CN203886109U - elliptical machine - Google Patents

Abstract

The utility model relates to an elliptical machine, which comprises a base, a transmission mechanism, a left linkage mechanism, a right linkage mechanism and a lifting device. The transmission mechanism is arranged on the base. The left and right linkage mechanisms are respectively arranged at the left and right sides of the transmission mechanism. One end of the left and right linkage mechanisms is respectively connected with the transmission mechanism, the other end is respectively provided with a left pedal and a right pedal, and the left pedal and the right pedal respectively form a motion track. The lifting device comprises a frame body, two guide rail frames, at least one movable piece and a driving piece. The driving piece comprises a motor, a screw sleeve, a connecting piece and a wire, wherein the screw sleeve is provided with an internal thread to be combined with the screw, one end of each movable piece is connected with the guide rail frame, the other end of each movable piece is provided with a roller to be contacted with a supporting surface or the ground, the connecting piece is connected with the screw sleeve, and the wire is connected with the connecting piece and the movable piece. The technical scheme provided by the utility model can change the movement track of elliptical machine effectively to reduce cost and/or promote the stability.

Description

elliptical machine

technical field

The utility model relates to an elliptical machine, in particular to a lifting device of the elliptical machine.

Background technique

Elliptical machines (ellipticals), also known as cross-trainers (cross-trainer, X-trainer), are used to simulate sports such as climbing stairs, walking, or running.

The elliptical machine can combine the advantages of a treadmill and a bicycle to perform a full-body exercise in a standing position. Since both feet are fixed on the elliptical machine at the same time, the left and right feet are stressed for half the time, which can reduce the impact force of the knee joint and reduce the probability of injury.

Elliptical machines typically have pedals for the user to step on. The pedals of traditional elliptical machines mostly have fixed motion trajectories, which makes the use of elliptical machines relatively lacking in variability.

Fig. 1 shows a kind of prior art elliptical machine, its rear end has lifting device 10, can change the motion track of pedal. As shown in the figure, the lifting device 10 of the elliptical machine has an electric motor adjustment device 13, which includes a motor 132, a screw 134, and a screw sleeve 136. The motor 132 can drive the screw 134 to rotate, so that the screw sleeve 136 is displaced in a direction away from the motor 132. . One end of the screw sleeve 136 is connected to the lifting member 14, and the other end of the lifting member 14 touches the ground. Both ends of the U-shaped piece 15 are respectively connected to the guide rail frame 12 , one end of the guide rail frame 12 is pivotally connected to one end of the frame body 11 , and the U-shaped piece 15 is pivotally connected to the lifting member 14 through the connecting portion 16 . When the screw sleeve 136 moves away from the motor 132 , the lifting member 14 exerts force on the U-shaped member 15 to make the guide rail frame 12 rotate around the pivot to lift, thereby changing the trajectory of the pedal above the guide rail frame 12 .

Other patents, such as Taiwan patent M403355, titled "Elevating Device for Elliptical Exercise Machine", also disclose a lifting device for elliptical exercise machine, which can change the trajectory of the pedals. The full text of the specification of the above-mentioned patent is incorporated herein and shall be regarded as a part of the specification of this case.

There is still room for improvement in lifting devices for elliptical machines, for example, to reduce costs and/or improve stability.

In view of the defects in the above-mentioned existing elliptical machines, the inventor actively researches and innovates based on years of rich practical experience and professional knowledge engaged in the design and manufacture of such products, and cooperates with the application of academic principles, in order to create a new structure of elliptical machines. Machine, can improve general existing elliptical machine, makes it more practical. Through continuous research, design, and after repeated trial samples and improvements, the utility model with practical value is finally created.

Contents of the invention

The main purpose of the present invention is to provide an elliptical machine to change the motion track of the elliptical machine, reduce the cost and/or improve the stability.

