear element are connected to the frame. The first guide roller tensions the linear element that passes over it. When the two foot pedal assemblies move up and down alternately, the linear element expands and contracts with the movement of the two foot pedal assemblies to change the resistance provided by the linear element to the foot pedal assembly.

[0007] A further preferred embodiment of this utility model is as follows: the frame includes a front support and a rear support with two slide rails, the upper end of the front support is connected to the upper end of the rear support, two foot pedal assemblies are slidably arranged on the two slide rails respectively, and both ends of the linear element are connected to the top or bottom of the front support.

[0008] A further preferred embodiment of this utility model is as follows: the linear element has two lines, and each of the two foot pedal assemblies is provided with two sets of first guide rollers for the two linear elements to pass around. One linear element passes around the corresponding first guide rollers on the two foot pedal assemblies and both ends are connected to the top of the front bracket. The other linear element passes around the corresponding first guide rollers on the two foot pedal assemblies and both ends are connected to the bottom of the front bracket.

[0009] A further preferred embodiment of this invention is that the first guide roller around which the linear element passes is located inside the area enclosed by the linear element.

[0010] A further preferred embodiment of this utility model is as follows: the linkage mechanism includes at least one second guide roller mounted on the frame and a steel wire rope wound around the second guide roller, with the two ends of the steel wire rope respectively connected to two foot pedal assemblies.

[0011] A further preferred embodiment of this utility model is as follows: the foot pedal assembly includes a sliding seat slidably connected to the frame and a foot pedal fixed on the sliding seat. Roller brackets are fixed on the inner sides of the two sliding seats respectively, and a first guide roller is mounted on the roller bracket.

[0012] A further preferred technical solution of this utility model is: the two slide rails are inclined.

[0013] A further preferred embodiment of this utility model is that the front support and the rear support are combined to form an inverted V-shaped support structure.

[0014] A further preferred embodiment of this utility model is that a handrail is connected to the upper end of the rear support.

[0015] A further preferred embodiment of this invention is that the linear element is an elastic rope.

[0016] Compared with the prior art, the advantages of this utility model are that both foot pedal assemblies are equipped with first guide rollers for the linear element to pass over. The linear element passes over the first guide rollers installed on the two foot pedal assemblies, and both ends of the linear element are connected to the frame. The first guide rollers tension the linear element. When the user alternates between moving up and down on the two foot pedal assemblies, as the two foot pedal assemblies move away from each other, the distance between the two foot pedal assemblies increases, which stretches the linear element and increases the elasticity, thereby increasing the resistance exerted by the linear element on the foot pedal assembly. As the two foot pedal assemblies move closer to each other, the distance between the foot pedal assemblies decreases, which shortens the stretched linear element and reduces the elasticity, thereby reducing the resistance experienced by the foot pedal assembly. The resistance is adjusted according to the movement stroke of the foot pedal assembly, reducing the speed of the foot pedal assembly at the end of the stroke, mitigating the impact of the foot pedal assembly, and improving the comfort of exercise. Furthermore, the elasticity of the linear element can become an aid for starting the next stroke when the foot pedal assembly reaches the end of the stroke. In addition to buffering the impact of the foot pedal assembly, it can also push the foot pedal assembly to start, making the exercise smoother.

[0017] The linear element passes around the first guide rollers mounted on the two foot pedal assemblies, and both ends are connected to the frame. During the alternating up and down movement of the two foot pedal assemblies, the linear element is always in a taut state, avoiding the safety hazards caused by the sagging of the elastic element, and also preventing the partial failure of the elastic rope during movement, thus improving the utilization rate of the linear element. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the front support structure;

[0022] Figure 4 This is a schematic diagram showing the separation of the first linear element and the front support.

[0023] Figure 5 Schematic diagram of the foot pedal assembly Figure 1 ;

[0024] Figure 6 Schematic diagram of the foot pedal assembly Figure 2 ;

[0025] Figure 7 This is a schematic diagram of the rear support structure.

[0026] In the diagram: 1. Frame; 2. Rear support; 3. Foot pedal assembly; 4. Second linear element; 5. First linear element; 6. Linkage mechanism; 7. Handrail; 8. Front support; 9. Slide rail; 10. Hinge seat; 11. Locking element; 12. Top rod; 13. Bottom rod; 14. Connecting piece; 15. Connecting pin; 16. First guide roller; 17. Steel wire rope; 18. Second guide roller; 19. Foot pedal; 20. Sliding seat; 21. Roller bracket. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0028] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0029] Figures 1-7 As shown, the stair-climbing simulated fitness machine includes a frame 1, two foot pedal assemblies 3, and a linkage mechanism 6. The two foot pedal assemblies 3 are respectively located on the left and right sides of the frame 1 and can slide up and down relative to the frame 1. The linkage mechanism 6 connects the two foot pedal assemblies 3, so that while one foot pedal assembly 3 slides down, the other foot pedal assembly 3 slides up. This allows the exerciser to alternately step on the left and right foot pedal assemblies 3 with both feet, causing the two foot pedal assemblies 3 to move up and down alternately.

