Elliptical training machine
By incorporating rollers and optimizing the linkage structure in the elliptical trainer, the foot pedals slide on the rollers, resolving the contradiction between small size and large stride length. This achieves a compact design and a large stride length, enhancing the product's performance and competitiveness.
Patent Information
- Application Number
- CN202520172178.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing elliptical trainers cannot balance small size and large stride, resulting in excessive space usage.
By installing rollers on the support link, the foot pedal slides back and forth on the rollers via the foot pedal link, increasing the forward and backward movement distance of the foot pedal. The distance from the roller axis to the frame connection point is designed to be greater than the distance between the crank and the support link connection point, increasing the foot pedal's stride.
While maintaining a small size, it achieves a large stride movement, improving the product's performance and competitiveness.
Smart Images
Figure CN223944866U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fitness equipment technology, and in particular to an elliptical trainer. Background Technology
[0002] An elliptical trainer, also known as an elliptical exercise machine, is an indoor fitness equipment primarily used for cardiovascular exercise. Based on its unique elliptical pedal design, the elliptical trainer uses a flywheel and magnets to create resistance. When stepping, the user's feet remain in contact with the pedals, forming an elliptical path. This motion simulates the movement of cross-country skiing, making the exercise more natural and comfortable. Current elliptical trainers use a crank-rocker mechanism to achieve the elliptical trajectory of the pedals. Typically, the pedals slide back and forth on a connecting rod, and the pedals are rotatably connected to the rocker via a linkage. However, due to the limitation of the connection point between the crank and the connecting rod, the pedals can only slide back and forth on the connecting rod between the crank and the rocker. Therefore, to increase the stride length, the distance between the crank and the rocker needs to be increased, resulting in an excessively large size and space requirement for the elliptical trainer.
[0003] The above content is only used to assist in understanding the technical solution of the utility model and does not represent an admission that the above content is prior art. Utility Model Content
[0004] In view of the above problems, this utility model proposes an elliptical training machine, which aims to solve the technical problem that elliptical training machines cannot simultaneously achieve small size and large stride.
[0005] To achieve the above objectives, the elliptical training machine proposed in this utility model includes a frame, a crank-rocker mechanism, a foot pedal mechanism, and rollers;
[0006] The crank-rocker mechanism includes a rocker component, a crank component, and a support link with both ends rotatably connected to the rocker component and the crank component. One end of the rocker component and one end of the crank component are rotatably connected to the frame. The roller is mounted on the support link, and the distance between the axis of the roller and the connection point between the crank component and the frame is greater than the distance between the connection point between the crank component and the frame and the connection point between the crank component and the support link.
[0007] The foot pedal mechanism includes a foot pedal link and a foot pedal fixedly installed on the foot pedal link. The front end of the foot pedal link is rotatably connected to the rocker member, and the rear end of the foot pedal link is slidably connected to the roller.
[0008] In one embodiment, the connection point between the crank and the support rod and the axis of the roller are spaced apart along the length of the support rod.
[0009] In an embodiment, the axis of the roller is located in front of the connecting point between the crank member and the support link.
[0010] In an embodiment, the rear end of the foot pedal extends out of the crank member.
[0011] In an embodiment, the connecting point between the crank member and the support link is defined as point A, the axis of the roller is defined as point B, and the connecting point between the crank member and the frame is defined as point C, wherein the distance between A and B is smaller than the distance between A and C.
[0012] In an embodiment, the connecting point between the support link and the swing member is defined as point D, the connecting point between the swing member and the frame is defined as point E, and the connecting point between the foot pedal link and the swing member is defined as point F, wherein point D is located between E and F.
[0013] In an embodiment, the foot pedal link comprises a first main section and a first front bending section connected to the front end of the first main section, the first main section extends in the front-rear direction, the foot pedal is installed on the first main section, the first front bending section is bent from back to front and downward, and the front end of the first front bending section is rotatably connected to the lower end of the swing member.