The purpose of this utility model and the solution to its technical problems are achieved by adopting the following technical solutions. According to an embodiment of the utility model, an elliptical machine includes a base, a transmission mechanism, a left and right linkage mechanism, and a lifting device. The transmission mechanism is arranged on the base. The left and right interlocking mechanisms are respectively arranged on the left and right sides of the transmission mechanism. One end of the left and right interlocking mechanisms is respectively connected to the transmission mechanism, and the other end is respectively provided with left and right pedals, and the left and right pedal groups respectively form motion trajectories. The lifting device includes a frame body, two guide rail frames, at least one movable part, and a driving part. The driving part includes a motor, a screw, a screw sleeve, a connector, and a wire. The screw sleeve has an internal thread and is combined with the screw. One end of each movable part is connected to the rail frame, and the other end of the movable part has a roller In contact with the supporting surface or the ground, the connecting piece is connected to the screw sleeve, and the wire is connected to the connecting piece and the movable piece.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

In one embodiment, the lifting device further includes a pivoting portion adjacent to the rear end of the frame, and the pivoting portion has a shaft, and one end of the rail frame is pivotally connected to the pivoting portion the axis.

In one embodiment, the wire is a steel cable. When the motor drives the screw to rotate, the screw sleeve moves along the screw towards the motor, the screw sleeve drives the steel cable, and the steel cable drives the roller to the The front end of the elliptical machine moves, so that the movable part drives the guide rail frame connected with it to move down to the lowest position.

In one embodiment, the wire is a steel cable. When the motor drives the screw to rotate, the screw sleeve moves along the screw in a direction away from the motor, the screw sleeve drives the steel cable, and the steel cable drives the roller to The rear end of the elliptical machine moves, so that the movable part drives the guide rail frame connected to it to move up to the highest position.

In one embodiment, the movable element is disposed inside the frame body.

In one embodiment, the movable element is disposed on the outside of the frame.

In one embodiment, the number of the movable parts is two, and they are arranged inside the frame body.

In one embodiment, each of the movable parts includes a first part, a second part, the first part is connected to the rail frame, the first part is pivotally connected to the second part, the second part has the roller, and the wire is connected The second part and the connecting piece.

In one embodiment, the movable element further includes a U-shaped structure, and the first portion of the movable element is connected to the rail frame through the U-shaped structure.

By means of the above-mentioned technical solution, the utility model at least has the advantages of changing the trajectory of the elliptical machine, reducing costs and/or improving stability.

The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly, it can be implemented according to the contents of the specification, and in order to make the above and other purposes, features and advantages of the utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and detailed descriptions are as follows.

Description of drawings

Fig. 1 shows the hoisting device of the prior art elliptical machine.

Fig. 2, Fig. 3A and Fig. 3B show the elliptical machine 2 according to a preferred embodiment of the present invention, wherein Fig. 2 is a perspective view, Fig. 3A is a side perspective view, and Fig. 3B is a partially enlarged perspective view of the bottom.

Fig. 4A and Fig. 4B are partial perspective views, showing that the driving part of the elliptical machine of the present invention pulls the movable part through the cable, so that the rail frame is at the lowest position, wherein Fig. 4B is a partial enlarged view of the bottom of the elliptical machine.

5A and 5B are partial perspective views, showing that the driving part of the elliptical machine of the present invention pulls the movable part through the cable, so that the guide rail frame is at the highest position, and Fig. 5B is a partial enlarged view of the bottom of the elliptical machine.

[Description of main component symbols]

10: Hoisting device 11: Frame

12: Guide rail frame 13: Electric motor adjustment device

132: Motor 134: Screw

136: Screw sleeve 14: Lifting piece

15: U-shaped piece 16: Connection part

2: Elliptical machine 20a/20b: left/right linkage mechanism

21: crank 23: support rod

231: Pivot joint 233: Sliding part

25: Pedal 27: Grip

271: Pivot 275: Grip

29: Connecting rod 30: Transmission mechanism

31: Drive wheel 32: Flywheel

40: Hoisting device 41: Frame

42: Pivot 421: Shaft

43: Rail frame 44: Movable parts

441: Part One 443: Part Two

445: Roller 447: U-shaped structure

45: Driver 451: Motor

453: Screw 455: Screw sleeve

457: Connecting piece 458: Wire reel

459: Cable 50: Base

Detailed ways

Various embodiments of the present application will be described in detail below, and the accompanying drawings are used as examples. In addition to these detailed descriptions, the utility model can also be widely implemented in other embodiments, and any easy replacement, modification, and equivalent changes of any of the embodiments are included in the scope of the present case, and the following patent scope prevail. In the description of the specification, many specific details are provided in order to enable readers to have a more complete understanding of the utility model; however, the utility model may still be implemented under the premise of omitting some or all of these specific details. Also, well-known steps or elements have not been described in detail in order to avoid unnecessarily limiting the invention. The same or similar elements in the drawings will be denoted by the same or similar symbols. It should be noted that the drawings are for illustrative purposes only, and do not represent the actual size or quantity of components, unless otherwise specified.