[0030] Figure 1 , Figure 2As shown, the fitness equipment also includes a damping mechanism that provides resistance to the foot pedal assembly 3 when the two foot pedal assemblies 3 move up and down alternately. The damping mechanism includes at least one elastic linear element. Each of the two foot pedal assemblies 3 is equipped with a first guide roller 16 that the linear element passes over. The linear element passes over the first guide roller 16 mounted on the two foot pedal assemblies 3, and both ends of the linear element are connected to the frame 1. The first guide roller 16 tensions the linear element that passes over it. When the two foot pedal assemblies 3 move up and down alternately, the linear element expands and contracts with the movement of the two foot pedal assemblies 3 to change the resistance provided by the linear element to the foot pedal assembly 3.

[0031] When the user alternates between moving their feet up and down on the two pedal assemblies 3, as the two pedal assemblies 3 move away from each other, the distance between them increases, stretching the linear element and increasing the elasticity, thus increasing the resistance exerted by the linear element on the pedal assembly 3. As the two pedal assemblies 3 move closer together, the distance between them decreases, shortening the stretched linear element and reducing the elasticity, thereby reducing the resistance experienced by the pedal assembly 3. The resistance is adjusted according to the change in the stroke of the pedal assembly 3, reducing the speed of the pedal assembly 3 at the end of the stroke, mitigating the impact of the pedal assembly 3, and improving the comfort of exercise. Furthermore, the elasticity of the linear element can become an aid for starting the next stroke when the pedal assembly 3 reaches the end of the stroke, cushioning the impact of the pedal assembly 3 and propelling the pedal assembly 3 to start, making the exercise smoother.

[0032] The linear element passes around the first guide roller 16 mounted on the two foot pedal assemblies 3, and both ends are connected to the frame 1. During the alternating up and down movement of the two foot pedal assemblies 3, the linear element is always in a taut state, avoiding the safety hazards caused by the sagging of the elastic element, and also preventing the partial failure of the elastic rope during the movement, thus improving the utilization rate of the linear element.

[0033] The frame 1 includes a front support 8 and a rear support 2 with two slide rails 9. The upper end of the front support 8 is connected to the upper end of the rear support 2. Two foot pedal assemblies 3 are slidably mounted on the two slide rails 9 respectively. Both ends of the linear element are connected to the top or bottom of the front support 8.

[0034] Both ends of the linear element are connected to the top or bottom of the front bracket 8 to ensure that the first guide roller 16 always tensions the linear element, preventing the first guide roller 16 from separating from the linear element during the upward or downward movement of the foot pedal assembly 3, thus maintaining the normal operation of the fitness equipment.

[0035] Figure 3 , Figure 4As shown, preferably, there are two linear elements, including a first linear element 5 and a second linear element 4. Each of the two foot pedal assemblies 3 has two sets of first guide rollers 16 for the first linear element 5 and the second linear element 4 to pass over. The first linear element 5 passes over the corresponding first guide rollers 16 on the two foot pedal assemblies 3, and both ends are connected to the top of the front support 8. The second linear element 4 passes over the corresponding first guide rollers 16 on the two foot pedal assemblies 3, and both ends are connected to the bottom of the front support 8, to achieve optimal resistance. This structure is the most preferred in this patent, but it is not limited to two linear elements; other numbers of linear elements are also suitable for this patent.

[0036] Each of the aforementioned first guide rollers 16 has one first guide roller 16, so that the foot pedal assembly 3 is provided with two first guide rollers 16. The two first guide rollers 16 correspond to the first linear element 5 and the second linear element 4, respectively. The first linear element 5 and the second linear element 4 pass around the two first guide rollers 16 on the foot pedal assembly 3.

[0037] The front support 8 includes a top rod 12 at the top and a bottom rod 13 at the bottom. The top rod 12 connects to the upper ends of two slide rails 9, and the bottom rod 13 connects to the lower ends of the two slide rails 9 for support on the ground. The bottom rod 13 is provided with two connecting pieces 14. Both ends of the first linear element 5 are connected to the top rod 12, and both ends of the second linear element 4 are connected to the two connecting pieces 14. Both the top rod 12 and the connecting pieces 14 are provided with connecting pins 15 for hooking the ends of the linear elements.

[0038] Figure 5 , Figure 6 As shown, the foot pedal assembly 3 includes a sliding seat 20 slidably connected to the frame 1 and a foot pedal 19 fixed on the sliding seat 20. Roller brackets 21 are fixed on the inner sides of the two sliding seats 20 respectively. The two first guide rollers 16 mentioned above are coaxially mounted on the roller brackets 21. The two first guide rollers 16 on the roller brackets 21 can rotate independently.

[0039] The first guide roller 16, which the linear element bypasses, is located inside the area enclosed by the linear element.

[0040] Preferably, the linear element is an elastic rope.

[0041] The slide rail 9 mentioned above is tilted.

