Buffer structure on elliptical machine
By setting elastic parts and arc-shaped track grooves on the elliptical machine, the hard contact problem in the limit position of the foot rod group is solved, and the buffering effect is achieved to avoid knee damage and O-legs.
Patent Information
- Application Number
- CN202422288520.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-19
AI Technical Summary
Existing elliptical machines lack rebound buffer when the user's foot rod sets to the limit position, resulting in long-term exercise that may damage the knee.
An elastic member is placed on the pivot shaft of the foot rod group and the lower end of the support rod, and direct contact is blocked through the elastic member to achieve a buffering effect. An arc-shaped track groove is designed in the track structure to adjust the movement path of the foot rod.
It effectively avoids the user's knee damage when using the elliptical machine for a long time, reduces the impact on the knee through flexible contact, and design avoids the generation of O-shaped legs.
Smart Images
Figure CN223233221U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fitness equipment, in particular to a buffer structure on an elliptical machine. Background Art
[0002] In current elliptical machines, when a user steps on the pedals to exercise, there is no rebound buffer component on the pivot shaft between the front end of the pedal assembly and the lower end of the support rod. Both are in hard direct contact. Therefore, when the user steps on the pedal assembly, the pedal assembly will be stepped on rigidly and directly to the preset extreme position. If the user exercises on the elliptical machine for a long time, it will cause damage to the human knees. Utility Model Content
[0003] The purpose of the utility model is to provide a buffer structure on an elliptical machine, which overcomes the above-mentioned defects and performs buffering when the pedal rod group reaches a preset limit position.
[0004] In order to achieve the above objectives, the solution of the present invention is:
[0005] The invention relates to a buffer structure on an elliptical machine, which includes a frame and a damper. The damper is arranged at the rear end of the frame, and the damper has a central axis arranged on the left and right. The elliptical machine also includes a linkage rod device, and two groups of linkage rod devices are respectively arranged on the left and right sides of the frame. The linkage rod device includes a support rod and a pedal rod group. The support rod is arranged at the front end of the frame, and the middle part is pivotally connected to the frame. The pedal rod group extends forward and backward, and the rear end thereof is eccentrically arranged on the damper relative to the central axis, and the front end thereof is pivotally connected to the lower end of the support rod through a first pivot shaft. A first elastic member is sleeved on the first pivot shaft. The first elastic member is used to block direct contact between the front end of the pedal rod group and the first pivot shaft to buffer the pressure between the front end of the pedal rod group and the first pivot shaft.
[0006] Furthermore, the pedal rod group includes a pedal rod and a connecting rod, the rear end of the pedal rod is eccentrically set on the damper, the front end of the pedal rod is connected to the frame for sliding back and forth, the connecting rod extends back and forth, the rear end of the connecting rod is pivoted to the middle part of the pedal rod through a second pivot shaft, and the front end of the connecting rod is pivoted to the lower end of the support rod through the first pivot shaft, and the first elastic member is used to block the direct contact between the front end of the connecting rod and the first pivot shaft to buffer the pressure between the front end of the connecting rod and the first pivot shaft.
[0007] Furthermore, a second elastic member is sleeved on the second pivot shaft, and the second elastic member is used to block the direct contact between the rear end of the connecting rod and the second pivot shaft, so as to buffer the pressure between the rear end of the connecting rod and the second pivot shaft.
[0008] Furthermore, the first elastic member and the second elastic member are both rubber rings.
[0009] Furthermore, a distance between a sliding path of the front end of the pedal rod on the left side of the frame and a sliding path of the front end of the pedal rod on the right side of the frame gradually decreases from the rear end to the front end.
[0010] Furthermore, a track structure is provided on the frame, which extends forward and backward, and arc-shaped track grooves extending forward and backward are provided on both sides of the left and right sides of the track structure, and the spacing between the two track grooves gradually decreases from the rear end to the front end. When the track structure is installed on the frame, the two track grooves are respectively located on the left and right sides of the frame, and pulleys are provided at the front ends of the foot pedals on the left side of the frame. The pulley of the foot pedal on the left side of the frame slides forward and backward along the track groove on the left side of the frame, and the pulley of the foot pedal on the right side of the frame slides forward and backward along the track groove on the right side of the frame.