Fig. 2, Fig. 3A and Fig. 3B show the elliptical machine 2 according to a preferred embodiment of the present invention, wherein Fig. 2 is a perspective view, Fig. 3A is a side perspective view, and Fig. 3B is a partially enlarged perspective view of the bottom.

The main components of the elliptical machine 2 include a base 10 , a left/right linkage mechanism 20 a / 20 b , a transmission mechanism 30 , and a lifting device 40 .

The base 10 is erected on a supporting surface or the ground. The left linkage mechanism 20 a and the right linkage mechanism 20 b are axially disposed on the left and right sides of the transmission mechanism 30 . The left/right linkage mechanism 20a/20b may respectively include a crank 21, a support rod 23, a pedal 25, a grip rod 27 and a connecting rod 29. The lifting device 40 may include a frame body 41 , a pivoting portion 42 , two rail frames 43 , at least one movable element 44 , and a driving element 45 . The support rod 23 can have a pivot portion 231 and a sliding portion 233 . One end of the crank 21 is rotatably disposed on the transmission mechanism 30 , and the other end of the crank 21 is pivotally connected to the pivot portion 231 of the support rod 23 . The sliding part 233 can slide on the rail frame 43 . In addition, the support rod 23 is also connected to the pedal 25 . The handle bar 27 may include a pivoting portion 271 and a gripping portion 275 . One end of the connecting rod 29 is connected to the pedal 25 , and the other end is pivoted to the pivoting portion 271 . The grip portion 275 is for the user to grip to make the grip bar 27 swing back and forth.

The transmission mechanism 30 is arranged on the base 10, and is connected to the pedal 25 through two linkage mechanisms 20a/20b. When the user drives the transmission mechanism 30 through the left/right linkage mechanism 20a/20b, the movement track of the pedal 25 is an elliptical trajectory or approximate elliptical trajectories. The transmission mechanism 30 may include a driving wheel 31 and a flywheel 32 .

Figures 3A and 3B show side and partial bottom views, respectively, of the preferred embodiment elliptical machine of the present invention. As shown in FIG. 2 , FIG. 3A and FIG. 3B , the lifting device 40 may include a frame body 41 , a pivot portion 42 , a rail frame 43 , a movable part 44 , and a driving part 45 .

The driving part 45 may include a motor 451 , a screw 453 , a screw sleeve 455 , a connecting piece 457 , a coil 458 , and a steel cable 459 . The screw sleeve 455 has an internal thread and is combined with the screw 453 . The motor 451 can drive the screw rod 453 to rotate, so that the screw sleeve 455 moves away from or close to the motor 451 along the screw rod 453 . The screw sleeve 455 is connected with the connecting piece 457 , one end of the steel cable 459 is connected with the connecting piece 457 , and the other end is connected with the movable piece 44 . Between the cable 459 and the movable member 44, there may be at least one coil 458 for changing the direction of the cable 459.

The number of the movable part 44 can be single or two, and its position can be inside or outside the frame body 41 . The upper end of the movable member 44 is connected to two rail frames 43 , and the lower end has a roller 443 .

As an example without limitation, specifically, each movable member 44 has a first portion 441 and a second portion 443 . The first part 441 is connected to the guide rail frame 43, the first part 441 is pivotally connected to the second part 443, and the second part 443 has rollers 445 in contact with the supporting surface or the ground. As an example without limitation, in this embodiment, the first part of the movable member 44 can be connected to the rail frame 43 through a U-shaped structure 447 .

The pivoting portion 42 is adjacent to the rear end of the frame body 41 . The pivot portion 42 has a shaft 421 . One end of the rail frame 43 is pivotally connected to the pivot portion 42 , so that the rail frame 43 can rotate around the shaft 421 . In this embodiment, the shaft 421 of the pivoting portion 42 is at a certain height from the ground or the support surface. In another embodiment of the present invention, the pivoting portion 42 may not be provided, and the shaft 421 is directly pivoted at the rear end of the frame body 41 or adjacent to it. backend part.

As shown in FIG. 3A , the driving member 45 pulls the roller 445 of the movable member 44 through the cable 459 to move the roller backward or forward, causing the guide rail frame 43 to move upward or downward.