[0042] Figure 1 , Figure 2 As shown, the front support 8 and the rear support 2 are combined to form an inverted V-shaped support structure, which makes the front support 8 and the rear support 2 more stably supported on the ground.

[0043] Figure 7As shown, preferably, the upper end of the front support 8 is rotatably connected to the upper end of the rear support 2. Two hinge seats 10 are fixed to the upper end of the rear support 2, and the upper ends of the two slide rails 9 are respectively hinged to the two hinge seats 10, allowing the front support 8 and the rear support 2 to be rotatably folded or unfolded. When the front support 8 and the rear support 2 are unfolded, they combine to form the aforementioned inverted V-shaped support structure. The rotation of the front support 8 and the rear support 2 is locked by a locking element 11, such as a locking bolt. The slide rail 9 has a threaded hole. When the front support 8 and the rear support 2 are unfolded, the locking bolt passes through the hinge seat 10 and is threaded into the threaded hole on the slide rail 9 to lock the relative rotation of the front support 8 and the rear support 2, keeping them in the unfolded state. The locking element 11 in this patent is not limited to the aforementioned locking bolt; other conventional locking structures are also applicable to this patent.

[0044] The aforementioned foldable structure is not a necessary structure for this patent. The upper ends of the front bracket 8 and the rear bracket 2 can always remain in a fixed state and cannot rotate.

[0045] The upper end of the rear support 2 is connected to a handrail 7 for exercisers to step on and hold onto. It should be noted that the handrail 7 is not necessary, and the rear support 2 may not be equipped with a handrail 7.

[0046] Figure 3 As shown, the linkage mechanism 6 includes at least one second guide roller 18 mounted on the frame 1 and a steel wire rope 17 wound around the second guide roller 18, with the two ends of the steel wire rope 17 respectively connected to two foot pedal assemblies 3.

[0047] Preferably, there are two second guide rollers 18, and the two second guide rollers 18 are fixedly mounted on the top rod 12.

[0048] The stair-climbing simulated fitness device provided by this utility model has been introduced above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A stair-climbing simulated fitness device, comprising a frame, two foot pedal assemblies, and a linkage mechanism. The two foot pedal assemblies are respectively disposed on the left and right sides of the frame and can slide up and down relative to the frame. The linkage mechanism connects the two foot pedal assemblies, so that while one foot pedal assembly slides downward, the other foot pedal assembly slides upward. Its characteristic is that... It also includes a damping mechanism that provides resistance when the two pedal assemblies move up and down alternately. The damping mechanism includes at least one elastic linear element. Each of the two pedal assemblies is equipped with a first guide roller around which the linear element passes. The linear element passes over the first guide rollers mounted on the two pedal assemblies, and both ends of the linear element are connected to the frame. The first guide rollers tension the linear element that passes over the linear element. When the two pedal assemblies move up and down alternately, the linear element expands and contracts with the movement of the two pedal assemblies to change the resistance provided by the linear element to the pedal assemblies.

2. The stair-climbing simulated fitness device according to claim 1, characterized in that, The frame includes a front support and a rear support with two slide rails. The upper end of the front support is connected to the upper end of the rear support. Two foot pedal assemblies are slidably mounted on the two slide rails respectively. Both ends of the linear element are connected to the top or bottom of the front support.

3. The stair-climbing simulated fitness device according to claim 2, characterized in that, The linear element has two components. Each of the two foot pedal assemblies is provided with two sets of first guide rollers for the two linear elements to pass around. One linear element passes around the corresponding first guide rollers on the two foot pedal assemblies and is connected to the top of the front bracket at both ends. The other linear element passes around the corresponding first guide rollers on the two foot pedal assemblies and is connected to the bottom of the front bracket at both ends.

4. The stair-climbing simulated fitness device according to claim 1, 2, or 3, characterized in that, The first guide roller around which the linear element passes is located inside the area enclosed by the linear element.

5. The stair-climbing simulated fitness device according to claim 1, characterized in that, The linkage mechanism includes at least one second guide roller mounted on the frame and a steel wire rope wound around the second guide roller, with the two ends of the steel wire rope connected to two foot pedal assemblies respectively.

6. The stair-climbing simulated fitness device according to claim 1, characterized in that, The foot pedal assembly includes a sliding seat slidably connected to the frame and a foot pedal fixed on the sliding seat. Roller brackets are fixed on the inner sides of the two sliding seats, and a first guide roller is mounted on the roller bracket.

7. The stair-climbing simulated fitness device according to claim 2, characterized in that, The two slide rails are set at an angle.

8. The stair-climbing simulated fitness device according to claim 2 or 7, characterized in that, The front and rear supports combine to form an inverted V-shaped support structure.

9. The stair-climbing simulated fitness device according to claim 2, characterized in that, The upper end of the rear support is connected to a handrail.

10. The stair-climbing simulated fitness device according to claim 1, characterized in that, The linear element is an elastic rope.

Citation Information

Patent Citations

  • Ladder-climbing body building apparatus

    CN201143357Y