[0014] In an embodiment, the support link comprises a second main section and a second front bending section connected to the front end of the second main section, the second main section extends in the same direction as the first main section, the roller is installed on the second main section, the second front bending section is bent from back to front and upward, and the front end of the second front bending section is rotatably connected to the middle part of the swing member.
[0015] In an embodiment, the support link and the foot pedal link are arranged on the inner and outer sides of the swing member respectively.
[0016] In an embodiment, the crank rocker mechanism, the foot pedal mechanism, and the roller are provided in two groups, and one group of the crank rocker mechanism, the foot pedal mechanism, and the roller is arranged on each of the left and right sides of the frame; the elliptical training machine further comprises a handrail, the handrail is detachably or foldably connected to the swing member, and the connecting point between the handrail and the swing member is located below the highest point in the movement process of the foot pedal.
[0017] The utility model elliptical training machine passes through setting up the gyro wheel on the support connecting rod, makes the footboard slide on the gyro wheel through the footboard connecting rod, compares the footboard to slide on the support connecting rod directly with the mode, will not be limited by the connecting point of support connecting rod and crank member, thereby make the footboard can slide on the both sides of crank member, but not only on the front side of crank member, so, in realizing the same synchronous amplitude case, can move forward the crank member, then can make the structure of whole elliptical training machine more compact, occupies the space smaller, and under the premise of equal occupying space (front and back direction), since the footboard connecting rod can drive the footboard to move on the rear side of gyro wheel, then increased the back and forth sliding path of footboard, and further increased the stride of whole elliptical training machine.
[0018] Meanwhile, by making the distance between the axis of gyro wheel and the connecting point of crank member and rack greater than the distance between the connecting point of crank member and rack and the connecting point of crank member and support connecting rod, compared with the mode that the axis of gyro wheel and the connecting point of crank member and support connecting rod coincide, can increase the distance between the axis of gyro wheel and the connecting point of crank member and rack, so, can increase the rotating radius of the axis of gyro wheel, thereby can increase the front and back moving distance of whole footboard relative to ground, therefore, can increase the movement stride of footboard to a certain extent. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0020] Figure 1 The structure schematic diagram of one embodiment of the utility model elliptical training machine is shown;
[0021] Figure 2 For Figure 1 The front view of the elliptical training machine;
[0022] Figure 3 For Figure 1 The assembly schematic diagram of crank rocker mechanism and footboard mechanism of the elliptical training machine;
[0023] Figure 4 For Figure 3 The exploded view of the structure;
[0024] Figure 5 The structure schematic diagram of another embodiment of the utility model elliptical training machine.
[0025] Explanation of reference signs:
[0026] Reference Name Reference Name Reference Name 100 Frame 200 Crank rocker mechanism 210 Swing 220 Crank 230 Support link 231 Second body segment 232 Second front bend segment 300 Footrest mechanism 310 Footrest link 311 First body segment 312 First front bend segment 320 Footrest plate 400 Roller 500 Handrail
[0027] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.
[0029] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture. If the specific posture changes, the directional indications will also change accordingly.
[0030] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature can be above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature can be below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is lower than that of the second feature.
[0031] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense. For example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0032] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme.
[0033] The utility model provides an elliptical training machine.
[0034] In the embodiments of the utility model, please refer to Figure 1 And Figure 2 The elliptical training machine comprises a rack 100, a crank rocker mechanism 200, a foot pedal mechanism 300 and a roller 400.
[0035] The crank rocker mechanism 200 comprises a swing piece 210, a crank piece 220 and a support connecting rod 230 rotatably connected to the swing piece 210 and the crank piece 220 at both ends, and one end of the swing piece 210 and the crank piece 220 is rotatably connected to the rack 100; the roller 400 is installed on the support connecting rod 230, and the distance between the shaft center of the roller 400 and the connecting point of the crank piece 220 and the rack 100 is greater than the distance between the connecting point of the crank piece 220 and the rack 100 and the connecting point of the crank piece 220 and the support connecting rod 230.