[0011] Furthermore, the track structure is arc-shaped, with the curved concave portion facing upward. When the track structure is installed on the frame, the rear end of the track groove is the lowest point of the pulley sliding, and the extreme position where the pulley can slide toward the front end of the track groove is the highest point of the pulley sliding.
[0012] Furthermore, an arc-shaped plate is formed between the two track grooves. The plate is used to be fixed on the frame, and its width gradually decreases from the rear end to the front end of the plate.
[0013] Furthermore, the pedal bar assembly is provided with a pedal for stepping on.
[0014] After adopting the above solution, the beneficial effects of the utility model are:
[0015] The utility model provides a first elastic member on a pivot shaft pivotally connected to the front end of the pedal rod assembly and the lower end of the support rod. The first elastic member blocks direct contact between the front end of the pedal rod assembly and the first pivot shaft. When the pedal rod assembly reaches a preset limit position, the pressure between the front end of the pedal rod assembly and the first pivot shaft is buffered, so that the two can be in flexible indirect contact, thereby preventing the user from injuring the knees when using the elliptical machine for a long time. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a partial structural exploded view of the utility model;
[0018] Figure 3 It is a schematic diagram of the track structure of the present utility model.
[0019] Explanation of reference numerals: 10, frame; 20, damper; 30, linkage rod device; 31, pedal rod assembly; 311, pedal rod; 3111, pedal; 3112, pulley; 312, connecting rod; 32, support rod; 33, first pivot axis; 34, second pivot axis; 35, first elastic member; 36, second elastic member; 40, track structure; 41, track groove; 42, plate. DETAILED DESCRIPTION
[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] like Figures 1 to 3 As shown, the utility model provides a buffer structure on an elliptical machine, which includes a frame 10, a damper 20, and the damper 20 is arranged at the rear end of the frame 10. The damper 20 has a central axis arranged on the left and right. It also includes a linkage rod device 30, and two groups of linkage rod devices 30 are respectively arranged on the left and right sides of the frame 10. The linkage rod device 30 includes a support rod 32 and a pedal rod group 31. The support rod 32 is arranged at the front end of the frame 10, and the middle part is pivotally connected to the frame 10. The pedal rod group 31 extends forward and backward, and the rear end thereof is eccentrically arranged on the damper 20 relative to the central axis, and the front end thereof is pivotally connected to the lower end of the support rod 32 through a first pivot shaft 33. A first elastic member 35 is sleeved on the first pivot shaft 33. The first elastic member 35 is used to block the direct contact between the front end of the pedal rod group 31 and the first pivot shaft 33 to buffer the pressure between the front end of the pedal rod group 31 and the first pivot shaft 33.
[0022] The utility model provides a first elastic member 35 mounted on the pivot axis at which the front end of the pedal rod assembly 31 and the lower end of the support rod 32 are pivotally connected. The first elastic member 35 blocks direct contact between the front end of the pedal rod assembly 31 and the first pivot axis 33. When the pedal rod assembly 31 reaches a preset limit position, the pressure between the front end of the pedal rod assembly 31 and the first pivot axis 33 is buffered, so that the two have flexible indirect contact, thereby preventing the user from injuring the knees when using the elliptical machine for a long time.
[0023] Specifically, the pedal rod assembly 31 includes a pedal rod 311 and a connecting rod 312. The rear end of the pedal rod 311 is eccentrically arranged on the damper 20. The front end of the pedal rod 311 is connected to the frame 10 for sliding back and forth. The connecting rod 312 extends back and forth, and its rear end is pivotally connected to the middle part of the pedal rod 311 through a second pivot shaft 34. Its front end is pivotally connected to the lower end of the support rod 32 through the first pivot shaft 33. The first elastic member 35 is used to block the direct contact between the front end of the connecting rod 312 and the first pivot shaft 33 to buffer the pressure between the front end of the connecting rod 312 and the first pivot shaft 33.