Fig. 4A and Fig. 4B show that the driving part 45 of the elliptical machine of the present invention pulls the movable part 44 through the steel cable 459, so that the guide rail frame 43 is located at the lowest position. 4A is a partially enlarged view of the elliptical machine 2 , and FIG. 4B is a partially enlarged view of the bottom of the elliptical machine 2 .

As shown in Figures 4A and 4B, when the motor 451 drives the screw 453 to rotate, the screw sleeve 455 moves along the screw 453 towards the direction of the motor 451, the screw sleeve 455 drives the steel cable 459, and the steel cable 459 drives the roller 445 to the direction of the elliptical machine. The front end (such as the direction of the arrow) moves, so that the movable part 44 drives the guide rail frame 43 connected with it to move down to the lowest position.

5A and 5B show that the driving part 45 of the elliptical machine of the present invention pulls the movable part 44 through the steel cable 459, so that the rail frame 43 is located at the highest position. 5A is a partially enlarged view of the elliptical machine 2 , and FIG. 5B is a partially enlarged view of the bottom of the elliptical machine 2 .

As shown in Figures 5A and 5B, when the motor 451 drives the screw 453 to rotate, the screw sleeve 455 moves along the screw 453 in a direction away from the motor 451, the screw sleeve 455 drives the steel cable 459 through the connecting piece 457, and the steel cable 459 drives the roller 445 Move towards the rear end of the elliptical machine (as the direction of the arrow), so that the movable part 44 drives the guide rail frame 43 connected to it to move up to the highest position.

Controlled by the driving member 45, the guide rail frame 43 can also be located between the aforementioned lowest position and the highest position. Thereby, the locus of movement of the pedal 25 can be variously changed.

The movable member 44 in the foregoing embodiments can be regarded as two. The first parts 441 of the two movable parts 44 are connected to the rail frame 43 through a U-shaped structure 447 . In another embodiment, the first parts 441 of the two movable parts 44 can be directly connected to the rail frame 43 . In another embodiment, the movable element 44 is single, and is disposed on the inner side and/or the outer side of the frame body 41 .

According to the elliptical machine of the embodiment of the present invention, the material of the lifting device is less, which can reduce the cost. Furthermore, although the height of the rail frame is raised, the overall height does not increase. In addition, the structure of the movable part can increase the overall stability. In addition, the components of the driving part will not fall into the frame when the lifting frame is lowered, which is more convenient for maintenance.

The above are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those who are familiar with this profession, without departing from the scope of the technical solutions of the present utility model, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all without departing from the technical solutions of the present utility model The content of the scheme, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (8)

1. An elliptical machine, characterized in that it comprises: base; The transmission mechanism is arranged on the base; The left and right interlocking mechanisms are respectively arranged on the left and right sides of the transmission mechanism. One end of the left and right interlocking mechanisms is respectively connected to the transmission mechanism, and the other end has left and right pedals respectively. The left and right pedal groups respectively form trajectory of motion; and The lifting device includes a frame body, two rail frames, at least one movable part, and a driving part, wherein the driving part includes a motor, a screw, a screw sleeve, a connecting piece, and a wire, and the screw sleeve has an internal thread and the screw In combination, one end of each movable part is connected to the rail frame, the other end of the movable part has a roller contacting the supporting surface or the ground, the connecting part is connected to the screw sleeve, and the wire is connected to the connecting part and the movable part . 2. The elliptical machine according to claim 1, wherein the lifting device further comprises a pivot portion adjacent to one end of the frame body, and the pivot portion has a shaft, and the rail frame One end is pivotally connected to the shaft with the pivoting portion. 3. The elliptical machine according to claim 1, wherein the wire rod is a steel cable. 4. The elliptical machine according to claim 1, wherein the movable member is disposed inside the frame body. 5. The elliptical machine according to claim 1, wherein the movable member is disposed outside the frame body. 6. The elliptical machine according to claim 1, wherein the number of the movable parts is two, and they are arranged inside the frame body. 7. The elliptical machine according to claim 6, wherein each of the movable parts comprises a first part and a second part, the first part is connected to the rail frame, the first part is pivotally connected to the second part, The second part has the roller, and the wire connects the second part and the connecting piece. 8 . The elliptical machine according to claim 7 , further comprising a U-shaped structure, the first part of the movable member is connected to the rail frame through the U-shaped structure.