[0036] The foot pedal mechanism 300 comprises a foot pedal connecting rod 310 and a foot pedal 320 fixedly installed on the foot pedal connecting rod 310, the front end of the foot pedal connecting rod 310 is rotatably connected to the swing piece 210, and the rear part of the foot pedal connecting rod 310 is slidably connected to the roller 400.
[0037] In the embodiments, the rack 100 is used to provide installation and support for the crank rocker mechanism 200, the foot pedal mechanism 300 and the like, and the overall frame of the rack 100 can be many, which can be designed according to actual needs, for example, the rack 100 can be designed in the form similar to a bicycle frame or a scooter frame, and the shape and structure of the rack 100 are not limited here. It can be understood that the crank rocker mechanism 200, the foot pedal mechanism 300 and the roller 400 all have two groups, and one group of the crank rocker mechanism 200, the foot pedal mechanism 300 and the roller 400 is arranged on the left and right sides of the rack 100 respectively to correspond to the left and right feet of the user exercising.
[0038] It should be noted that in the crank rocker mechanism 200, the crank member 220 is defined as a mechanism capable of rotating a full circle. The rocker member 210 is defined as a mechanism capable of only swinging within a certain range and incapable of rotating a full circle. The crank member 220 and the rocker member 210 can be in a rod shape or a disc shape. In order to reduce weight, simplify structure, and reduce the occupied space of the elliptical trainer, the crank member 220 and the rocker member 210 can be in a rod shape. For the convenience of understanding, the crank member 220 and the rocker member 210 are exemplarily described as being in a rod shape in the following.
[0039] The foot pedal 320 is used to provide stable support for the user's feet, and when the user steps on the foot pedal 320, the foot pedal 320 can realize power transmission to convert the action into the power of the foot pedal link 310 movement. The foot pedal 320 can be fixedly installed on the foot pedal link 310 by screws, welding, or the like. Compared with the mode that the foot pedal 320 is directly connected to the support link 230 through the rollers 400 or the linear guide rails, the mode that the foot pedal 320 is fixedly installed on the foot pedal link 310 can simplify the structure and installation of the foot pedal 320. The foot pedal 320 can include only a pedal, or can include a pedal, a front baffle, a rear baffle, a side baffle, etc. The specific structure of the foot pedal 320 is not limited herein.
[0040] The rotational connection between each of the above components can be a hinge connection through a shaft and a shaft hole. The support link 230 and the foot pedal link 310 can be straight rods, or can be designed as curved rods according to needs, which are not specifically limited herein. The length and width of the support link 230 and the foot pedal link 310 can also be selected and designed according to actual needs. The rear end of the support link 230 or a position adjacent to the rear end of the support link 230 can be rotatably connected to the crank member 220. The rollers 400 can be fixedly connected to the support link 230, so that the foot pedal link 310 slides forward and backward on the rolling surface of the rollers 400. Of course, the rollers 400 can also be rotatably connected to the support link 230, so that the foot pedal link 310 slides forward and backward on the rolling surface of the rollers 400 while driving the rollers 400 to roll, which makes the sliding of the foot pedal link 310 relative to the support link 230 more flexible and smooth. The rollers 400 can be installed on the inner side wall, the outer side wall, the top wall, etc. of the support link 230, which are not specifically limited herein.
[0041] By arranging the roller 400 on the support connecting rod 230, the foot pedal 320 slides on the roller 400 forward and backward through the foot pedal connecting rod 310, compared with the mode that the foot pedal 320 directly slides on the support connecting rod 230, the foot pedal 320 can slide on both sides of the crank member 220, not only on the front side of the crank member 220, so that the crank member 220 can be moved forward, and the structure of the whole elliptical trainer is more compact, and the space occupied is smaller; under the premise of the same space (front and back direction), since the foot pedal connecting rod 310 can drive the foot pedal 320 to move on the rear side of the roller 400, the forward and backward reciprocating sliding path of the foot pedal 320 is increased, and thus the stride of the whole elliptical trainer is increased.