[0024] Specifically, a second elastic member 36 is sleeved on the second pivot shaft 34. The second elastic member 36 is used to block the direct contact between the rear end of the connecting rod 312 and the second pivot shaft 34, so as to buffer the pressure between the rear end of the connecting rod 312 and the second pivot shaft 34, and further prevent the user from injuring the knees when using the elliptical machine for a long time.
[0025] Preferably, the first elastic member 35 and the second elastic member 36 are both rubber rings.
[0026] Furthermore, the distance between the sliding path of the front end of the footrest rod 311 on the left side of the frame 10 and the sliding path of the front end of the footrest rod 311 on the right side of the frame 10 gradually decreases from the rear end to the front end, so that the reciprocating movement of the two footrest rods 311 towards and away from each other can prevent the user from developing bow legs after long-term exercise.
[0027] Preferably, a track structure 40 is provided on the frame 10, and the track structure 40 extends forward and backward. The left and right sides of the track structure 40 are both provided with arc-shaped track grooves 41 extending forward and backward. The spacing between the two track grooves 41 gradually decreases from the rear end to the front end. When the track structure 40 is installed on the frame 10, the two track grooves 41 are respectively located on the left and right sides of the frame 10. The front ends of the pedal rods 311 on the left and right sides of the frame 10 are both provided with pulleys 3112. The pulley 3112 of the pedal rod 311 on the left side of the frame 10 is along the frame 10. The left track groove 41 slides back and forth, and the pulley 3112 of the pedal rod 311 on the right side of the frame 10 slides back and forth along the track groove 41 on the right side of the frame 10; so that when the user steps on the pedal rod 311 on the left side of the frame 10, the pulley 3112 at the front end of the left pedal rod 311 slides forward in the track groove 41 and gradually deviates to the right; when the user steps on the pedal rod 311 on the right side of the frame 10, the pulley 3112 at the front end of the right pedal rod 311 slides forward in the track groove 41 and gradually deviates to the left;
[0028] Specifically, the pulley 3112 at the front end of the pedal rod 311 on the left side of the frame 10 gradually deviates to the right while sliding forward in the track groove 41, that is, takes an inclined route, and the rear end of the pedal rod 311 on the left side of the frame 10 is pivoted to the damper 20, and at the pivot joint, the rear end of the pedal rod 311 can swing left and right relative to the damper 20, that is, it can adapt to the inclined route taken by the pulley 3112, so that when the pedal rod 311 on the left side of the frame 10 moves forward, it also gradually tilts and swings to the right. Similarly, the pulley 3112 at the front end of the pedal rod 311 on the right side of the frame 10 is pivoted to the damper 20. When the pedal rod 311 on the right side of the frame 10 moves forward, it deviates to the left, that is, it takes an inclined route. The rear end of the pedal rod 311 on the right side of the frame 10 is pivoted to the damper 20, and at the pivot point, the rear end of the pedal rod 311 can swing left and right relative to the damper 20, that is, it can adapt to the inclined route of the pulley 3112, so that when the pedal rod 311 on the right side of the frame 10 moves forward, it also gradually tilts and swings to the left, so as to adapt to the inclined route of the pulley 3112. It can be understood that the position where the connecting rod 312 and the pedal rod 311 are pivoted can also adapt to the offset swing of the foot rod 311.
[0029] Specifically, the track structure 40 is arc-shaped, with its curved concave portion facing upward. When the track structure 40 is installed on the frame 10, the rear end of the track groove 41 is the lowest point of the sliding of the pulley 3112, and the extreme position where the pulley 3112 can slide toward the front end of the track groove 41 is the highest point of the sliding of the pulley 3112.
[0030] Specifically, an arc-shaped plate 42 is formed between the two track grooves 41 . The plate 42 is used to be fixed on the frame 10 . The width of the plate 42 gradually decreases from the rear end to the front end.
[0031] Furthermore, the pedal rod assembly 31 is provided with a foot pedal 3111 for stepping on. Specifically, the foot pedal 3111 is provided on the pedal rod 311 to increase the contact area between the user's foot and the pedal rod 311 for easy stepping.
[0032] Specifically, the pedal rod assembly 31 performs an up and down circular motion driven by an external force.
[0033] Specifically, the up and down cyclic movements of the pedal rod groups 31 on the left and right sides of the frame 10 are staggered.
[0034] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the present disclosure and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, one of ordinary skill in the art will understand other possible embodiments and the advantages of the present invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.
[0035] At the same time, the directions such as front, back, left, and right involved in this embodiment are only used as a reference for directions and do not represent directions in actual use. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.
[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. Any equivalent changes made based on the key design of this case shall fall within the scope of protection of this case.
Claims
1. A buffer structure for an elliptical machine, the elliptical machine comprising a frame and a damper, wherein the damper is disposed at the rear end of the frame and has a central axis disposed left and right, characterized in that: The pedal assembly further comprises a linkage rod device, wherein the two linkage rod devices are respectively arranged on the left and right sides of the frame, the linkage rod device comprising a support rod and a pedal rod group, the support rod being arranged at the front end of the frame, the middle portion of which is pivotally connected to the frame, the pedal rod group extending forward and backward, the rear end of which is eccentrically arranged on the damper relative to the central axis, the front end of which is pivotally connected to the lower end of the support rod through a first pivot shaft, the first elastic member being sleeved on the first pivot shaft, the first elastic member being used to block direct contact between the front end of the pedal rod group and the first pivot shaft, so as to buffer the pressure between the front end of the pedal rod group and the first pivot shaft.
2. The buffer structure on the elliptical machine according to claim 1, characterized in that: The pedal rod assembly includes a pedal rod and a connecting rod. The rear end of the pedal rod is eccentrically arranged on the damper, and the front end of the pedal rod is connected to the frame for sliding back and forth. The connecting rod extends back and forth, and its rear end is pivotally connected to the middle part of the pedal rod through a second pivot shaft, and its front end is pivotally connected to the lower end of the support rod through the first pivot shaft. The first elastic member is used to block direct contact between the front end of the connecting rod and the first pivot shaft to buffer the pressure between the front end of the connecting rod and the first pivot shaft.
3. The buffer structure on the elliptical machine according to claim 2, characterized in that: A second elastic member is sleeved on the second pivot shaft. The second elastic member is used to block direct contact between the rear end of the connecting rod and the second pivot shaft, so as to buffer the pressure between the rear end of the connecting rod and the second pivot shaft.
4. The buffer structure for an elliptical machine according to claim 3, characterized in that: The first elastic member and the second elastic member are both rubber rings.
5. The buffer structure for an elliptical machine according to claim 2, characterized in that: The distance between the sliding path of the front end of the pedal rod on the left side of the rack and the sliding path of the front end of the pedal rod on the right side of the rack gradually decreases from the rear end to the front end.
6. The buffer structure for an elliptical machine according to claim 5, characterized in that: A track structure is provided on the frame, which extends forward and backward. Arc-shaped track grooves extending forward and backward are provided on both sides of the left and right sides of the track structure. The spacing between the two track grooves gradually decreases from the rear end to the front end. When the track structure is installed on the frame, the two track grooves are respectively located on the left and right sides of the frame. Pullies are provided at the front ends of the pedal rods on the left and right sides of the frame. The pulley of the pedal rod on the left side of the frame slides forward and backward along the track groove on the left side of the frame, and the pulley of the pedal rod on the right side of the frame slides forward and backward along the track groove on the right side of the frame.
7. The buffer structure for an elliptical machine according to claim 6, characterized in that: The track structure is arc-shaped with its curved concave portion facing upward. When the track structure is installed on the frame, the rear end of the track groove is the lowest point of the pulley sliding, and the extreme position where the pulley can slide toward the front end of the track groove is the highest point of the pulley sliding.
8. The buffer structure for an elliptical machine according to claim 6, characterized in that: An arc-shaped plate is formed between the two track grooves. The plate is used to be fixed on the frame. From the rear end to the front end of the plate, Its width gradually decreases.
9. The buffer structure for an elliptical machine according to claim 1, characterized in that: The pedal rod assembly is provided with a pedal for stepping on.