[0042] The distance between the axis of the roller 400 (such as point B in the figure) and the connecting point (such as point C in the figure) of the crank member 220 and the rack 100 is greater than the distance between the connecting point (such as point C in the figure) of the crank member 220 and the rack 100 and the connecting point of the crank member 220 and the support connecting rod 230 (such as point A in the figure). Figure 2 Figure 2 The distance between the axis of the roller 400 (such as point B in the figure) and the connecting point (such as point C in the figure) of the crank member 220 and the rack 100 is greater than the distance between the connecting point (such as point C in the figure) of the crank member 220 and the rack 100 and the connecting point of the crank member 220 and the support connecting rod 230 (such as point A in the figure). Figure 2 Figure 2 The distance between the axis of the roller 400 (such as point B in the figure) and the connecting point (such as point C in the figure) of the crank member 220 and the rack 100 is greater than the distance between the connecting point (such as point C in the figure) of the crank member 220 and the rack 100 and the connecting point of the crank member 220 and the support connecting rod 230 (such as point A in the figure). Figure 2
[0043] By arranging the roller 400 on the support connecting rod 230, the foot pedal 320 slides on the roller 400 forward and backward through the foot pedal connecting rod 310, compared with the mode that the foot pedal 320 directly slides on the support connecting rod 230, the foot pedal 320 can slide on both sides of the crank member 220, not only on the front side of the crank member 220, so that the crank member 220 can be moved forward, and the structure of the whole elliptical trainer is more compact, and the space occupied is smaller; under the premise of the same space (front and back direction), since the foot pedal connecting rod 310 can drive the foot pedal 320 to move on the rear side of the roller 400, the forward and backward reciprocating sliding path of the foot pedal 320 is increased, and thus the stride of the whole elliptical trainer is increased.The distance between the axis of the roller 400 (such as point B in the figure) and the connecting point (such as point C in the figure) of the crank member 220 and the rack 100 is greater than the distance between the connecting point (such as point C in the figure) of the crank member 220 and the rack 100 and the connecting point of the crank member 220 and the support connecting rod 230 (such as point A in the figure).
[0044] In an embodiment, as shown in Figures 1 to 5 , the connecting point of the curved member 220 and the support link 230 and the axis of the roller 400 are arranged in a spaced manner along the length direction of the support link 230. In this way, the roller 400 is arranged at a position where the support link 230 is located at the front side or the rear side of the curved member 220, compared with the way that the roller 400 is arranged below the curved member 220, there is no need to additionally arrange an extension rod to connect the roller 400 and the link, thus the connection structure can be simplified, and the structure of the whole elliptical trainer is more compact.
[0045] Further, as shown in Figure 1 and Figure 2 , the axis of the roller 400 is located at the front side of the connecting point of the curved member 220 and the support link 230. In this way, compared with the way that the axis of the roller 400 is located at the rear side of the connecting point of the curved member 220 and the support link 230, the rear end of the support link 230 does not need to protrude from the curved member 220, thus the overall structure is more compact and reasonable.
[0046] Further, the rear end of the foot pedal 320 protrudes from the curved member 220. In this way, the foot pedal 320 can slide at the front side and the rear side of the curved member 220, compared with the scheme that the foot pedal 320 can only slide between the curved member 220 and the swing member 210, the curved member 220 can be moved forward in the case of realizing the same stride, thus the structure of the whole elliptical trainer is more compact, and the space occupied is smaller; under the premise of the same space (front-rear direction) occupied, since the foot pedal link 310 can drive the foot pedal 320 to move at the rear side of the curved member 220, the front-rear reciprocating sliding path of the foot pedal 320 is increased, and thus the stride of the whole elliptical trainer is increased.
[0047] In combination with the above-mentioned embodiment that the connecting point of the curved member 220 and the support link 230 and the axis of the roller 400 are arranged in a spaced manner along the length direction of the support link 230, further, as shown in Figure 2 and Figure 3 , it is defined that the curved member 220 and the support link 230 are connected at point A, the axis of the roller 400 is point B, and the curved member 220 and the frame 100 are connected at point C, wherein the distance between A and B is smaller than the distance between A and C.
[0048] In this embodiment, by making the distance between A and B smaller than the distance between A and C, the roller 400 is arranged adjacent to the connecting point of the curved member 220 and the support link 230, the space at the rear side of the curved member 220 can be more effectively utilized while the stride of the foot pedal 320 is increased, thus the structure of the whole elliptical trainer is more compact.
[0049] In an embodiment, as shown in Figure 1 andFigure 2 As shown, the connection point of the support link 230 and the swing 210 is defined as point D, the connection point of the swing 210 and the frame 100 is defined as point E, and the connection point of the foot pedal link 310 and the swing 210 is defined as point F, wherein the point D is located between the points E and F.
[0050] In the embodiment, the point D is located between the points E and F, i.e., when the swing 210 is vertical, the connection point of the support link 230 and the swing 210 is located above the connection point of the foot pedal link 310 and the swing 210, and the connection point of the support link 230 and the swing 210 is located below the connection point of the swing 210 and the frame 100. In this way, the distance between the connection point of the foot pedal link 310 and the swing 210 and the connection point of the swing 210 and the frame 100 can be increased, and the moving distance of the foot pedal link 310 can be increased under the premise that the swing 210 swings by the same angle, so that the stride can be increased without increasing the space occupied by the front and rear of the elliptical trainer.
[0051] Further, referring to Figures 1 to 3 , the foot pedal link 310 comprises a first main section 311 and a first front bending section 312 connected to the front end of the first main section 311, the first main section 311 extends in the front-rear direction, and the foot pedal 320 is installed on the first main section 311. The first front bending section 312 is bent downward from back to front, and the front end of the first front bending section 312 is rotatably connected to the lower end of the swing 210.
[0052] In the embodiment, the front end of the foot pedal link 310 is bent downward to form the first front bending section 312, which can increase the height of the foot pedal 320 while maximizing the distance between the connection point of the foot pedal link 310 and the swing 210 and the connection point of the swing 210 and the frame 100, so that the first main section 311 of the foot pedal link 310 can be effectively prevented from colliding with the ground. In addition, the first front bending section 312 and the first main section 311 are integrally formed, which can reduce the number of components compared with the way of additionally arranging a slope rod to connect the foot pedal link 310 and the swing 210, so that the assembly of the whole machine can be simplified.
[0053] Further, the support link 230 comprises a second main section 231 and a second front bending section 232 connected to the front end of the second main section 231, the second main section 231 extends in the same direction as the first main section 311, and the roller 400 is installed on the second main section 231. The second front bending section 232 is bent upward from back to front, and the front end of the second front bending section 232 is rotatably connected to the middle part of the swing 210. In this way, the second main section 231 of the support link 230 can be arranged close to the first main section 311 of the foot pedal link 310, and the lower end of the support link 230 has enough space to connect the front end of the foot pedal link 310.
[0054] In an embodiment, as shown in Figure 1 The support connecting rod 230 and the foot pedal connecting rod 310 are arranged on the inner and outer sides of the swing 210 respectively. In this way, the support connecting rod 230 and the foot pedal connecting rod 310 can be effectively staggered, so that there is enough space between the side walls of the two connecting rods, and interference between the support connecting rod 230 and the foot pedal connecting rod 310 during movement can be effectively avoided.
[0055] In an embodiment, please refer to Figure 5 The crank rocker mechanism 200, the foot pedal mechanism 300 and the roller 400 are provided with two groups, so that one group of the crank rocker mechanism 200, the foot pedal mechanism 300 and the roller 400 are arranged on the left and right sides of the frame 100 respectively. The elliptical training machine further comprises a handrail 500 which is detachably or foldably connected to the swing 210, and the connection point of the handrail 500 and the swing 210 is located below the highest point in the movement process of the foot pedal 320.
[0056] In the embodiment, each group of the crank rocker mechanism 200, the foot pedal mechanism 300 and the roller 400 on the left and right sides of the frame 100 is installed and designed according to the foregoing embodiments, so that the foot pedals 320 on the left and right sides of the frame 100 are respectively used for the user's left and right feet to step on, so as to realize the alternate training of the user's legs. The structure and form of the handrail 500 can refer to the existing design, which is not limited here. By making the elliptical training machine comprise the handrail 500, and making the handrail 500 link with the swing 210, the user's arms can be moved synchronously through the handrail 500 while the user's legs are moving, so as to realize the whole body movement, and the movement effect of the user can be improved. The handrail 500 can be detachably connected to the swing 210 through plug-in connection, screw fixation and the like. The handrail 500 can also be rotatably connected to the swing 210, so as to realize the folding and standing of the handrail 500. By making the handrail 500 foldably connected to the swing 210, and making the connection point of the handrail 500 and the swing 210 located below the highest point in the movement process of the foot pedal 320, in this way, when the elliptical training machine is stored and packaged, the height size of the whole elliptical training machine can be minimized by detaching or folding the handrail 500, so as to reduce the storage size and packaging size of the elliptical training machine with the handrail 500, and further reduce the storage and transportation cost.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions described in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not drive the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. An elliptical trainer characterized in that, The elliptical trainer comprises a frame, a crank rocker mechanism, a pedal mechanism and a roller; The crank rocker mechanism comprises a rocker, a crank, and a support link rotatably connected to the rocker and the crank at two ends, and the rocker and one end of the crank are rotatably connected to the frame; the roller is mounted on the support link, and the distance between the axis of the roller and the connecting point between the crank and the frame is greater than the distance between the connecting point between the crank and the frame and the connecting point between the crank and the support link; The pedal mechanism comprises a pedal link and a pedal plate fixedly mounted on the pedal link, the front end of the pedal link is rotatably connected to the rocker, and the rear part of the pedal link is slidably connected to the roller.
2. Elliptical trainer according to claim 1, characterized in that The connecting point between the crank and the support link and the axis of the roller are arranged in the length direction of the support link.
3. The elliptical trainer of claim 2, wherein, The axis of the roller is located in front of the connecting point between the crank and the support link.
4. The elliptical trainer of claim 3, wherein, The rear end of the pedal plate extends out of the crank.
5. Elliptical trainer according to any of the claims 2 to 4, characterized in that The connecting point between the crank and the support link is defined as point A, the axis of the roller is defined as point B, and the connecting point between the crank and the frame is defined as point C, wherein the distance between A and B is less than the distance between A and C.
6. Elliptical trainer according to any of the claims 1 to 4, characterized in that The connecting point between the support link and the rocker is defined as point D, the connecting point between the rocker and the frame is defined as point E, and the connecting point between the pedal link and the rocker is defined as point F, wherein point D is located between E and F.
7. The elliptical trainer of claim 6, wherein, The pedal link comprises a first main section and a first front bending section connected to the front end of the first main section, the first main section extends in the front-rear direction, the pedal plate is mounted on the first main section, the first front bending section is bent from back to front and downward, and the front end of the first front bending section is rotatably connected to the lower end of the rocker.
8. The elliptical trainer of claim 7, wherein, The support link comprises a second main section and a second front bending section connected to the front end of the second main section, the second main section extends in the same direction as the first main section, the roller is mounted on the second main section, the second front bending section is bent from back to front and upward, and the front end of the second front bending section is rotatably connected to the middle part of the rocker.
9. Elliptical trainer according to any of the claims 1 to 4, characterized in that The support link and the pedal link are arranged on the inner and outer sides of the rocker.
10. Elliptical trainer according to any of the claims 1 to 4, characterized in that The crank rocker mechanism, the pedal mechanism and the roller are provided with two groups, so that one group of the crank rocker mechanism, the pedal mechanism and the roller are arranged on the left and right sides of the frame; the elliptical trainer further comprises a handrail, the handrail is detachably or foldably connected to the rocker, and the connecting point between the handrail and the rocker is located below the highest point in the movement process of the pedal plate.